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Academic literature on the topic 'Seed coatings'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Seed coatings"

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Afzal, Irfan, Talha Javed, Masoume Amirkhani, and Alan G. Taylor. "Modern Seed Technology: Seed Coating Delivery Systems for Enhancing Seed and Crop Performance." Agriculture 10, no. 11 (November 5, 2020): 526. http://dx.doi.org/10.3390/agriculture10110526.

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The objective of modern seed-coating technology is to uniformly apply a wide range of active components (ingredients) onto crop seeds at desired dosages so as to facilitate sowing and enhance crop performance. There are three major types of seed treating/coating equipment: dry powder applicator, rotary pan, and pelleting pan with the provisions to apply dry powders, liquids, or a combination of both. Additional terms for coatings produced from these types of equipment include dry coating, seed dressing, film coating, encrustments, and seed pelleting. The seed weight increases for these different coating methods ranges from <0.05% to >5000% (>100,000-fold range). Modern coating technology provides a delivery system for many other materials including biostimulants, nutrients, and plant protectants. This review summarizes seed coating technologies and their potential benefits to enhance seed performance, improve crop establishment, and provide early season pest management for sustainable agricultural systems.
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Amirkhani, Masoume, Hilary S. Mayton, Anil N. Netravali, and Alan G. Taylor. "A Seed Coating Delivery System for Bio-Based Biostimulants to Enhance Plant Growth." Sustainability 11, no. 19 (September 26, 2019): 5304. http://dx.doi.org/10.3390/su11195304.

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A novel delivery method for the application of bio-based biostimulants as seed coatings was developed using different sources of liquid and powder forms of vermicompost and soy flour. Micronized vermicompost (MVC) and soy flour (SF) were mixed in different combinations as dry seed coating blends and applied using rotary pan seed coating equipment. The physical properties of coated seeds were measured, and as binder concentration increased, coating strength increased. The rates and percentages of germination of the newly developed coating formulations of SF+MVC did not decrease the germination parameters and were not significantly different than the control. However, the SF, SF with concentrated vermicompost extract, and SF + MVC from dairy manure increased the seedling vigor index by 24, 30, and 39 percent, respectively, compared to the control. Plant biometric parameters and nitrogen uptake per plant were also significantly higher for SF and SF+MVC coated seeds than the control, in a greenhouse environment. This is the first seed coating study to show an enhancement of plant growth with vermicompost, and vermicompost in combination with a plant-based protein that serves as a dry seed coating binder and biostimulant, respectively. Seed coatings developed in this study can serve as a model for development of the delivery systems of seeds for the application of bio-based biostimulants to enhance early plant growth.
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Taylor, A. G., P. S. Allen, M. A. Bennett, K. J. Bradford, J. S. Burris, and M. K. Misra. "Seed enhancements." Seed Science Research 8, no. 2 (June 1998): 245–56. http://dx.doi.org/10.1017/s0960258500004141.

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AbstractSeed enhancements may be defined as post-harvest treatments that improve germination or seedling growth, or facilitate the delivery of seeds and other materials required at the time of sowing. This definition includes three general areas of enhancements: pre-sowing hydration treatments (priming), coating technologies and seed conditioning. Pre-sowing hydration treatments include non-controlled water uptake systems (methods in which water is freely available and not restricted by the environment) and controlled systems (methods that regulate seed moisture content preventing the completion of germination). Three techniques are used for controlled water uptake: priming with solutions or with solid particulate systems or by controlled hydration with water. These priming techniques will be discussed in this paper with reference to methodology, protocol optimization, drying and storage. Coating technologies include pelleting and film coating, and coatings may serve as delivery systems. Seed conditioning equipment upgrades seed quality by physical criteria. Integration of these methods can be performed, and a system is described to upgrade seed quality in Brassica that combines hydration, coating and conditioning. Upgrading is achieved by detecting sinapine leakage from nonviable seeds in a coating material surrounding the seeds. Seed-coat permeability directly influences leakage rate, and seeds of many species have a semipermeable layer. The semipermeable layer restricts solute diffusion through the seed coat, while water movement is not impeded. Opportunities for future seed enhancement research and development are highlighted.
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Amirkhani, Masoume, Anil N. Netravali, Wencheng Huang, and Alan G. Taylor. "Investigation of Soy Protein–based Biostimulant Seed Coating for Broccoli Seedling and Plant Growth Enhancement." HortScience 51, no. 9 (September 2016): 1121–26. http://dx.doi.org/10.21273/hortsci10913-16.

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This research presents a novel method of using plant-derived protein hydrolysates as seed coating materials. The objective of this study was to develop seed coating formulations using soy flour, a sustainable, inexpensive, and green source, as a biostimulant using broccoli as the model system. A 10% suspension of soy flour was used as the seed treatment binder in all coatings. The solid particulate filler was composed of mixtures of soy flour, cellulose, and diatomaceous earth, together termed as SCD. All SCD components were homogenized in water, then dried and ground to a fine particle size <106 µm. The SCD coatings were applied with rotary pan seed coating equipment at 25% of the seed weight. Increasing the proportion of soy flour increased the seed coating strength and also the time for the coating to disintegrate after soaking in water. As a result, the seed coatings reduced the percentage germination and the germination rate compared with the nontreated control. However, the 10-day-old seedling root and shoot growth showed significant improvement for all SCD coating treatments compared with controls. Plant growth and development was also measured after 30 days in the greenhouse. Fresh weight (FW) and dry weight (DW), leaf area, plant height, leaf development, Soil-Plant Analyses Development (SPAD) index (chlorophyll measurement), and nitrogen (N) per plant were all greater from coatings with 30%, 40%, and 50% soy flour than the noncoated control. Nitrogen, from the soy flour applied in the seed coatings, ranged from 0.024 to 0.073 mg per seed, while the enhanced N per plant ranged from 1.7 to 8.5 mg. The coating treatment with 0.063 mg N per seed resulted in the greatest plant leaf area and highest N content. Nitrogen applied in the seed coating only accounted for 1% to 2% of the enhanced N in the plants, indicating the soy flour acted as a biostimulant rather than a fertilizer.
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Jarecki, Wacław. "Physiological Response of Soybean Plants to Seed Coating and Inoculation under Pot Experiment Conditions." Agronomy 12, no. 5 (April 30, 2022): 1095. http://dx.doi.org/10.3390/agronomy12051095.

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Improved seeds are increasingly being sown in agricultural practice. Such treatments play different roles depending on the substances used. They most often protect seeds and sprouts from abiotic and biotic stresses, but not only. Coating technology is one of the methods of seed improvement, requiring the selection of appropriate components. The purpose of the pot experiment was to test the efficacy of two coatings (C and D) and a commercial inoculant (B) applied to soybean seeds (cultivar Mavka). It was shown that the best option was the combined use of coating and inoculation (C + B or D + B). A significantly higher number of germinated seeds, nodulation, green fodder mass, green fodder protein content, and some physiological parameters of plants were obtained compared to control (A). Applying only the tested coatings (C or D) resulted in the lack of nodulation on roots and slight changes in plant physiological parameters. Sowing seeds with inoculant (B) or control seeds (A) accelerated plant emergence but reduced the number of properly formed sprouts compared to coated seeds. The results confirmed that the tested soybean seed coatings were effective, but in combination with inoculation.
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Richardson, M. D., and K. W. Hignight. "Seedling Emergence of Tall Fescue and Kentucky Bluegrass, as Affected by Two Seed Coating Techniques." HortTechnology 20, no. 2 (April 2010): 415–17. http://dx.doi.org/10.21273/horttech.20.2.415.

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Seed coating has been effectively used in the agricultural and horticultural industries for over 100 years. Recently, several turfgrass seed companies have been applying seed coating technologies to commercial seed lines, but there have been limited studies that have demonstrated a positive benefit of seed coating to turfgrass seed. The objective of this study was to determine the effects of two commercially available seed coating technologies, including a fungicide/biostimulant coating and a starch-based polymer coating, on tall fescue (Festuca arundinaceae) and kentucky bluegrass (Poa pratensis) in three soil types. Coated seeds were obtained from a retail outlet. Non-coated seed samples were developed by removing the coating from the seed just before planting. Neither coating technology had an effect on tall fescue speed of germination or total germination percentage in any of the soil types. Seed coating did have a positive effect on the speed of germination of kentucky bluegrass in a sandy loam soil, but did not improve the speed of germination or percentage emergence in the other soil types. These results support earlier findings that seed coating has minimal effects on establishment of turfgrass species. However, these coatings may provide benefits when attempting to establish turfgrasses in less than ideal conditions.
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Korbecka-Glinka, Grażyna K., Maria Wiśniewska-Wrona, and Ewa Kopania. "The use of natural polymers for treatments enhancing sowing material." Polimery 66, no. 1 (January 20, 2021): 11–20. http://dx.doi.org/10.14314/polimery.2021.1.2.

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Biopolymers from a group of polysaccharides are used in treatments enhancing sowing material of crops due to their physical and chemical properties, susceptibility to chemical modification, biodegradability and high bioactivity. Natural polymers, such as: chitosan, alginian, celulose, galaktoglucomannans, lignin and gellan gum, can be used as binders in seed coating or carriers of active substances and microorganisms. Moreover, biopolymers contained in the seed coatings and seed dressings can protect germinating seeds from unfavorable influence of environment and pathogens.
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Scott, James M. "Delivering Fertilizers Through Seed Coatings." Journal of Crop Production 1, no. 2 (November 24, 1998): 197–220. http://dx.doi.org/10.1300/j144v01n02_08.

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Friuli, Marco, Paola Nitti, Luca Cafuero, Alessia Prete, Muhammad Shajih Zafar, Marta Madaghiele, and Christian Demitri. "Cellulose Acetate and Cardanol Based Seed Coating for Intraspecific Weeding Coupled with Natural Herbicide Spraying." Journal of Polymers and the Environment 28, no. 11 (July 14, 2020): 2893–904. http://dx.doi.org/10.1007/s10924-020-01821-9.

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Abstract Agricultural pesticides can become persistent environmental pollutants and their use is destined to be reduced. Consequently, weed control is shifting to green products and strategies. A combined approach, made of pelargonic acid based herbicide spraying and interspecific competition (i.e. seeding of plants species competing for growth against weeds) could boost the weeding effect. In case of the contemporary seeding and spraying, needed to reduce costs, seed coating is necessary as barrier to herbicide toxic effects but, at the same time, the coating has to be endowed with the right features to allow germination. This work aims to verify the feasibility of using cellulose acetate/cardanol (CA/Card) as seed coating polymer–plasticizer blend and to identify possible relationship between material features and germination rate. For these purposes, untreated and pelargonic acid herbicide treated coated seeds coated through solvent evaporation methods (CA/Card ratios from 0/0 to 100/0) were subjected to germination test. Coatings were characterized through SEM, EDX, media uptake, DSC and mechanical analysis with and without conditioning in seeding conditions. Germination test showed that 70/30 seeds, treated and untreated with herbicide, presented the best germination rate. Germination assays showed that coating presence reduced and slowed (without stopping) seeds germination equally with and without herbicide treatment. Consequently, was possible to conclude that CA/Card coatings allowed germination and presented a barrier effect against herbicide. Thus coating resulted suitable for seed coating in herbicide spraying/interspecific combined applications. No strong correlations were found between material features and germination, but it is plausible to hypothesize that both water absorption and mechanical properties of the coating play an important role and have to be optimized to improve germination rate avoiding difficulty in sprouting. Finally, the study opened a new perspective in the use of cellulose acetate for seed coating from waste sources such as cigarette filters. Graphic Abstract
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Jarecki, Wacław, and Justyna Wietecha. "Effect of seed coating on the yield of soybean Glycine max (L.) Merr." Plant, Soil and Environment 67, No. 8 (August 12, 2021): 468–73. http://dx.doi.org/10.17221/246/2021-pse.

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Enhanced seeds, e.g. dressed, encrusted or pelleted seeds, are often sown in agricultural practice. These treatments play a different role depending on the type and chemical composition of the preparation. The aim of the experiment was to compare the effectiveness of three coatings (B – chitosan, C – chitosan + alginate/jojoba oil/E and D – chitosan + alginate/PEG) applied to soybean seeds in comparison to control (A). The study was carried out in three cultivars: Annushka, Mavka and Smuglyanka. The coatings did not differentiate seed yield in 2018 due to favourable weather conditions. The use of coating D in the following years increased seed yield by 0.46 t/ha in 2019 and by 0.51 t/ha in 2020 compared to control. The obtained results allow concluding that coating D was the most effective in soybean cultivation. The field emergence capacity, plant density as well as the SPAD (soil plant analysis development) and LAI (leaf area index) indices were significantly increased compared to control as a result of this coating application. The g<sub>s</sub> index (stomatal leaf conductance) was significantly reduced. The cv. Smuglyanka yields were significantly higher compared to cvs. Mavka and Annushka, by 0.32 t/ha and 0.85 t/ha, respectively. The difference in seed yield between 2018 and 2019 was 0.81 t/ha.
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Dissertations / Theses on the topic "Seed coatings"

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Morrison, Benjamin Anthony. "Assessing Potential Solutions to Mitigate Pollution from Neonicotinoid Seed Coatings." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/101049.

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Thiamethoxam and clothianidin are two neonicotinoids used in seed coatings for crops such as corn and soybeans. Both neonicotinoids have high solubility in water, so they are prone to transport via leaching and runoff. This thesis is comprised of two studies that evaluated potential solutions to mitigate neonicotinoid transport from fields. The first study examined the relationship between soil organic carbon content and neonicotinoid transport in a field planted in soybeans. Soils with increased organic carbon leached less thiamethoxam and clothianidin during early growing season leaching peaks; however, at the end of the season, higher organic carbon content only decreased leached mass of clothianidin. The second study was to determine neonicotinoid uptake of different ground covers used as cover crops or edge-of-field buffer strips, as well as the partitioning of thiamethoxam and clothianidin throughout the plants. Ground covers, such as crimson clover, had the highest recovery of applied thiamethoxam, meaning that it may be a good candidate to retain this pesticide in fields. Thiamethoxam and clothianidin concentrations were higher in leaf tissues than in stems or roots, indicating that above-ground biomass removal may be an effective way to reduce neonicotinoid loading in the environment. From these studies, I concluded 1) practices that raise the amount of organic carbon in the soil may help decrease early-season neonicotinoid transport, resulting in lower concentrations in surrounding waterways, and 2) careful selection of plant species, such as crimson clover, may help reduce neonicotinoid transport in the environment, while potentially reducing exposure to beneficial insects.
Master of Science
Pesticides called neonicotinoids are commonly applied to seeds in row crops, such as corn and soybeans, before they are planted. These pesticides are highly soluble in water, which can lead to them exiting fields through runoff or leaching. This thesis is comprised of two studies that examined several potential solutions for decreasing the amount of neonicotinoids available for transport. The first study examined the relationship between organic carbon in the soil and neonicotinoids, and whether this relationship helps to retain neonicotinoids in a soybean field. Soils with high organic carbon content decreased the amount of neonicotinoids exiting the field during early growing season storms; however, at the end of the season, high organic carbon content only decreased losses for one of the pesticides studied. The second study was to determine which of six plant species and two mixes used as cover crops or buffers were the most effective at removing neonicotinoids from soil, as well as where in the plant these neonicotinoids go after uptake. Ground covers, such as crimson clover, had the highest recovery of applied neonicotinoids, meaning they would be good candidates for planting around fields. Ultimately, neonicotinoid accumulation was higher in leaves than in stems or roots, meaning that removing and disposing of leaves in an environmentally safe way could be an effective way to decrease neonicotinoid pollution. From these two studies, I found that 1) increasing organic matter in the soil can stop neonicotinoids from exiting the area it was applied in, and 2) careful consideration of plant species in or around the field may help intercept neonicotinoids before they exit the field.
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Pellegrene, Brittany Ann. "Modification of Alkyd Resins and Seed Oil Based Reactive Diluents for High Performance Coatings." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1560887968530216.

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Agyepong, Andoh-Baidoo Rosemarie. "SPECTROSCOPIC CHARACTERIZATIONS OF THE COMPOUND II INTERMEDIATE OF SOYBEAN PEROXIDASE FROM SOYBEAN SEED COATINGS." VCU Scholars Compass, 2009. http://scholarscompass.vcu.edu/etd/20.

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Spectroscopic characterization of ferric soybean peroxidase with peroxides were studied to determine the ligand coordination and to characterize the structure of the heme active site and its intermediates (ferryl species). The lifetime, chemical reactivity and distinctive colors of the ferryl species (FeIV) formed during the oxidation of peroxidase (FeIII) by peroxides enabled structure, dynamics and reaction mechanisms to be studied. Resonance Raman spectroscopy was used as a means of characterizing the structure of the soybean peroxidase and its intermediates. Excitation in the Soret absorption band at 406.7nm with 2-5mW laser power was used for this study. Resonance Raman spectra in the 200 to 1700 cm-1 region were obtained for the soybean peroxidase. However, the focus of this study was on the vibrational region of the resonance Raman spectra from 900 to 500cm-1 where the FeIV=O stretching frequencies for heme compound II intermediates are expected. Several pH and pD (deuterium substitution) samples of the soybean peroxidase were analyzed using resonance Raman spectroscopy. The vibrational stretching frequencies of the ferryl peroxidases varied with varying pH/pD were observed within the 773–787cm-1 range. From the deuterium experiment, accompanied with changes in the vibrational frequencies of the iron-ligand, a 3cm-1 upshift and intense resonant enhancement of the peaks, we observed the ferryl nature of compound II intermediate for soybean peroxidase. Badger’s rule was used to estimate the bond distances that existed within Fe-O which offers additional insight into the structure of the ferryl species. The estimated bond distance for the soybean peroxidase was significantly less than Fe-O bond distances proposed by X-ray crystallographers for other peroxidases in the same family. Comparing the vibrational frequencies of the ferryl intermediates in soybean peroxidase to that in heme proteins portrayed the effect the protein environment has on the vibrational frequencies.
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Ries, Patrick Verfasser], Matthias [Akademischer Betreuer] Wuttig, and Dieter [Akademischer Betreuer] [Mergel. "Silver thin films : improving the efficiency of low-E coatings by employing different seed layers / Patrick Ries ; Matthias Wuttig, Dieter Mergel." Aachen : Universitätsbibliothek der RWTH Aachen, 2015. http://d-nb.info/1126971634/34.

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Ries, Patrick [Verfasser], Matthias Akademischer Betreuer] Wuttig, and Dieter [Akademischer Betreuer] [Mergel. "Silver thin films : improving the efficiency of low-E coatings by employing different seed layers / Patrick Ries ; Matthias Wuttig, Dieter Mergel." Aachen : Universitätsbibliothek der RWTH Aachen, 2015. http://d-nb.info/1126971634/34.

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Taylor, Justin Blake. "Deterring Rodent Seed Predation Using Seed-Coating Technologies." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/9045.

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With many natural landscapes undergoing restoration efforts, there is a growing need for the optimization of direct seeding practices. Seeds planted on wildlands are often consumed by rodents leading to reduced plant establishment. Coating seeds in rodent aversive products may prevent seed predation. We tested ten seed-coating formulations containing products expected to deter rodents, namely: ghost and cayenne pepper powders; essential oils from bergamot, neem, and pine; methyl-nonyl-ketone, anthraquinone, activated carbon, beta-cyclodextrin and a blank coating containing no rodent deterrents to serve as a control treatment. Each treatment was applied to Pseudoroegneria spicata (bluebunch wheatgrass) seeds. These seeds germinated similarly to uncoated control seeds unless the coating contained methyl-nonyl-ketone which reduced germination. Seeds were offered to Ord's kangaroo rats (Dipodomys ordii) that strongly avoided the treatments in favor of uncoated control seeds. Notably, the blank coating, lacking active ingredients, still elicited 99% avoidance. However, these results indicated behavior when alternative food sources are readily available, a scenario rare in nature. To address this, a second feeding experiment was conducted to observe D. ordii's behavior under calorie-restricted conditions. D. ordii were subjected to a fast period and then offered only one treatment. Under these conditions, many subjects chose to consume coated seeds, but to a lesser degree than subjects offered control seeds. Seeds coated in ghost pepper, neem oil, and activated carbon reduced consumption by 47-50%. Given these lab results, we would expect these seed-coatings to increase the establishment of native seeds following the direct seeding of wildlands by deterring rodent seed-predation.
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Stendahl, Fredrik. "Seed coating for delayed germination : a tool for relay cropping of annual crops /." Uppsala : Department of Ecology and Crop Production Science, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/9884068.pdf.

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Benatto, Junior João Carlos. "Qualidade fisiológica de sementes de soja tratadas com fungicida e recobertas com polímeros." Universidade Federal de Pelotas, 2008. http://repositorio.ufpel.edu.br/handle/ri/1464.

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Made available in DSpace on 2014-08-20T13:44:41Z (GMT). No. of bitstreams: 1 dissertacao_joao_carlos_benatto_jr.pdf: 93588 bytes, checksum: 357cf23c63a8a8f690a9bf4dd7d3511a (MD5) Previous issue date: 2008-05-06
The use of polymers in soybean seeds has been accomplished with the purpose of incorporating products like insecticides, fungicides, growing substances, minor fertilizers and so on, in order to improve the visual aspect of the seed, to promote smaller operator's intoxication risk and to provide a better seeds' acting and seedlings after sowing. The main objective of this work was to evaluate the recovered seeds' effects in soybeans seed quality lots of high and low germination of the cv. AG 7000. The seed's film coating was accomplished with two commercial marks of polymers, LABORSAN ® , and LANXESS ® , in doses of 2 and 3,5 ml for each kg with and without mixture of the fungicide Carbendazim + Thiram (firewalk ® ). The seeds' quality evalutions, were measured by the germination test, germination in sand and accelerated aging. The use of polymers in soybean seeds provides seeds with good appearance and coloration and can be applied to differentiate the seed from the commercial grain. The fungicide and the polymers do not affect the physiological quality of soybean seed. The results of the polymers and fungicide were superior in the test of accelerated aging, showing higher germination in relation to the check treatment.
O uso de polímeros em sementes de soja vem sendo realizado com a finalidade de incorporar produtos fitossanitários, melhorar o aspecto visual da semente, promover menor risco de intoxicação do operador e proporcionar um melhor desempenho de sementes e plântulas após a sua semeadura. O objetivo principal deste trabalho foi avaliar o efeito do recobrimento na qualidade de semente de soja de alta e baixa germinação da cv. AG 7000. O revestimento foi realizado com duas marcas comerciais de polímeros, LABORSAN ® , e LANXESS ® , nas doses de 2 e 3,5 mL para cada kg de semente com e sem mistura do fungicida Carbendazim + Thiram (firewalk ® ). As avaliações da qualidade das sementes foram realizadas por meio do teste de germinação, germinação em substrato de areia e envelhecimento acelerado. O uso de polímeros na semente de soja proporciona sementes com boa aparência e coloração, podendo ser aplicado para diferenciar a semente do grão comercial. O fungicida e o polímero não prejudicam a qualidade fisiológica da semente de soja. Os resultados do polímero e fungicida foram superiores no teste de envelhecimento acelerado, apresentando maior percentual de germinação em relação à testemunha.
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Parkinson, Morgan Elaine. "Developing Rangeland Restoration Techniques: A Look at Phosphorus Fertilizer as a Seed Coating to Improve Bluebunch Wheatgrass Growth." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/9171.

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Planting native species after a major disturbance is a critical tool land managers use to stabilize soils, restore ecosystem processes, and prevent weed invasion. However, within the sagebrush steppe and other arid and semi-arid environments the percentage of sown seeds that produce an adult plant is remarkably low. Applying fertilizers at the time of planting may improve native plant establishment by increasing the ability of the seedlings to cope with environmental stresses. However, traditional fertilizer applications are often economically infeasible and may be counterproductive by encouraging weed invasion. Seed coating technology allows for the efficient application of fertilizers within the microsite of the seeded species. The objective of our research was to determine the optimal rate of fertilizer to apply to the seed to improve seedling emergence and plant growth. We applied a phosphorus (P) rich fertilizer (0.13 g P g-1) to bluebunch wheatgrass (Pseudoroegneria spicata (Pursh) Á. Löve) seeds in a rotary coater at rates ranging from 0 to 50 g of fertilizer 100 g-1 seed. Three separate studies were conducted to test germination, biomass, relative growth rate, and tissue nutrient uptake. Study one showed decreasing root and shoot biomass and increasing time to 50% germination as fertilizer rates increased. Study two showed no difference in relative growth rate between the controls and fertilizer treatments. Study three showed no difference in root and shoot biomass or nutrient concentration between treatments except in the lowest fertilizer treatment (10 g fertilizer 100 g-1 seed), which was significantly lower in root and shoot biomass than all other treatments but had higher P tissue concentrations than all other treatments. Collectively these results showed no evidence that a P fertilizer coating could aid in bluebunch wheatgrass seedling establishment. Because bluebunch wheatgrass and similar late-seral plants have evolved with low nutrient requirements they may not be physiologically capable of handling increased nutrient supply, which may explain the results of our studies. Continued studies and fieldwork need to be performed to evaluate the potential of fertilizer seed coatings in restoration efforts.
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Emídio, Marlene Rodrigues. "Avaliação da utilização de argila negra na produção de seed balls em contexto climático mediterrânico." Master's thesis, Universidade de Évora, 2021. http://hdl.handle.net/10174/29229.

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O restauro ecológico tornou-se imprescindível devido à tendência crescente do uso do solo e constitui um objectivo particularmente desafiador na bacia do Mediterrâneo. As seed balls são uma técnica de restauro pouco estudada cientificamente, particularmente em climas áridos. Pretendeu-se testar o potencial germinativo em seed balls produzidas com diferentes percentagens de argila negra (25%-100%), uma argila com elevado teor de matéria orgânica considerada um desperdício da indústria das cerâmicas, em contexto mediterrânico. Avaliou-se a germinação de seis espécies com sementes de volumes diferentes (pequeno, médio e grande) em três regimes de rega (seco, intermédio e húmido). Sementes pequenas e médias germinaram melhor com 25% de argila negra e sementes grandes germinaram melhor com 50-75% de argila negra. As seed balls podem ser usadas em clima mediterrânico e reaproveitando a argila negra de barreiros portugueses. O ajustamento do tamanho das seed balls à dimensão das sementes deverá constituir o próximo passo; Abstract: Ecological restoration has become essential due to the growing trend in land use and is a particularly challenging goal in the Mediterranean basin. Seed balls are a restoration technique that hasn’t been scientifically studied, particularly in arid climates. It was intended to test the germinative potential in seed balls produced with different percentages of black clay (25% -100%), a clay with high content of organic matter considered a waste in ceramics industry, in Mediterranean context. The germination of six species with seeds of different volumes (small, medium and large) was evaluated in three irrigation regimes (dry, intermediate and wet). Small and medium seeds germinated better with 25% black clay and large seeds with 50-75% black clay. Seed balls can be used in a Mediterranean climate and reusing the black clay of Portuguese clay. Adjusting the size of seed balls to the size of the seeds should be the next step.
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Books on the topic "Seed coatings"

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Thompson, D. J. Effects of commercial seed coating on alfalfa establishment in interior British Columbia. [Ottawa]: Research Branch, Agriculture Canada, 1990.

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Petch, Geoffrey M. The implications of microfloral changes resulting from seed priming and film-coating during the process engineering of vegetable seeds. Birmingham: University of Birmingham, 1989.

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Ma, Ying, and Helena Freitas. Microbial Seed Coatings. Elsevier Science & Technology Books, 2021.

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Ma, Ying, and Helena Freitas. Microbial Seed Coatings. Elsevier Science & Technology, 2022.

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Lloyd, John, and Gerald M. Bennett. Seed Inoculation Coating and Precision Pelleting. Taylor & Francis Group, 2020.

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Effects of seed coating on forage legume establishment in Minnesota. St. Paul, Minn: Minnesota Agricultural Experiment Station, University of Minnesota, 1988.

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Henning, Ademir Assis. Polymeric coatings to improve the storage life of soybean seeds. 1990.

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Lloyd, John, and Gerald M. Bennett. Seed Inoculation, Coating and Precision Pelleting: Science, Technology and Practical Applications. Taylor & Francis Group, 2015.

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Lloyd, John, and Gerald M. Bennett. Seed Inoculation, Coating and Precision Pelleting: Science, Technology and Practical Applications. Taylor & Francis Group, 2015.

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Lloyd, John, and Gerald M. Bennett. Seed Inoculation, Coating and Precision Pelleting: Science, Technology and Practical Applications. Taylor & Francis Group, 2015.

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Book chapters on the topic "Seed coatings"

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Greene, Larry, and Natarajan Balachander. "Temperature-Triggered Permeability of Capsules and Seed Coatings." In Controlled-Release Delivery Systems for Pesticides, 245–61. Boca Raton: Routledge, 2023. http://dx.doi.org/10.1201/9781315140353-14.

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Wang, Juan, and Chuan Jiang. "Automatic Control System of Seed Pelletizing Coating Machine." In Application of Intelligent Systems in Multi-modal Information Analytics, 58–63. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-74814-2_8.

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Lambert, A., D. Le Rudulier, L. Gouzou, J.-P. Vergneau, and M. Bazin. "Alfalfa Seed Coating with Sinorhizobium meliloti and Desiccation Stress Tolerance." In Biological Nitrogen Fixation for the 21st Century, 524. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5159-7_334.

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Madsen, Matthew D., Daniel L. Zvirzdin, Bruce A. Roundy, and Stanley J. Kostka. "Improving Reseeding Success after Catastrophic Wildfire with Surfactant Seed Coating Technology." In Pesticide Formulation and Delivery Systems: 33rd Volume, “Sustainability: Contributions from Formulation Technology”, 44–55. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2014. http://dx.doi.org/10.1520/stp156920120181.

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Zhong, Ling, Yongchun Chen, Michael Tate, and Zeyu Zhong. "A New Film-Forming Agent Used to Improve Seed Coating Application Performance." In Pesticide Formulation and Delivery Systems: 41st Volume, Formulation and Application Challenges of Diverse Agricultural Agrochemicals, 110–18. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2022. http://dx.doi.org/10.1520/stp164120210058.

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Wu, Zhansheng, Lixia Yao, Imdad Kaleem, and Chun Li. "Application Efficacy of Biological Seed Coating Agent from Combination of PGPR on Cotton in the Field." In Advances in Intelligent and Soft Computing, 903–10. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27537-1_107.

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Zaher, Oumaima, Manal Mhada, Marwa El Graoui, Augustine T. Zvinavashe, Lamfeddal Kouisni, and Benedetto Marelli. "Plant Microbiome Modulation Through Seed Coating: A Novel Approach for a Smart and Efficient Microbial Delivery." In Microbial Cross-talk in the Rhizosphere, 213–34. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9507-0_9.

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Halecky, Alan, Ning Ren, Jie Lu, Jane Q. Wang, and Frances E. Lockwood. "Correlation of the Mechanical Properties of Seed Coating Films and Dust-Off, Flowability, and Plantability Tests." In Pesticide Formulation and Delivery Systems: 36th Volume, Emerging Trends Building on a Solid Foundation, 183–201. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2016. http://dx.doi.org/10.1520/stp159520160082.

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Faisal, Nadimul, Ömer Necati Cora, Muhammed Latif Bekci, Romana Ewa Śliwa, Yehuda Sternberg, Shashank Pant, Richard Degenhardt, and Anil Prathuru. "Defect Types." In Structural Health Monitoring Damage Detection Systems for Aerospace, 15–72. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72192-3_3.

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AbstractThis chapter provides an overview of the common types of defects found in various structural materials and joints in aircraft. Materials manufacturing methods (including large-scale production) have been established in the aircraft industry. However, as will be seen in this chapter, manufacturing defects and defects during in-service conditions are very common across all material types. The structural material types include metals, composites, coatings, adhesively bonded and stir-welded joints. This chapter describes the defect types as a baseline for the description of their detection with the methods of Chap. 10.1007/978-3-030-72192-3_5 to 10.1007/978-3-030-72192-3_8. Based on the understanding of the defect types, there is great expectation for a technical breakthrough for the application of structural health monitoring (SHM) damage detection systems, where continuous monitoring and assessment with high throughput and yield will produce the desired structural integrity.
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Belesky, D. P., J. M. Fedders, and R. J. Wright. "Coating birdsfoot trefoil (Lotus corniculatus L.) seed with CaCO3 and rock phosphate: Early seedling development in controlled environments." In Plant-Soil Interactions at Low pH, 655–61. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3438-5_74.

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Conference papers on the topic "Seed coatings"

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Burris, J. S. "Seed Coatings to Improve Seed Performance, Reduce Pesticide Usage and as Production Tools in Soybeans and Corn." In Proceedings of the 1992 Crop Production and Protection Conference. Iowa State University, Digital Press, 1994. http://dx.doi.org/10.31274/icm-180809-455.

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Popa, Irina, Cristian Petcu, and Alexandrina Muresanu. "SUNFLOWER SEED SHELLS AND SHEEP WOOL, STARTING POINTS FOR INNOVATIVE COATINGS WITH THERMAL INSULATION CHARACTERISTICS." In 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021. STEF92 Technology, 2021. http://dx.doi.org/10.5593/sgem2021/6.1/s26.54.

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Hermanek, F. J. "Self-Bonding, Exothermically Reactive MCrAlY Composites for Abradable-Clearance Control Coatings." In ITSC 2000, edited by Christopher C. Berndt. ASM International, 2000. http://dx.doi.org/10.31399/asm.cp.itsc2000p0603.

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Abstract Ni+Al, Ti+Al, NiCr+AI, and Cr+Al powders react exothermically in the heat zone of thermal spraying systems. Whether such reactions occur between aluminum and superalloy powders is the underlying question of this study. This paper describes composites of this nature and their sprayability to form adherent, metallurgically bonded deposits. Through parametric manipulation, coatings can be produced with a range of properties from dense to open (porous/abradable) structures. The paper also shows how seed particles can be clad with aluminum and sprayed to predictable property limits.
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Hai Yang, JunFa Wang, TianLu Wei, and WeiWei Sun. "Study and application of seed-coating." In 2011 International Conference on New Technology of Agricultural Engineering (ICAE). IEEE, 2011. http://dx.doi.org/10.1109/icae.2011.5943771.

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Bielawski, Kevin S., and Nathan J. Sniadecki. "Cellular Traction Forces Measured With Microposts Made by Hot Embossing of Polystyrene." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14568.

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Polydimethylsiloxane (PDMS) has become a highly utilized tool to study the forces that cells generate, although, outside of lab on chip devices, it is not widely used and requires protein coatings to encourage cell adhesion1. Furthermore, PDMS suffers from changes in composition and stiffness with different curing conditions2. Alternatively, polystyrene is a common substrate that promotes cell adhesion and has mostly consistent properties; however, polystyrene is typically challenging to form without special equipment and expensive molds. Previously, a hot embossing method3 has been proposed to manufacture polystyrene devices using a PDMS negative mold and polystyrene chips. A moderate amount of pressure and temperatures above the glass transition temperature of polystyrene enable the polystyrene to flow into the mold. In this paper, we fabricate microposts out of polystyrene and successfully seed cells on top of the posts.
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Han, Wei, Junfeng Yang, Guang Wu, Xing Wang, Pu Ke, and Shesheng Zhang. "Green cucumber seed coating using grey theory model." In 2011 International Conference on Grey Systems and Intelligent Services (GSIS 2011). IEEE, 2011. http://dx.doi.org/10.1109/gsis.2011.6044151.

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Nuutinen, Laura H., Minna S. Tiainen, Mika E. Virtanen, and Risto S. Laitinen. "Coatings on Bed Particles From FB-Combustion of Different Biomasses." In 17th International Conference on Fluidized Bed Combustion. ASMEDC, 2003. http://dx.doi.org/10.1115/fbc2003-008.

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The FB-combustion of several biomass fuels (bark, wood in different forms, biosludge, chicken litter, REF and forest residue) with different bed materials (quartz, natural sand, and recently introduced GR Granule) has been studied in this work. The bed samples have been collected during the laboratory, pilot, and full scale tests. The chemical composition of the coating layers and agglomerates were characterized by SEM-EDX. Line scans, point analyses, and X-ray maps were used to characterize the coating layers further. It was observed that the chemical composition of the coating of the bed particles depends both on the fuel type and on the bed material. The thickness of coating layers was also dependent on fuel and combustion history. The coatings were often seen to contain several superimposed layers. The innermost layer mainly contained alkali silicates, whereas the outermost layer was calcium-rich or magnesium-rich. In some cases the coating layers seem to protect the bed particles from agglomeration.
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Memme, Silvio, and James S. Wallace. "The Influence of Thermal Barrier Coating Surface Roughness on Spark-Ignition Engine Performance and Emissions." In ASME 2012 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icef2012-92078.

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The separate effects on heat transfer of 1) piston crown surface finish and 2) the use of a metal based thermal barrier coating (MTBC) on the piston crown of a spark ignition (SI) engine were quantified through experimental analysis in a single cylinder CFR engine. Measured engine parameters such as power, fuel consumption, emissions and cylinder pressure were used to identify the effects of the coating and its surface finish. Two piston coatings were tested: a baseline copper coating and a metal-based thermal barrier coating. Each coating was tested at multiple surface finishes. Tests showed that reducing surface roughness of both coatings increased in-cylinder temperature and pressure as a result of reduced heat transfer through the piston crown. For both coatings, this resulted in small improvements (∼3%) in power and fuel consumption, while also having a measurable effect on emissions. Oxides of nitrogen emissions increased while total hydrocarbon emissions generally decreased as a result of polishing. The polished coatings were also seen to increase in-cylinder peak pressures and burn rates. Improvements attributed to the TBC were found to be small, but statistically significant. At an equivalent surface finish, the MTBC-coated piston produced slightly higher power output and peak pressures. Hydrocarbon emissions were also seen to be significantly higher for the MTBC-coated piston due to its porosity. The effectiveness of the coating was found to be highly dependent on surface finish.
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Calla, E., and S. C. Modi. "Structure & Properties of HVOF Sprayed NiCrBSi Coatings." In ITSC2001, edited by Christopher C. Berndt, Khiam A. Khor, and Erich F. Lugscheider. ASM International, 2001. http://dx.doi.org/10.31399/asm.cp.itsc2001p0281.

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Abstract NiCrBSi spray and fuse types of coatings are routinely applied on various jobs where metallurgical bond of the coating to the substrate is desired. These coatings require a subsequent fusing operation at temperature of about 1050°C. In the present study NiCrBSi coatings were formed by the HVOF process and by the conventional spray and fuse route. The coatings were characterized for their microstructure, hardness and porosity. The aim of this study was to see whether HVOF spraying NiCrBSi spray and fuse powder could cause instant fusing of the coating without the need for additional fusing operation. XRD study of the coatings was also carried out to find out the difference between the spray and fused NiCrBSi coatings and the HVOF sprayed coatings. The HVOF spraying of NiCrBSi was carried under different set of parameters to determine the effect of spraying parameters on the properties of coating.
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Niemi, K., S. Rekola, P. Vuoristo, J. Laurila, M. Vippola, and T. Mäntylä. "Advanced Oxide Ceramic Coatings for Applications Demanding High Wear Resistance." In ITSC2003, edited by Basil R. Marple and Christian Moreau. ASM International, 2003. http://dx.doi.org/10.31399/asm.cp.itsc2003p0233.

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Abstract The paper deals with wear properties of various advanced oxide ceramic coatings deposited by plasma and HVOF spray processes. Several types of ceramic oxide coatings on the base of Al2O3, Cr2O3 and TiO2 are studied in the work. The coatings are characterised by their wear properties in slurry abrasion wear test with fine abrasives (kaolin) and in dry abrasion conditions with coarse abrasives (quartz sand). The surfaces of the wear tested coatings were studied by SEM. The results show that coatings with high homogeneity and minor porosity, especially HVOF sprayed and some plasma sprayed coatings perform extremely well in both of the wear tests used in the study. In the test with hard abrasive and high load, the coatings with lower interlamellar strengths seem to be more prone to wear than coatings with higher homogeneity, e.g. HVOF sprayed oxide ceramic coatings. The results can be explained on basis of type of the coating material and the coating microstructure.
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