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Struminska, Olena, Sergey Kurta, Liliya Shevchuk e Stanislaw Ivanyshyn. "Biopolymers for Seed Presowing Treatment". Chemistry & Chemical Technology 8, n.º 1 (15 de março de 2014): 81–88. http://dx.doi.org/10.23939/chcht08.01.081.
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Rochalska, M., e A. Orzeszko-Rywka. "Magnetic field treatment improves seed performance". Seed Science and Technology 33, n.º 3 (1 de outubro de 2005): 669–74. http://dx.doi.org/10.15258/sst.2005.33.3.14.
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Spitzer, T., D. Spitzerová, P. Matušinský e J. Kazda. "Possibility of using seed treatment to suppress seed-borne diseases in poppy". Plant Protection Science 50, No. 2 (6 de maio de 2014): 78–83. http://dx.doi.org/10.17221/76/2012-pps.
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In experiments using Petri dishes in the laboratory and pots in a greenhouse and climate chamber, we examined the influence of seed treatment on emergence of poppy. Four types of fungi (Alternaria spp., Dendryphion penicillatum, Fusarium spp., and Penicillium spp.) were detected on poppy seeds, with the highest infection rate being 72% for D. penicillatum. Surface disinfection decreased infection rate chiefly in D. penicillatum (by 32%) and in Alternaria spp. (by 16%). Seed treatment increased emergence by 9–10% in laboratory experiments but by only 0–6% in greenhouse experiments. Temperature plays an important role in emergence. In climate chamber experiments at a stable temperature of 12°C, the seed treatments increased emergence by 8–16%.
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Podlaski, S., Z. Chrobak e Z. Wyszkowska. "The effect of parsley seed hydration treatment and pelleting on seed vigour". Plant, Soil and Environment 49, No. 3 (10 de dezembro de 2011): 114–18. http://dx.doi.org/10.17221/4099-pse.
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The effect of two priming techniques: hardening (prehydration treatment) and solid matrix priming (SMP) was studied on the seeds of two parsley varieties (Cukrowa and Berlińska) in 3-year laboratory experiments. On the images obtained from scanning electron microscope (SEM) there is a parsley embryo developing during germination up to the moment of radicle emergence. On the surface of primed seeds, in particular using the hardening method, lateral cracks are visible. The respiratory activity of primed seeds was similar to that of non-primed in the period of initial 24 h of germination, but significantly higher after 48 h. As compared to non primed seeds solid matrix priming significantly increased the percentage and the speed of germination. Nevertheless, pelleting reduced the positive effect of priming on the germination ability, without affecting the germination speed. After 18 months of storage, the vigour of primed seeds, particularly through hardening, had significantly decreased.
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Podlaski, S., Z. Chrobak e Z. Wyszkowska. "Effect of parsley seed treatment on root yield". Plant, Soil and Environment 49, No. 5 (10 de dezembro de 2011): 213–17. http://dx.doi.org/10.17221/4115-pse.
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As parsley seed vigour is known to be low, a 3-year field study was conducted to examine the effectiveness of seed priming and pelleting. Hardening and solid matrix priming (SMP) were applied to two varieties (Cukrowa and Berlińska). Both methods of seed pre-sowing treatment increased the percentage, speed and synchrony of seedling emergence. Due to seed pre-treatment the original root yield of cv. Cukrowa increased by 6.45 to 7.09 t/ha and that of cv. Berlińska by 2.44 to 5.48 t/ha, depending on the priming technique. Pelleting of primed seeds negatively affected seed vigour as compared to the primed non-pelleted seeds.
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Struve, D. K., J. B. Jett, S. E. McKeand e G. P. Cannon. "Subsoiling in a loblolly pine seed orchard: effects on seed quality". Canadian Journal of Forest Research 19, n.º 4 (1 de abril de 1989): 505–8. http://dx.doi.org/10.1139/x89-077.
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An 8-year-old loblolly pine (Pinustaeda L.) seed orchard was subsoiled by making one (single-rip treatment) or three (multiple-rip treatment) parallel rips on opposite sides of the trees. A nonsubsoil (control) treatment was also included. Seeds were extracted and sized into small, medium, and large. Subsoiling treatments had no effect on number or percentage of small, medium, and large seeds. The multiple-rip treatment produced significantly more seeds per cone than the control treatment, but no more than the single-rip treatment. Seed size did not affect seed germination, but strong clonal effects in seed quality and vigor occurred. There was no effect of any of the subsoiling treatments on seed germination. Any subsoiling treatments used to enhance tree vigor or to alleviate soil compaction in a seed orchard should have minimal influence on seed quality.
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Navrotskaya, L. V., A. M. Bashilov, N. A. Sergeeva, S. R. Navrotskaya e A. A. Tsedyakov. "Additive seed treatment". IOP Conference Series: Earth and Environmental Science 979, n.º 1 (1 de fevereiro de 2022): 012030. http://dx.doi.org/10.1088/1755-1315/979/1/012030.
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Abstract The paper states that the problem of developing valuable starting material for breeding new varieties is very acute. In this situation, the authors consider it necessary to offer new methods of inducing aberrant or recombinative plant variability without using GMOs but attracting own hidden reserves of seeds to increase their germination, seedling growth, productivity, and yield of future agricultural products. For this purpose, the research team suggested treating wet seeds with physical factors by mobilizing forces and releasing energy reserves of seeds, activating physiological and biochemical processes at the early stages of their germination. The research showed that the more water is in the seed cells, the more immobile the rotating DNA molecule is and the more vulnerable the constituent genes are subject to irradiation. The authors found that an increase in seed humidity before irradiation led to a higher yield of chromosomal aberrations, expanding the spectrum of their economically valuable traits to be transmitted to the next generations. The authors presented the results of their studies on the effect of electrophysical factors of seed treatment. The procedure included water-thermal seed treatment with alternating electric current and subsequent laser irradiation depending on doses, type, and nature of influences stimulating the growth and development of their seedlings.
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Procházka, Pavel, Přemysl Štranc, Jan Vostřel, Jan Řehoř, Jan Křováček, Jan Brinar e Kateřina Pazderů. "The influence of effective soybean seed treatment on root biomass formation and seed production". Plant, Soil and Environment 65, No. 12 (19 de dezembro de 2019): 588–93. http://dx.doi.org/10.17221/545/2019-pse.
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The soya seed was treated before sowing with the following biological active substances: Lignohumate B, Lexin, Lexenzym, brassinosteroid, and "Complex treatment" (a mixture of saturated sugar solution, Lexin, fungicide treatment Maxim XL 035 FS and remedial pinolen substance Agrovital). During growing, the influence of biological active substances on root biomass formation and the activity of bacteria for nitrogen fixation was observed. Evaluated parameters were shoot biomass formation and dry mass formation of plants. Harvest values were considered an important output of the whole year soya growth process. As can be observed from the results, the most effective seed treatments were Lexenzym, Lexin, and "Complex treatment", where the yields were high. Moreover, the "Complex treatment" in comparison with the control variant (not treated) improved statistically conclusively not only the final yield but was helpful also for bacteria nodulation and nitrogen fixation (N<sub>2</sub>). All biologically active compounds supported the root and shoot biomass formation and the whole plant growth.
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Sharafizad, Mehran, e Leila zareh. "Effect of zinc treatments and seed treatment on seed germination and seed health of barley". Agrica 8, n.º 2 (2019): 102. http://dx.doi.org/10.5958/2394-448x.2019.00013.0.
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Roques, Alain, Jiang-Hua Sun, Xu-Dong Zhang, Gwennael Philippe e Jean-Paul Raimbault. "EFFECTIVENESS OF TRUNK-IMPLANTED ACEPHATE FOR THE PROTECTION OF CONES AND SEEDS FROM INSECT DAMAGE IN FRANCE AND CHINA". Canadian Entomologist 128, n.º 3 (junho de 1996): 391–406. http://dx.doi.org/10.4039/ent128391-3.
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AbstractFrom 1989 to 1993, trunk implants of acephate were tested for the control of seed and cone insect damage to conifer species in France and northeastern China. The treatments were promising for the control of the major pests that feed on cone and seed tissues, including cone flies, coneworms, and seedworms, in European and Siberian larch, Norway spruce, Scots and mountain pine. In contrast, acephate implants did not prevent seed chalcid damage nor that of gall midges in Douglas-fir, European larch, and Siberian larch. Treatment generally increased seed yield, but a significant increase in the number of filled seeds was seen only when chalcids and midges were absent. The 2-year effect of implants seemed limited. Acephate implantation did not seem to affect seed germination.
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Bork, C. R., A. S. Almeida, C. S. Castellano, G. Zimmer, T. D. Avila, G. E. Meneghello, S. M. Dellaostin et al. "Soybean Industrial Seed Treatment: Effect on Physiological Quality During Storage". Journal of Agricultural Science 10, n.º 8 (10 de julho de 2018): 468. http://dx.doi.org/10.5539/jas.v10n8p468.
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The aim of this study was to analyze soybean seed physiological quality after being subjected to various mixtures of pesticides via industrial seed treatment. The experiment was performed at the seed laboratory of the company BioGrow, located at São Paulo-SP, using soybean seeds cultivar NS 6700 IPRO which were subjected to 11 different treatments. Seed treatment was carried out using a treater Momesso, model L5-K, calibrated to apply a spray volume of 0.5 L 100 kg-1 of seeds in which the volume of each treatment was adjusted using distilled water. After treatment, seeds were spread over plastic strays for drying for a period of 24 hours under environmental conditions. Once dry, seeds were packed in paper bags and stored for 0 (control), 45, 90, 135 and 180 days, under uncontrolled conditions of temperature and relative humidity, when seed physiological quality was evaluated using the following tests: germination, accelerated aging, seedling emergence, speed of emergence index and speed of emergence. Soybean industrial seed treatment before storage for up to 180 days is practicable using the mixtures of pesticides tested for storing seeds under environmental conditions. All treatments tested contribute to the maintenance of seed quality throughout storage.
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Ludwig, Eduardo José, Ubirajara Russi Nunes, Osmar Damian Prestes, Lovane Klein Fagundes, Tiéle Stuker Fernandes e Nathália Saibt. "Polymer coating in soybean seed treatment and their relation to leaching of chemicals". Ambiente e Agua - An Interdisciplinary Journal of Applied Science 15, n.º 6 (3 de novembro de 2020): 1. http://dx.doi.org/10.4136/ambi-agua.2602.
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This study evaluated the physiological quality and quantified the efficiency of polymer in reducing the loss of phytosanitary products by leaching from soybean seeds of different diameters and in different treatments. Two lots of seed and two types of treatments were tested: polymers associated with seed treatment, and polymer application in layers after the seed treatment. For that, the following treatments were analyzed: Control= no seed treatment; Treat+pol= seed treatment + polymers in the mix; Treat/pol= seed treatment + polymers applied in layers; Treat= seed treatment. To evaluate seed treatment retention by the polymers, extraction equipment was employed and leaching of the active ingredient thiamethoxam was quantified. Evaluation of physical quality was conducted with tests of germination rate, first count, emergence rate, accelerated aging, seedling length, seedling dry mass and moisture content. Polymer application associated with seed treatment was efficient in reducing losses by leaching, reducing product loss by 20%. No significant differences in retention and physiological quality were found when different methods for polymer application were compared. Bigger seeds presented greater vigor, but the germination rate was unaffected.
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Basky, Zs, e I. Aponyi. "TOMATO SEED TREATMENT POSSIBILITIES AGAINST SEED BORNE DISEASES". Acta Horticulturae, n.º 220 (janeiro de 1988): 397–400. http://dx.doi.org/10.17660/actahortic.1988.220.55.
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Mansfield, Sarah, Richard J. Chynoweth, Mark R. H. Hurst, Alasdair Noble, Sue M. Zydenbos e Maureen O'Callaghan. "Novel bacterial seed treatment protects wheat seedlings from insect damage". Crop and Pasture Science 68, n.º 6 (2017): 527. http://dx.doi.org/10.1071/cp17176.
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Insecticidal seed treatments are used commonly worldwide to protect seedlings against root feeding insects. Organophosphate insecticides that have been used for seed treatments are being phased out and replaced with neonicotinoid insecticides. Concerns about the environmental impact of neonicotinoids have prompted a search for alternatives. Microbial insecticides are a biological alternative for seed treatments to target root feeding insects. Six field trials with organophosphate granules (diazinon, chlorpyrifos), neonicotinoid seed treatment (clothianidin) and microbial (Serratia entomophila) seed treatment targeting grass grub, a New Zealand scarab pest, were conducted in wheat crops at several sites over 4 years (2012–2015). Sites were selected each year that had potentially damaging populations of grass grub present during the trials. Untreated seeds led to significant losses of plants and wheat yield due to lower seedling establishment and ongoing plant losses from grass grub damage. Insecticide and microbial treatments increased plant survival in all trials compared with untreated seeds. Better plant survival was associated with higher yields from the insecticide treatments in four out of six trials. Neonicotinoid seed treatment alone gave similar yield increases to combined neonicotinoid seed treatment and organophosphate granules. Microbial seed treatment with S. entomophila gave similar yield increases to insecticide treatments in two out of six trials. Seed treatment with S. entomophila is an alternative for grass grub control; however, development of a commercial product requires effective scale-up of production, further research to improve efficacy, and viability of the live bacteria needs to be maintained on coated seed.
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Kazda, J., P. Baranyk e D. Nerad. "The implication of seed treatment of winter oilseed rape". Plant, Soil and Environment 51, No. 9 (19 de novembro de 2011): 403–9. http://dx.doi.org/10.17221/3604-pse.
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Small plot trials studying the impact of different seed treatments on the occurrence of pests and diseases in autumn were carried out during 2000–2003. The aim was to verify the efficiency of different fungicidal and insecticidal oilseed rape seed treatments and to determine the economical effectiveness of this method of protection. The following insecticidal seed treatments were used: Promet 400 CS (furathiocarb), Cosmos 500 FS (fipronil), Chinook 200 FS (imidacloprid & beta-cyfluthrin) and Marshal ST (carbosulfan). The seed treatment Chinook 200 FS in combination with newly developed fungicidal compound was also assessed. The most effective treatment was Chinook 200 FS (imidacloprid & beta-cyfluthrin), particularly against flea beetles (Phyllotreta spp.), and lower infestations by larvae of the turnip gall weevil (Ceutorhynchus pleurostigma Marsh.) were also found. However, the efficiency lasts no more than 4–5 weeks after sowing. The use of common insecticidal treatments in cases of necessity was found to be beneficial. Plant density in autumn and in spring was greatest in the Chinook 200 FS treatment and in some years a positive influence on yield was also observed with this treatment.
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Gaol, Mangadas Lumban, e J. E. D. Fox. "Pengaruh Variasi Ukuran Biji Terhadap Perkecambahan Acacia Fauntleroyi (Maiden) Maiden and Blakely". Berkala Penelitian Hayati 14, n.º 2 (30 de junho de 2009): 153–60. http://dx.doi.org/10.23869/bphjbr.14.2.20096.
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The aim of this study was to investigate to what extent are germination of A. fauntleroyi affected by seed size. Does pre-treatment improve germination? Under what temperature regime does most seed germinate? Three seed size classes (small, medium and large) were chosen. Seeds were pre-treatments either at ambient, 50°C, 75°C or 100°C and incubated at 15°C or 30°C. Then, number of seed that germinate and speed of germination were measure. Five seeds representing each of small, medium and large seed sizes were also selected and the seed coat thickness measured. Seed size, pre-treatment temperature and incubation temperature all affected the number of seed that germinated. Pre-treatment temperature affected germination more than incubation temperature. Incubation temperature affected germination more than seed size. The interaction of seed size and pre-treatment temperature was stronger than that between seed size and incubation temperature. Small seeds produce less germination than medium or large seeds, however small seed germinated sooner. Seed coat thickness varied among seed sizes. Thinner seed coats occur in smaller than larger seeds.
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Kabilan, M., R. Balakumbahan, K. Nageswari e S. Santha. "Effect of seed treatments on seed germination and seedling parameters in the F2 generation of mundu chilli (Capsicum annum L.)". Journal of Applied and Natural Science 14, SI (15 de julho de 2022): 53–57. http://dx.doi.org/10.31018/jans.v14isi.3565.
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Germination in chilli seeds is poor and the duration taken for the germination is long. In order to overcome their problems in germination, the seeds were to be subjected to seed treatments, So that the germination would be effective. The experiment was conducted at the Department of Vegetable Science HC & RI, Tami Nadu Agricultural University (TNAU), Periyakulam to study the effect of seed treatment views on the seedling character of mundu chilli. The experiment was laid in FCRD design with three replications. In this study, four F2 crosses viz., PKM CA 20 X PKM CA 08 (C1), PKM CA 32 X PKM CA 33 (C2), PKM CA 32 X PKM CA 20 (C3), PKM CA 38 X PKM CA 33 (C4) and seven treatments namely, Control (T0), Seed treatment with KNO3 0.5% (T1), Seed treatment GA3 50 ppm (T2), Seed treatment with NAA 100 ppm (T3), Hot water seed treatment at 60° C for 15 minutes (T4), Seed treatment with cow urine (T5), Seed treatment with Trichoderma viride (T6). Among all F2 crosses, PKM CA 38 X PKM CA 33 (C4) was most responsive to seed treatments in terms of the percent of seed germination and vigor index, followed by progeny PKM CA 32 X PKM CA 33 (C2) for root length and PKM CA 32 X PKM CA 20 (C3) for shoot length. The statistical analysis of the data showed the superiority of all the seed treatments over the control. The GA₃ treatment resulted in the maximum percentage of seed germination, root length, shoot length and vigor index followed by KNO3. GA3 breaks the dormancy in the seeds and induces seed germination rapidly. Thus GA3 finds its way as the seed treatment agent in chilli.
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Tavares, Lizandro Ciciliano, Cassyo Araújo Rufino, Sandro de Oliveira, André Pich Brunes e Francisco Amaral Villela. "Treatment of rice seeds with salicylic acid: seed physiological quality and yield". Journal of Seed Science 36, n.º 3 (9 de setembro de 2014): 352–56. http://dx.doi.org/10.1590/2317-1545v36n3636.
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Seed treatment with growth regulators, especially salicylic acid, is a promising alternative to the seed industry because it is an important inducer of resistance to diseases and pests, as well as acting significantly on quality and seed yield. The objective of this study was to evaluate the performance of rice seed treated with different concentrations of salicylic acid, as well as assess the crop yield and seed quality. The treatments consisted of increasing levels of 0, 50, 100, 150 and 200 mg.L-1 salicylic acid. To this was prepared a stock solution of salicylic acid and the highest concentration by successive dilution in distilled water, the other concentrations were obtained. The physiological quality of seeds produced was treated and evaluated by tests of vigor and germination, and after harvest were evaluated seed yield. It follows that treatment of rice seeds with salicylic acid concentrations up to 130 mg.L-1 at a dose of 2 mL.kg-1 seed does not affect the germination and affects the strength, however provides substantial increases in the yield of seeds. The seed treatment with salicylic acid has no influence on seed quality produced.
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Contreras, Samuel, Mark A. Bennett, James D. Metzger, David Tay e Haim Nerson. "Red to Far-red Ratio During Seed Development Affects Lettuce Seed Germinability and Longevity". HortScience 44, n.º 1 (fevereiro de 2009): 130–34. http://dx.doi.org/10.21273/hortsci.44.1.130.
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Thermoinhibition and photosensitivity are two characteristics of lettuce seed that frequently affect its stand. The main objective of this study was to evaluate the hypothesis that lettuce seed germinability and longevity are affected by the red to far-red light ratio (R:FR) under which seeds maturate. ‘Tango’ lettuce seeds were produced in growth chambers under one of two treatments: 1) red-rich light (R treatment) and 2) far-red-rich light (FR treatment). For both treatments, the percentage of normal seedlings germinated at 20 °C–light was ≈100%. When germinated under the light, seeds from the R treatment exhibited a higher germination percentage and a faster germination (under a broader range of temperatures) than seeds from the FR treatment. When germinated in the dark, seeds from the R treatment germinated 100% between 12 and 23 °C and over 50% at 30 °C, whereas seeds from the FR treatment germinated less than 35% between 12 and 23 °C and less than 5% at 30 °C. Seeds from the R treatment had lower abscisic acid (ABA) content and were better able to germinate when exposed to external ABA concentrations than seeds from the FR treatment. Seed longevity as assessed by the accelerated aging test was higher in seeds from the FR treatment, indicating that red-rich light was detrimental to longevity. In another experiment, lettuce seeds that developed under similar conditions were harvested at approximately the moment of maximum dry weight accumulation and desiccated in dark, far-red, red, or fluorescent + incandescent light. Seeds desiccated under red light exhibited higher dark germination than the other treatments; however, no differences were observed in thermoinhibition or longevity. These results suggest that lettuce seed produced in an environment with a high R:FR light ratio will exhibit reduced thermoinhibition and photosensitivity as compared with production in a lower R:FR light environment.
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Afzal, I., K. Mukhtar, M. Qasim, S. M. A. Basra, M. Shahid e Z. Haq. "Magnetic stimulation of marigold seed". International Agrophysics 26, n.º 4 (29 de outubro de 2012): 335–39. http://dx.doi.org/10.2478/v10247-012-0047-1.
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Abstract The effects of magnetic field treatments of French marigold seeds on germination, early seedling growth and biochemical changes of seedlings were studied under controlled conditions. For this purpose, seeds were exposed to five different magnetic seed treatments for 3 min each. Most of seed treatments resulted in improved germination speed and spread, root and shoot length, seed soluble sugars and a-amylase activity. Magnetic seed treatment with 100 mT maximally improved germination, seedling vigour and starch metabolism as compared to control and other seed treatments. In emergence experiment, higher emergence percentage (4-fold), emergence index (5-fold) and vigorous seedling growth were obtained in seeds treated with 100 mT. Overall, the enhancement of marigold seeds by magnetic seed treatment with 100 mT could be related to enhanced starch metabolism. The results suggest that magnetic field treatments of French marigold seeds have the potential to enhance germination, early growth and biochemical parameters of seedlings.
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Holc, Matej, Alenka Vesel, Rok Zaplotnik, Domen Paul, Gregor Primc, Miran Mozetič, Peter Gselman e Nina Recek. "Surface Modifications of Wheat Cultivar Bologna upon Treatment with Non-Equilibrium Gaseous Plasma". Plants 11, n.º 12 (11 de junho de 2022): 1552. http://dx.doi.org/10.3390/plants11121552.
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Seeds of wheat cultivar Bologna were treated with a low-pressure, inductively coupled, radio frequency oxygen plasma. E-mode and H-mode plasma at the real powers of 25 and 275 W, respectively, was used at treatment times of 0.1–300 s. Plasma affected seed surface chemistry, determined by XPS, and surface topography, visualized by SEM. The combined effects of functionalization and etching modified seed surface wettability. The water contact angle (WCA) exponentially decreased with treatment time and correlated with the product of discharge power and treatment time well. Super-hydrophilicity was seen at a few 1000 Ws, and the necessary condition was over 35 at.% of surface oxygen. Wettability also correlated well with O-atom dose, where super-hydrophilicity was seen at 1024–1025 m−2. A relatively high germination percentage was seen, up to 1000 Ws (O-atom dose 1023–1024 m−2), while seed viability remained unaffected only up to about 100 Ws. Extensively long treatments decreased germination percentage and viability.
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Jakhar, B. L., Bindu Panickar e Y. Ravindrababu. "Management of white fly, Bemisia tabaci (Gennadius) through seed treatment in moth bean". Journal of Applied and Natural Science 8, n.º 2 (1 de junho de 2016): 890–93. http://dx.doi.org/10.31018/jans.v8i2.892.
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A seed treatment trial was conducted at research farm of Centre of Excellence for Research on Pulses, S. D. Agricultural University, Sardarkrushinagar. The experiment was conducted for the control of white fly by seed treatment, four insecticides were used for seed treatment with two different doses of each insecticides viz., Bifenthrin 10 EC, Imidacloprid 600FS,Thiomethoxam 35 FS and Fipronil 5%SC, these treatments were found significantly (at 5 %) superior over the control in reducing the white fly population in moth bean. The seed treatment with Thiomethoxam35 FS @5g/kg seeds found minimum white fly, Bemisia tabaci population (0.32 /leaf) followed by Imidacloprid 600FS @ 5 g/kg seeds (white fly 0.39/leaf) and maximum was recorded in control ( 1.06/leaf. Farmers are advised to use seed treatments with Thiomethoxam35 FS @5g/kg seeds or Imidacloprid 600FS @ 5 g/kg seeds before the sowing of moth bean crop for the control of white fly.
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MELLON, J. E., e P. J. COTTY. "No Effect of Soybean Lipoxygenase on Aflatoxin Production in Aspergillus flavus–Inoculated Seeds". Journal of Food Protection 65, n.º 12 (1 de dezembro de 2002): 1984–87. http://dx.doi.org/10.4315/0362-028x-65.12.1984.
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Soybean lines lacking lipoxygenase (LOX) activity were compared with soybean lines having LOX activity for the ability to support growth and aflatoxin B1 production by the fungal seed pathogen Aspergillus flavus. Whole seeds, broken seeds, and heat-treated (autoclaved) whole seeds were compared. Broken seeds, irrespective of LOX presence, supported excellent fungal growth and the highest aflatoxin levels. Autoclaved whole seeds, with or without LOX, produced good fungal growth and aflatoxin levels approaching those of broken seeds. Whole soybean seeds supported sparse fungal growth and relatively low aflatoxin levels. There was no significant difference in aflatoxin production between whole soybean seeds either with or without LOX, although there did seem to be differences among the cultivars tested. The heat treatment eliminated LOX activity (in LOX+ lines), yet aflatoxin levels did not change substantially from the broken seed treatment. Broken soybean seeds possessed LOX activity (in LOX+ lines) and yet yielded the highest aflatoxin levels. The presence of active LOX did not seem to play the determinant role in the susceptibility of soybean seeds to fungal pathogens. Seed coat integrity and seed viability seem to be more important characteristics in soybean seed resistance to aflatoxin contamination. Soybean seeds lacking LOX seem safe from the threat of increased seed pathogen susceptibility.
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Pazdera, J., e V. Hosnedl. "Effect of hydration treatments on seed parameters of different lettuce (Lactuca sativa L.) seed lots". Horticultural Science 29, No. 1 (6 de janeiro de 2012): 12–16. http://dx.doi.org/10.17221/4464-hortsci.
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The influence of hydration treatments on seed parameters of lettuce seed lots with different initial quality was investigated. Nine seed lots were treated by prehydration (for 3, 6, 12 and 24 hours) and by osmopriming in polyethylene glycol 6,000 solution (for 24, 72 and 144 hours) with osmotic potential –1.5 MPa. The result of hydration treatment depends on seed lot attributes. The germination percentage is not a sufficient criterion for determination of seed suitability for hydration treatment. A possible complementary parameter can be the mean time of germination (MTG) with high correlation between untreated and treated seed lots. The effect of hydration also depends on the hydration method and time of treatment. The osmopriming is a more suitable method for lettuce seed than prehydration. Generally, a shorter time of hydration (till 6 hours at prehydration and till 72 hours at priming) proved more effective on the parameters of lettuce seed lots after treatment.
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Gill, Navjot, Shikha Tiwary, Vivek Kumar e Shivam Kumar. "Seed Treatment Improved Heat Stress Tolerance During Seed Germination". International Journal of Advances in Agricultural Science and Technology 9, n.º 5 (30 de maio de 2022): 50–65. http://dx.doi.org/10.47856/ijaast.2022.v09i05.006.
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Heat stress is a major problem raised in agriculture sector due to increasing temperature in temperature. Due to Increase in temperature plant en counter physiological and biochemical changes which directly affect plant growth and production. There are multiples method of seed treatment for improving heat stress tolerance during seed germination for better growth and production. There are different biotic and abiotic stresses throughout plant ontogeny. To overcome these stresses different approaches have been made and practiced, there are few methods that are still in research in different research institute. The negative effects of heat stress can be reduced by developing plant extracts through the development of thermo tolerance using a variety of genetic methods. For this purpose, however, a complete understanding of plant life responses to high temperatures, heat tolerance methods and possible techniques for improving plant heat tolerance is essential. Some treatment can be particularly time consuming, while other treatment are denied by countries in the world.
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Ramdan, E. P., A. Y. Perkasa, T. K. K. Azmi, Aisyah, R. Kurniasih, P. I. Kanny, Risnawati e P. Asnur. "Effects of physical and chemical treatments on seed germination and soybean seed-borne fungi". IOP Conference Series: Earth and Environmental Science 883, n.º 1 (1 de outubro de 2021): 012022. http://dx.doi.org/10.1088/1755-1315/883/1/012022.
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Abstract Soybean is an important food commodity in Indonesia after rice and maize. Plant pathogens still constrain the increase in soybean productivity. One of the plant pathogenic infections can occur during the seed phase. Therefore this study aimed to determine the effect of physical and chemical treatments as control of seed-borne fungi and their impact on soybean seed germination. This study used a completely randomized design consisting of 9 treatments, namely physical therapy by heating the seeds in a microwave at a temperature of 40 °C for 10, 20, 30, and 40 seconds and chemical treatment by soaking the seeds in a fungicide with active ingredient difenoconazole with a concentration of 0.5%, 1%, 2%, and 3%. Seeds without heating and as control are soaking fungicides. Each treatment was repeated three times. The seeds that have been given treatments are then planted using the growing test technique and incubated for seven days. Furthermore, the seed viability and the growth of pathogenic fungi were observed at the end of incubation. The results showed that soybean seed germination was not affected by physical and chemical treatments. The seed viability of 100% with or without treatment. This was confirmed by the findings of seed-borne fungi (Curvularia, Fusarium, Aspergillus) with a low infection rate of 0.01-0.19%. Chemical treatment with concentrations of 0.5%, 2%, and 3% had a significant effect on the Fusarium infection level, which was higher than the control, which was 0.18%, 0.17%, and 0.19%. Meanwhile, for Curvularia and Aspergillus, physical and chemical treatments did not have a significant effect.
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Akter, Mst Arjina, AKM Kamal Hasan, Sheikh Afsar Uddin e Ismail Hossain. "Seed treatment for improving quality of hybrid seeds of rice". Asian Journal of Medical and Biological Research 1, n.º 3 (23 de fevereiro de 2016): 406–15. http://dx.doi.org/10.3329/ajmbr.v1i3.26446.
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Seeds of 15 hybrid rice varieties viz. Durber, Agomoni, Meghna, Hybrid super, Moyna, Tia, Gold, Aloron, Jagoron, Suborno, Safollo, Hira-1, Hira-2, Hira-4 and Hira-6 were collected from five different seed producing companies of Bangladesh. BAU-Biofungicide (3%), extracts of Garlic (1:1), Allamanda leaf (1:1) Bavistin (0.3%), Thiovit ( 0.3%) and Provax (0.3%) were used for treating seeds to improve quality of hybrid seeds of rice. The moisture content of seed samples ranged 12.20% to 14.37%, where highest moisture content was found in variety Meghna and lowest in variety Moyna. 1000-seed weight of seed samples ranged from 20.00 to 26.00g, where highest weight was recorded in Hira-4 and lowest was recorded both in Aloron and Hira-1. Seed health test revealed 11 different seed borne fungi viz. Bipolaris oryzae (0.0 to 25.5%), Fusarium moniliforme (0.00 to 3.0%), Fusarium oxysporum (0.0 to 18.0%), Aspergillus flavus (0.00 to 11.0%), Aspergillus niger (0.00 to 5.0%), Aspergillus candidus (0.00 to 15.0%), Penicillium spp. (0.0 to 7.0%) , Alternaria padwickii (0.0 to 1%), Alternaria tenuis (0.0 to 11.0%), Curvularia lunata (0.0 to 40.0%) and Nigrospora oryzae (0.0 to 4.0%) . Germination test resulted normal seedlings from 26.00 to 97.00%, where highest was recorded in variety Jagoron that treated with BAU-Biofungicide resulting highest increase in number of normal seedlings by 239.28% over untreated control. BAU-Biofungicide significantly decreased (upto 90.00%) formation of abnormal seedlings over untreated control. Moreover, BAU-Biofungicide increased up to 713.78% Vigor index over untreated control.Asian J. Med. Biol. Res. December 2015, 1(3): 406-415
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Freiberg, Joice Aline, Marcos Paulo Ludwig, Suemar Alexandre Gonçalves Avelar e Eduardo Girotto. "Seed treatment and its impact on wheat crop yield potential". Journal of Seed Science 39, n.º 3 (setembro de 2017): 280–87. http://dx.doi.org/10.1590/2317-1545v39n3177754.
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Abstract: In the sowing process, the technique of seed treatment may assist in maintaining crop yield potential. This present study aimed to assess how wheat seed treatment with two different sources of micronutrients, combined with fungicide + insecticide protective treatment and coating with liquid polymer, may impact its vegetative development and grain production. Wheat seeds of cultivar Tec Vigore were subjected to three different treatments using micronutrient containing zinc: no micronutrient, micronutrient 1 (1% Mn, 0.1% Mo, 10% Zn); micronutrient 2 (0.3% B, 0.3% Co; 3% Zn), where micronutrient treatments were combined with different protective treatments used for seed treatment: untreated seeds, polymer (Color seed He), fungicide (Vitavax® Thiram 200 SC) + insecticide (Cruiser® 350 FS) and combination of polymer + fungicide + insecticide. We assessed parameters related to crop development, such as seedling emergence, dry matter of root and shoot, tillers, and for physiological maturity, we assessed grain yield and hectoliter weight. Seed treatment with micronutrients, polymer, fungicide + insecticide and combinations thereof does not reduce emergence and may increase seedling stand, but without influencing wheat grain yield.
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Powell, A. A., e S. Matthews. "Seed Treatments: Developments and Prospects". Outlook on Agriculture 17, n.º 3 (setembro de 1988): 97–103. http://dx.doi.org/10.1177/003072708801700302.
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Although the treatment of seeds to prevent disease is a practice of great antiquity, recent years have seen the advent of increasingly more sophisticated techniques. These can confer various advantages, including the production of seeds of uniform shape and size to facilitate sowing; protection against pests and diseases; control of dormancy; and enhancement of growth. Seed rather than foliar application of agrochemicals also has environmental advantages.
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Siregar, Iskandar, Riki Ramdhani, Evayusvita Rustam e Dede Sudrajat. "The Effect of Invigoration Using Polyethylene Glycol And Ultra Fine Bubble on Improving of Sengon Seeds (Falcataria Moluccana Miq.) Quality After Two Years Storage". Jurnal Wasian 8, n.º 2 (30 de dezembro de 2021): 133–43. http://dx.doi.org/10.20886/jwas.v8i2.5997.
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Utilization of seeds storage results in decreased plant productivity. The increase can be used by treating seeds before planting through the technique of invigoration. This purpose of the study is to assess the effectiveness of invigoration methods using polyethylene glycol (PEG 6000) and ultrafine bubbles (UFB) to improve viability and vigor of sengon seeds (Falcataria moluccana). Seed agieng using 96 % ethanol was carried out to obtain the diversity of seedlot viability as the materials for testing the effectiveness of invigoration treatments. A complete random design was used to test the effectiveness of 5 invigoration treatments, i.e., seed without invigoration treatment, soaking in PEG 6000 -0.8 Mpa, soaking in PEG 6000 -1.2 Mpa, soaking in UFB water injected by environmental air, and soaking in UFB water injected by oxygen 99 %, with soaking time is 24 hours for each treatment. Seed agieng resulted three classes of seed viability, i.e. 62 % (initial seed), 83 % (seed agieng for 30 minutes) and 57 % (seed agieng for 60 minutes). In the condition of seed germination before treatment (DBA) 57 % and DBA 62%, invigoration treatments were significantly affected on seed germination capacity, but not significantly different in DBA 83 %. The soaking treatment of UFB injected by oxigen 99 % was able to improve the germination parameters (germination capacity, germination rate, and vigor index) on the sengon seeds with DBA 57 %. For seeds with DBA 62 %, the soaking treatment in UFB injected by environmental air was provided the best germination capacity, T50, and vigor index. The treatment of UFB injected by oxygen 99 % was more effective to improve the seed with very low viability and vigor (DBA 57 %). In general, improving of seed viability and vigor is more effective by using UFB than PEG 6000.
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Callan, Nancy W., e Don E. Mathre. "Biological Seed Treatments". HortScience 30, n.º 4 (julho de 1995): 749E—749. http://dx.doi.org/10.21273/hortsci.30.4.749e.
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Biological seed treatment offers a safe, environmentally responsible option for protection of seeds and seedlings from attack by soilborne pathogens. Most effective biological seed treatments have used either bacterial or fungal agents. The efficacy of a biological seed treatment depends upon the ability of the biocontrol agent to compete and function on the seed and in the rhizosphere under diverse conditions of soil pH, nutrient level, moisture, temperature, and disease pressure. Seed treatment performance may be improved through application and formulation technology. An example of this is the bio-priming seed treatment, a combination of seed priming and inoculation with Pseudomonas aureofaciens AB254, which was originally developed for protection of sh-2 sweet corn from Pythium ultimum seed decay. Bio-priming has been evaluated for protection of seed of sweet corn and other crops under a range of soil environmental conditions.
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Parera, Carlos A., e Daniel J. Cantliffe. "Presowing Seed Treatments to Enhance Supersweet Sweet Corn Seed and Seedling Quality". HortScience 29, n.º 4 (abril de 1994): 277–78. http://dx.doi.org/10.21273/hortsci.29.4.277.
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Poor emergence and low seedling vigor are characteristics of many supersweet sweet corn (Zea mays L.) cultivars carrying the shrunken-2 (sh2) gene. Four sh2 sweet corn cultivar seeds [`How Sweet It Is' (HSII), `Crisp N' Sweet 711' (CNS-711), `Sweet Belle' (SB), and `Dazzle' (DZ)] were solid-matrix-primed (SMP), SMP with sodium hypochlorite (SMPcl), treated with a fungicide combination (F) (Imazalil + Captan + Apron + Thiram), or primed with the aforementioned fungicides (SMPf). The seed treatments were tested in the laboratory and the field. Seed imbibition and leachate electrical conductivity were lower in SMP seeds than in nonprimed seeds. In the field, emergence percentage and rate of CNS-711 and SB (high-vigor seeds) were not improved by the seed treatments compared to the nontreated seeds. Emergence percentage and rate of HSII and DZ (considered low-vigor seeds) were improved as a result of SMPcl, SMPf, or F treatments compared to nonprimed seeds. Compared to the F treatment, the SMPcl presowing treatment increased DZ seedling emergence rate and percentage. The combined SMP and seed disinfection via NaOCl seems to be a promising fungicide seed-treatment substitute that improves the stand establishment and seedling vigor of sh2 sweet corn cultivars. Chemical names used: 1-[2-(2,4-dichlorophenyl)-2-(2-propenyloxy)ethyl]-1 H imidazole (Imazalil); N-[(trichloromethyl)thio]-4-cyclohexene-1,2-dicarboximide(Captan); N- (2,6-dimethylphenyl)- N -(methoxyacetyl)alanine methyl ester (Apron); tetramethylthiuram disulfide (Thiram).
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Vojvodić, Milorad, e Renata Bažok. "Future of Insecticide Seed Treatment". Sustainability 13, n.º 16 (6 de agosto de 2021): 8792. http://dx.doi.org/10.3390/su13168792.
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Seed treatment as a method of local application of pesticides in precise agriculture reduces the amount of pesticides used per unit area and is considered to be the safest, cheapest and most ecologically acceptable method of protecting seeds and young plants from pests in the early stages of their development. With the introduction of insecticides from the neonicotinoid group in the mid-1990s, the frequency of seed treatment increased. Due to suspected negative effects on pollinators, most of these insecticides are banned in the European Union. The ban has therefore led to a reduction in the number of active substances approved for seed treatment and to an increased re-use of active substances from the group of pyrethroids as well as other organophosphorus insecticides, which pose potentially very serious risks, perhaps even greater than those of the banned neonicotinoids. The objective of this review is to analyze the advantages and disadvantages of seed treatment and the potential role of insecticide seed treatment in reducing the negative impact of pesticides on the environment. The main disadvantage of this method is that it has been widely accepted and has become a prophylactic protective measure applied to almost all fields. This is contrary to the principles of integrated pest management and leads to an increased input of insecticides into the environment, by treating a larger number of hectares with a lower amount of active ingredient, and a negative impact on beneficial entomofauna. In addition, studies show that due to the prophylactic approach, the economic and technical justification of this method is often questionable. Extremely important for a quality implementation are the correct processing and implementation of the treatment procedure as well as the selection of appropriate insecticides, which have proven to be problematic in the case of neonicotinoids. The ban on neonicotinoids and the withdrawal of seed treatments in oilseed rape and sugar beet has led to increased problems with a range of pests affecting these crops at an early stage of growth. The results of the present studies indicate good efficacy of active ingredients belonging to the group of anthranilic diamides, cyantraniliprole and chlorantraniliprole in the treatment of maize, soybean, sugar beet and rice seeds on pests of the above-ground part of the plant, but not on wireworms. Good efficacy in controlling wireworms in maize is shown by an insecticide in the naturalites group, spinosad, but it is currently used to treat seeds of vegetable crops, mainly onions, to control onion flies and flies on other vegetable crops. Seed treatment as a method only fits in with the principles of integrated pest management when treated seeds are sown on land where there is a positive prognosis for pest infestation.
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Procházka, P., P. Štranc, K. Pazderů e J. Štranc. "The influence of pre-sowing seed treatment by biologically active compounds on soybean seed quality and yield". Plant, Soil and Environment 62, No. 11 (9 de novembro de 2016): 497–501. http://dx.doi.org/10.17221/570/2016-pse.
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Pavel, Procházka, Štranc Přemysl, Pazderů Kateřina, Štranc Jaroslav e Vostřel Jan. "Effects of biologically active substances used in soybean seed treatment on oil, protein and fibre content of harvested seeds". Plant, Soil and Environment 63, No. 12 (12 de dezembro de 2017): 564–68. http://dx.doi.org/10.17221/702/2017-pse.
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In 4-year trials, soybean seeds were treated with the following biologically active substances: Lignohumate B (a mixture of humic acids and fulvic acids); Lexin (a mixture of humic acids and fulvic acids enriched with auxins); brassinosteroid (a synthetic analogue of natural epibrassinolide 24) and so-called ‘Complex seed treatment’ (a mixture of a saturated solution of sucrose, Lexin, the fungicide Maxim XL 035 FS and an adjuvant on the basis of pinolene). After harvesting soybean seeds from the individual treatments, they were analysed for oil, protein and fibre contents. The results show that the most effective method was the ‘Complex seed treatment’ which, compared to the untreated variant, significantly increased not only the yield but also the oil content of the seeds.
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Loehrlein, Marietta, e Dennis T. Ray. "230 Seed Priming of Triploid Watermelon Seed". HortScience 34, n.º 3 (junho de 1999): 481F—482. http://dx.doi.org/10.21273/hortsci.34.3.481f.
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Triploid watermelon seed does not germinate in cold, wet soils as well as diploids; germination is slower due to reduced embryo size and thicker seed coat; fissures on the seed coat provide safe harbour for fungal spores; and triploid fruit set is later than most diploid cultivars. Because of these problems producers often transplant rather than direct-seed seedless watermelons. Seed priming has been shown to improve germination in other crops and would be an attractive method allowing for direct seeding of seedless watermelons. Seed from open-pollinated 4n × 2n crosses were primed in solutions of H2O, polyethylene glycol 8000, KNO3, or left untreated. Treatment times were 1, 3, or 6 days, and treated seed were subsequently dried for either 1 or 7 d. Seed were scored for germination in the laboratory and emergence under field conditions. Germination was better using H2O than KNO3 and PEG but not always better than the untreated control. Treatment time of 1 day was superior to 3 or 6 days, but length of drying time was insignificant. In the field trial, treatments did not differ in emergence.
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Erdogan Genç, Hanife, e Ali Ömer Üçler. "Effects of different treatments on seed dormancy breaking and germination in Acer cappadocicum Gleditsch var. cappadocicum". Šumarski list 144, n.º 3-4 (30 de abril de 2020): 159–66. http://dx.doi.org/10.31298/sl.144.3-4.5.
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This study was carried out to determine effects of different pretreatment on seed germination and to overcome dormancy in Acer cappadocicum seeds. The seeds were collected in 2008 three times with aproximately 15-days intervals. In order to overcome dormancy, several germination treatments were applied. The treatments were (1) different seed collection time, (2)soaking in water, (3) cold-moist stratification and (4) GA<sub>3</sub> (gibberellic acid) application. The treated seeds were germinated in growing chamber at 5 <sup>0</sup>C and in greenhouse conditions. This research showed that seeds of Acer cappadocicum exhibit physiological dormancy and require stratification period to overcome seed dormancy. The highest germination percentage in the growing chamber subjected to GA<sub>3</sub> process after eight weeks of stratification treatment was 62 % for Acer cappadocicum seeds. The highest germination percentage in greenhouse was obtained with cold stratification after eight weeks (95 %). It was found out that GA<sub>3</sub> treatment had a significant effect on germination in growth chamber + 5 <sup>0</sup>C but GA<sub>3</sub> treatment didn’t have a significant effect on germination in greenhouse conditions. GA<sub>3</sub> treatment and soaking of unstratified seeds in water for 48 hr didn’t have any positive effect on germination value in greenhouse conditions. Although growth chamber and green house results both indicated that seed collection time did not seem to play a role as statistically on seed germination, Duncan’s test showed that the third seed collection time was in a different group.
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Veselá, M. "Amaranth seed extraction by propan-2-ol after enzymatic treatment". Czech Journal of Food Sciences 22, SI - Chem. Reactions in Foods V (1 de janeiro de 2004): S177—S178. http://dx.doi.org/10.17221/10653-cjfs.
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A process of amaranth seed grinding followed by extraction was studied. For fat emulsion stability impairment the enzyme G-Zyme<sup>®</sup>G999 was used. Using this process the improved fat separation was achieved.
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Hilli, Jitendra Kumar S., Rehan Malik, A. G. Vijayakumar e Ravi Hunje. "Effect of seed coating polymers on performance in soybean (Glycine max. L) Var. JS335". INTERNATIONAL JOURNAL OF PLANT SCIENCES 16, n.º 1 (15 de janeiro de 2021): 52–58. http://dx.doi.org/10.15740/has/ijps/16.1/52-58.
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Seed coating especially film coating, is one such technique which has gained commercial importance owning to its practical utility as an effective delivery system as seed protectant and fortifying chemicals which maintain good germinability and vigour in field as well as laboratory viz.,strong seedlings grow faster than less vigorous ones, are more tolerant to adverse conditions in the seedbed and are better to resist diseases. Seeds of soybean cv. JS-335 were coated with polymer ((DISCO AG SP RED L-200), protectant (thiram and carboxin), bioagent (Mycorrhiza) and polymer untreated seeds as control. It was observed that, irrespective of the treatments, the seed quality parameters declined progressively with the increase in storage period (12 months). Under field conditions, higher vigour (2348) was noticed in seed treated with polymer (DISCO AG SP RED L-200) + Thiram + Quick roots **/ Mycorrhiza and lower vigour was seen inno polymer treatment or water + thiram. The field emergence (%) revealed that all the three polymer seed coating treatments were on par at 30 DAS (78.07 %, 77.19 % and 77.19 %) and 50 DAS (80.99 %, 80.11 % and 79.56 %) when compared to control treatment i.e., no polymer treatment or water + thiram at 30 DAS (71.68 %) and 50 DAS (71.30 %), respectively. Among the yield attributes, significant difference was observed in seed yield/plant with treatment polymer (DISCO AG SP RED L-200) + Thiram + Quick roots **/ mycorrhiza registering highest (22.20 g) yield, while the lowest (18.40 g) yield was observed in polymer untreated or water + thiram.
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Costa, Ana Alessandra da, Emanoela Pereira de Paiva, Salvador Barros Torres, Kleane Targino de Oliveira Pereira, Moadir de Sousa Leite e Francisco Vanies da Silva Sá. "Seed priming improves Salvia hispanica L. seed performance under salt stress". Acta Scientiarum. Agronomy 43 (5 de julho de 2021): e52006. http://dx.doi.org/10.4025/actasciagron.v43i1.52006.
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Salvia hispanica L. is an alternative crop cultivated by farmers who want to diversify their production. However, this species is sensitive to salinity, which affects its germination negatively. Seed priming with different attenuators is a technique with potential to mitigate the effects of salt stress. Thus, the objective of this study was to evaluate the effect of seed priming with the use of different attenuators on the germination, growth, and organic solute accumulation of S. hispanica seedlings under salt stress. The experimental design was completely randomized, with treatments distributed in a 4 × 5 factorial scheme, corresponding to four seed priming treatments and five osmotic potentials, with four replicates of 50 seeds in each treatment. The seed treatments consisted of presoaking seeds for 4h in salicylic acid, gibberellic acid, and distilled water and the control treatment, which did not involve soaking. These seeds were germinated at osmotic potentials of 0.0, -0.1, -0.2, -0.3, and -0.4 MPa, using NaCl as an osmotic agent to simulate the different salinity levels. Among all the treatments implemented, S. hispanica seed priming with salicylic acid was the most efficient in mitigating the salt stress effects.
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Guragain, Rajesh Prakash, Hom Bahadur Baniya, Suman Prakash Pradhan, Santosh Dhungana, Ganesh Kuwar Chhetri, Binita Sedhai, Niroj Basnet et al. "Impact of non-thermal plasma treatment on the seed germination and seedling development of carrot (Daucus carota sativus L.)". Journal of Physics Communications 5, n.º 12 (1 de dezembro de 2021): 125011. http://dx.doi.org/10.1088/2399-6528/ac4081.
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Abstract Seed germination is a complicated physiological process that starts with the seed absorbing water and concludes with the radicle emerging. The kinetics and amount of water uptake by seeds are known to be influenced by both seed surface properties and the surrounding environment. As a result, altering seed surface features are linked to seed medium and is a valuable strategy for controlling seed germination. In the agricultural field, non-thermal plasma surface activation of seeds is currently being investigated as an efficient pre-sowing treatment for modifying seed germination. The impact of non-thermal plasma (NTP) on the germination and seedling growth of carrot seeds at room temperature and atmospheric pressure for varied treatment times was investigated in this study. Seed’s germination properties and growth parameters were examined for both control and NTP-treated seeds. Germination-related parameters such as germination percentage, vigor index, and chlorophyll content were all improved by NTP treatment. However, no significant changes were seen in the carotenoid content. Similarly, the in-vitro radical scavenging activities, total phenol, and total flavonoid contents in the seedlings were altered by NTP treatment. Our results indicate that NTP treatment has a favorable effect on carrots germination and seedling development.
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Silva, Patrícia Pereira da, Raquel Alves de Freitas e Warley Marcos Nascimento. "Pea seed treatment for Rhizoctonia solani control". Journal of Seed Science 35, n.º 1 (2013): 17–20. http://dx.doi.org/10.1590/s2317-15372013000100002.
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The objectives of this study were to evaluate the efficiency of fungicides for pea seed treatment against damping-off caused by Rhizoctonia solani and to verify their effects on physiological seed quality. 'Mikado' pea seeds were treated with the following fungicides: Carbendazim, Carbendazim + Thiram, Captan, Iprodione, Iprodione + Thiram, Metalaxyl-M + Fludioxonil, Pencycuron, Procymidone and Tolyfluanid. Control seeds were treated with deionized water. Physiological seed quality was evaluated with the following tests: germination, first count, accelerated aging and electrical conductivity. Seeds were sown in soil inoculated and no inoculated with R. solani. The experimental design was completely random with four replications. Seedling emergence was reduced in inoculated soil and the best treatments for R. solani control were Carbendazim, Pencycuron, Iprodione and Carbendazim + Thiram. Captan reduced seed physiological quality in both the laboratory and field.
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Krnjaja, Vesna, Jelena Levic, Mirko Ivanovic, Zorica Tomic e Slavica Mrfat-Vukelic. "Incidence of fusarium species on red clover seed". Biotehnologija u stocarstvu 20, n.º 1-2 (2004): 101–8. http://dx.doi.org/10.2298/bah0402101k.
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Phytopathological investigation of seed of three commercial red clover cultivars - K9, K17 and NS Kolubara, and two pre-treatments of seeds rinsing and surface disinfection of seeds (T1) and surface disinfection of seeds (T2) have determined that frequency of species within the genus Fusarium varied from 0 to 13%. By use of T1 pre-treatment the presence of Fusarium species on the seed was observed in neither of examined cultivars. In this pre-treatment the presence of 1% Penicillium spp. was observed on seed of cultivar K17 only, while the seeds K9 and NS Kolubara were non-infected. By use of T2 pre-treatment, the frequency of Fusarium species varied from 1 to 13%, depending on cultivar. From the seeds of all three examined cultivars, Fusarium verticillioides (2-13%) and F. proliferatum (2-6%) were isolated and from the seed of cultivar K9, F. oxysporum (4%) F. solani (2%) and undetermined Fusarium species (3%) were isolated, while F. subglutinans (1%) was isolated only from the seed of NS Kolubara. Besides Fusarium species, by application of pre-treatment T2, in all examined cultivars the species from genera Cladosporium (6-14%), Alternaria (6-7%) and Acremonium (1-5%) were isolated, and Penicillium spp. (1%) from the seed of cultivar K17. The results obtained indicate that frequency of mycobiota on the seed of red clover depended more on the seed pre-treatment than on the examined cultivars. Considering the significant differences gained in health state of seed by application of T1 and T2 pre-treatments, further investigations should be directed towards the development of method which would show real health state of seed, that is, natural contamination of seed. In this case it is the use of pre-treatment T1.
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Soares, Cristiane Moi, Marcos Paulo Ludwig, Claudia Moi Soares Rother e Leticia Decarli. "Seed quality and crop performance of soybeans submitted to different forms of treatment and seed size". Journal of Seed Science 41, n.º 1 (janeiro de 2019): 69–75. http://dx.doi.org/10.1590/2317-1545v41n1210486.
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Abstract: The objective of this work was to evaluate the effect of different grain sizes and treatments in the physiological quality of seeds and performance of soybean cultures. The object of analysis were seeds from the cultivars Monsoy 5730 IPRO and Monsoy 5947 IPRO, sized 5.5 and 6.5 mm. The industrial seed treatment was carried out in lot equipment, with the products cyantraniliprole, thiamethoxam, metalaxyl, thiabendazole, and a combination of fludioxonil + polymer + talc. The conventional treatment was performed with the products cyantraniliprole, thiamethoxam, metalaxyl, thiabendazole, and fludioxonil. Part of the seeds was kept untreated (control). The experiment used a randomized block design, with four replications. The parameters assessed include the moisture content measurement, seed coating, germination, first germination count, field emergence, survival rate, and grain yield (right after the seed treatment and after 45 days of storage). The industrial treatment method produced a better seed coating. As for seed size, it had no effect on quality or grain yield. Last, the treated seeds presented the best results for emergence in field, while the industrial treatment achieved the highest productivity.
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Matthews, Graham. "Seed Treatment Challenges and Opportunities". Crop Protection 21, n.º 1 (fevereiro de 2002): 77–78. http://dx.doi.org/10.1016/s0261-2194(01)00052-7.
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Soper, Derek. "Seed treatment: challenges and opportunities". Pesticide Outlook 12, n.º 2 (2001): 55. http://dx.doi.org/10.1039/b102657g.
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Sharma, K. K., U. S. Singh, Pankaj Sharma, Ashish Kumar e Lalan Sharma. "Seed treatments for sustainable agriculture-A review". Journal of Applied and Natural Science 7, n.º 1 (1 de junho de 2015): 521–39. http://dx.doi.org/10.31018/jans.v7i1.641.
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Seed treatment refers to the application of certain agents physical, chemical or biological to the seed prior to sowing in order to suppress, control or repel pathogens, insects and other pests that attack seeds, seedlings or plants and it ranges from a basic dressing to coating and pelleting. Introduction and ban of arsenic (used from 1740 until 1808) is the key milestones in the history of modern seed treatment till then a continuous research and advancement in this technology is going on. The technological advancement prepared a roadmap for refiningexisting seed treatment technologies and future work on technologies like fluid drilling as a way to sow germinated seeds where gel can also serve as a delivery system for other materials, seed priming advances the early phase of germination without redicle emergence. Another advanced technology, solid matrix priming (SMP) has been evaluated as a means to advances the germination of seeds and serve as a carrier for useful material too. Physical and biological seed treatments alone an alternative to chemicals or in combination with a chemical treatment are being used worldwide because of their environmental safety and socioeconomic aspects. Biological seed treatments are expected to be one of the fastest growing seed treatment sectors in the near future, in part because they are easier to register at Environment Protection Agency (EPA). Lack of awareness to seed treatments at farmer’s level is one of the limiting factors in disease management and hence, efforts should be made at farmer’s level to adopt the technology. Keeping the all above facts in mind, selected seed treatment technologies with their improvement and significance will be discussed in this review.
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Gadotti, Gizele Ingrid, Raimunda Nonata O. da Silva, Cândida Renata J. de Farias, Joseano G. da Silva e Henrique L. Padão. "Fungal and seed treatment interference in the viability of coriander seeds". Horticultura Brasileira 39, n.º 4 (dezembro de 2021): 376–82. http://dx.doi.org/10.1590/s0102-0536-20210405.
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ABSTRACT The determination of the sanitary quality is important to diagnose if the commercialized lots are free of pathogens and to make a decision about the need for seed treatment. The objective was to evaluate the interference of fungi associated with coriander seed lots in their physiological performance and the effect of seed treatment with the fungicide Metalaxyl-m + Fludioxonil. The study was carried out in two steps. In experiment I, the physiological potential and sanitary characterization of 18 coriander seed lots were evaluated, using the tests, water content, tetrazolium test and health test. In experiment II, we evaluated the physiological performance of coriander seeds with and without fungicide treatment using the first count and germination test. Coriander seed lots showed high physiological potential, however, not all lots expressed their maximum potential in the germination test without treatment, due to the negative effect of fungi associated with seeds, mainly A. dauci and in association with A. alternata. There was an improvement in the physiological performance of coriander seeds treated with Metalaxyl-m + Fludioxonil fungicide.
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Herawati, N., A. R. Aisah, I. Mardian, B. N. Hidayah e B. T. R. Erawati. "Response of growth and yield of two soybean varieties to seed pre-treatment applications". IOP Conference Series: Earth and Environmental Science 883, n.º 1 (1 de outubro de 2021): 012052. http://dx.doi.org/10.1088/1755-1315/883/1/012052.
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Abstract Plant growth is influenced by seed quality. Seeds need to be treated to prevent pest and disease disorders or to increase seed germination. Soybean planting was carried out in this study by the treatment of varieties and seed pre-treatment application before planting. The study aimed to measure the growth and yield of soybeans by varieties and seed treatment before planting, carried out in the Village of Nggembe, District of Bolo, Bima Regency. The study used factorial randomized block design with two factors. The first factor was soybean varieties consisting of two levels, namely Devon and Dena varieties, and the second factor was the application of pre-planting seed treatments consisting of four levels namely Cruiser, Marshall, Agrisoy, and without seed treatment, each treatment was repeated three times. Observations were made on the performance of agronomic crops and soybean yields. The results showed that the treatment of soybean varieties and the application of seed treatment had a significant influence on plant height and soybean productivity, and both treatments had interactions on parameters of plant height, number of filled pods, weight of 100 seeds, and soybean productivity with the best results successively produced by a combination of Devon-Control, Devon-Marshall, Devon-Agrisoy, and Dena-Cruiser.
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Gurusinghe, Sunitha, Ann L. T. Powell e Kent J. Bradford. "Enhanced Expression of BiP Is Associated with Treatments that Extend Storage Longevity of Primed Tomato Seeds". Journal of the American Society for Horticultural Science 127, n.º 4 (julho de 2002): 528–34. http://dx.doi.org/10.21273/jashs.127.4.528.
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While seed priming (hydration in water or osmotic solutions followed by drying) enhances seed germination performance, the longevity of primed seeds in storage often is reduced. Postpriming treatments including a reduction in seed water content followed by incubation at 37 or 40 °C for 2 to 4 h can substantially restore potential longevity in tomato (Lycopersicon esculentum Mill.) seeds. These conditions might induce heat-shock proteins (hsp) that could be involved in the extension of seed longevity. The abundance of BiP (78 kD Binding Protein), hsp70 and class I small hsp in primed seeds subjected to postpriming treatments was examined to assess this possibility. BiP mRNA and protein amounts increased during postpriming heat treatments that extended longevity of tomato seeds. Treatment of primed seeds with the calcium ionophore calcimycin (A21387) enhanced BiP protein accumulation in the absence of heat treatment and also extended potential seed longevity. Changes in the abundance of hsp70 and class I small hsps were not consistently associated with potential seed longevity. Thus, enhanced BiP expression may contribute to the improved longevity of primed seeds following postpriming treatments.