Articles de revues : « Root crops »

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Kalia, Pritam. « Root Vegetable Crops ». Journal of New Seeds 6, n^o 2-3 (15 février 2005) : 247–75. http://dx.doi.org/10.1300/j153v06n02_13.

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Stanton, W. R. « Tropical root crops : Root crops and the African food crisis ». Agricultural Systems 27, n^o 2 (janvier 1988) : 157–60. http://dx.doi.org/10.1016/0308-521x(88)90027-3.

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Perkons, Ute, Timo Kautz, Daniel Uteau, Stephan Peth, Vanessa Geier, Katharina Thomas, Katharina Lütke Holz, Miriam Athmann, Ralf Pude et Ulrich Köpke. « Root-length densities of various annual crops following crops with contrasting root systems ». Soil and Tillage Research 137 (avril 2014) : 50–57. http://dx.doi.org/10.1016/j.still.2013.11.005.

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Ofosu-Asiedu, Kingsley, Demas A. Oteino, John O. Omolo et Lazare Etiegni. « Sewage re-use for irrigation in Athi River town Kenya : its implications on public health ». Water Science and Technology 39, n^o 10-11 (1 mai 1999) : 343–46. http://dx.doi.org/10.2166/wst.1999.0679.

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Occupational environmental health associated with both industrial and domestic sewage reuse for food production in Athi River town Kenya has been studied. The levels of toxic heavy metals such as lead, cadmium, selenium and arsenic in the soil, roof crops, leaf crops and fruits (or seed) were determined using atomic absorption spectoscophy (AAS). In soils the average levels of lead and cadmium were 0.44mg/g and 0.13mg/g respectively. The crops analysed were selected as root crops, leaf crops and fruits (or seed) crops. The levels of lead found in these crops were 0.06 μg/g, 0.01 μg/g and fruit 0.05 μg/g for root, leaf and fruit crops respectively. Similarly, the cadmium in root, leaf and fruit crops was 0.016 μg/g, 0.03 μg/g and 0.02 μg/g respectively. Coliform counts were greater than 300 counts per 100ml in all samples, which gave a positive indication of the presence of Escherichia coli.

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Tang, Lanlan, Ming Zhan, Chunhui Shang, Jiayi Yuan, Yibing Wan et Mingguang Qin. « Dynamics of root exuded carbon and its relationships with root traits of rapeseed and wheat ». Plant, Soil and Environment 67, No. 6 (21 mai 2021) : 317–23. http://dx.doi.org/10.17221/561/2020-pse.

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Quantifying carbon in root exudates and exploring their influencing factors are essential to understand soil organic carbon dynamics in cropland. A pot experiment was carried out to explore quantitative relations between root exuded carbon and root traits in wheat and rapeseed. The result showed that rapeseed had a similar pattern in root carbon exudation intensity (EI) as the wheat, but its EI per plant was obviously higher than that in wheat. Rapeseed plants had higher EI per root biomass than wheat plants in the early growth period but lower in the late growth period. EI per root biomass in both crops had significant exponential relationships with the specific root length (RL), surface area (RSA), volume (RV), root C/N ratio and root soluble sugar content. However, EI per plant of both crops had a markedly quadratic relationship with RL, RSA, RV and root biomass. During the whole growth period, the rapeseed had cumulative root carbon exudation of 14.09 g/plant, which was almost twice of that in the wheat plant. Root traits had close relations to root carbon exudation in both crops. Quantitative regression models between them could be referred to estimate root C exudation in rapeseed and wheat farmland.

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Zobel, Richard W. « Rhizogenetics (Root Genetics) of Vegetable Crops ». HortScience 21, n^o 4 (août 1986) : 956–59. http://dx.doi.org/10.21273/hortsci.21.4.956.

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Abstract Plants exist as integrations of their many parts and processes. Each part is conditioned by a distinct collection of genes that interact and integrate with the genes that condition other plant parts or processes (44). Root characteristics are conditioned by about 30% of the plant genome, and one-third of these (10% of the total) condition only root characteristics (39). This level of control for a single plant organ is in agreement with that of other plant organs (25) and implies that root characteristics are as amenable to genetic manipulation as the characteristics of any other plant organ or tissue. Root characteristics are not normally emphasized in plant breeding programs because of the difficulty in observing them in situ, rather than because of a reduced potential for improvement. The level of genetic control described (39) should allow the development of isogenic root mutants that have modified physiological and developmental controls to be used for precise experimentation. Data derived from experimentation with these isogenic root mutants would provide a sound basis for developing and testing hypotheses leading, ultimately, to genetic improvement of vegetable root systems.

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Selvakumar, R., Gograj Singh Jat, Sajad Un Nabi, Geetika Malik, K. Gangadhara et Chintha Pradeepika. « Genomic Advances in Root Vegetable Crops ». International Journal of Current Microbiology and Applied Sciences 7, n^o 10 (10 octobre 2018) : 2649–60. http://dx.doi.org/10.20546/ijcmas.2018.710.308.

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Suhartini, Budi Waluyo, Dodi Wirawan Irawanto, Bahieddin Nofal, Daffa Sandi Lasitya et Baroroh Nur Jihad. « The Role of Root and Tuber Crops on Food Diversification Facing the Climate Change in East Java Indonesia ». IOP Conference Series : Earth and Environmental Science 1323, n^o 1 (1 avril 2024) : 012013. http://dx.doi.org/10.1088/1755-1315/1323/1/012013.

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Abstract Root and tuber crops consisting of cassava, sweet potato, potato, taro and others root and tubers have the important roles as the source of food, nutrition and cash income for many farmers in Indonesia. These crops also as a source of carbohydrates beside rice, corn, cereals, wheat etc. Root and tuber crops are the second most important group of crop plants after the cereals. The government of Indonesia accelerate food diversification based on local food resources, especially facing the climate change. The objective of this study was to estimate the role of root and tuber crops on food diversification and to estimate the household root and tuber crops demand in East Java Indonesia. The research used SUSENAS (Indonesian National Socio-Economic Survey) 2020 data with 31.990 household respondents in East Java Indonesia. Demand for food was estimated by AIDS (Almost Ideal Demand System) model. The results show that the average consumption for root and tuber crops was 0,69 kg/household/week (11,23% from carbohydrates foods), whereas rice consumption amount 4,86 kg/household/week (79,68 %), maize amount 0,25 kg/household/week (4,13%) and cereals amount 0,3 kg/household/week (4,96%). The expenditure elasticity of root and tuber crops was 1,36, while the expenditure elasticity of rice amount 0,78 (normal food), maize (1,41) and cereals (1,27). The expenditure elasticity more than 1 means that root and tuber crops as a superior food, also for maize and cereals. People no longer considers that root and tuber crops to be an inferior food. The root and tuber crops consumptions have the highest proportion after rice. It can be mean that root and tuber crops have the important role on food diversification in East Java Indonesia. Facing the climate change, root and tuber crops development be a right decision, moreover, root and tuber crops can be planted on dry land which is still widely available in Indonesia.

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Osaki, Mitsuru, Mina Matsumoto, Takuro Shinano et Toshiaki Tadano. « A root-shoot interaction hypothesis for high productivity of root crops ». Soil Science and Plant Nutrition 42, n^o 2 (1 juin 1996) : 289–301. http://dx.doi.org/10.1080/00380768.1996.10415099.

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Huang, Ning, Miriam Athmann et Eusun Han. « Biopore-Induced Deep Root Traits of Two Winter Crops ». Agriculture 10, n^o 12 (14 décembre 2020) : 634. http://dx.doi.org/10.3390/agriculture10120634.

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Deeper root growth can be induced by increased biopore density. In this study, we aimed to compare deep root traits of two winter crops in field conditions in response to altered biopore density as affected by crop sequence. Two fodder crop species—chicory and tall fescue—were grown for two consecutive years as preceding crops (pre-crops). Root traits of two winter crops—barley and canola, which were grown as subsequent crops (post-crops)—were measured using the profile wall and soil monolith method. While barley and canola differed greatly in deep root traits, they both significantly increased rooting density inside biopores by two-fold at soil depths shallower than 100 cm. A similar increase in rooting density in the bulk soil was observed below 100 cm soil depth. As a result, rooting depth significantly increased (>5 cm) under biopore-rich conditions throughout the season of the winter crops. Morphological root traits revealed species-wise variation in response to altered biopore density, in which only barley increased root size under biopore-rich conditions. We concluded that large-sized biopores induce deeper rooting of winter crops that can increase soil resource acquisition potential, which is considered to be important for agricultural systems with less outsourced farm resources, e.g., Organic Agriculture. Crops with contrasting root systems can respond differently to varying biopore density, especially root morphology, which should be taken into account upon exploiting biopore-rich conditions in arable fields. Our results also indicate the need for further detailed research with a greater number of species, varieties and genotypes for functional classification of root plasticity against the altered subsoil structure.

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Williamson-Benavides, Bruce A., et Amit Dhingra. « Understanding Root Rot Disease in Agricultural Crops ». Horticulturae 7, n^o 2 (22 février 2021) : 33. http://dx.doi.org/10.3390/horticulturae7020033.

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Root rot diseases remain a major global threat to the productivity of agricultural crops. They are usually caused by more than one type of pathogen and are thus often referred to as a root rot complex. Fungal and oomycete species are the predominant participants in the complex, while bacteria and viruses are also known to cause root rot. Incorporating genetic resistance in cultivated crops is considered the most efficient and sustainable solution to counter root rot, however, resistance is often quantitative in nature. Several genetics studies in various crops have identified the quantitative trait loci associated with resistance. With access to whole genome sequences, the identity of the genes within the reported loci is becoming available. Several of the identified genes have been implicated in pathogen responses. However, it is becoming apparent that at the molecular level, each pathogen engages a unique set of proteins to either infest the host successfully or be defeated or contained in attempting so. In this review, a comprehensive summary of the genes and the potential mechanisms underlying resistance or susceptibility against the most investigated root rots of important agricultural crops is presented.

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Sabiev, U. K., I. R. Khuzin, A. S. Soyunov, S. P. Prokopov et R. K. Abdylmanova. « Device for waterless cleaning of root crops ». IOP Conference Series : Earth and Environmental Science 1010, n^o 1 (1 avril 2022) : 012001. http://dx.doi.org/10.1088/1755-1315/1010/1/012001.

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Abstract Existing devices for waterless cleaning do not provide essential quality due to low efficiency either because of significant tubers damage. Device for waterless cleaning of root crops is developed in Omsky SAU which relates to the agricultural machine-building industry in particular to devices for dry cleaning of tubers from the soil, grassy impurities and haulm before sale preparation as well as for feeding preparation in technological lines of feed mills. High quality cleaning from the soil is achieved by the spiral line of pile arrangement which provides the uniform movement of the processing material heap and prevents tubers unloading due to various pile length that increases the speed of tubers rotation and provides more frequent tuber surface contact with working tools due to spring-loaded bottom providing required compression degree of processing tubers to the brush roll at the expense of dust collector that allows to get rid of small impurities during the technological process and prevents from resetting on tuber surface. Usage of this device allows to reach high quality of cleaning under low degree of damage.

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Flores, Hector E., Travis S. Walker, Rejane L. Guimarães, Harsh Pal Bais et Jorge M. Vivanco. « Andean Root and Tuber Crops : Underground Rainbows ». HortScience 38, n^o 2 (avril 2003) : 161–67. http://dx.doi.org/10.21273/hortsci.38.2.161.

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Panneton, Bernard. « Yield Mapping and GIS for Root Crops ». HortScience 33, n^o 3 (juin 1998) : 552b—552. http://dx.doi.org/10.21273/hortsci.33.3.552b.

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I will show how yield mapping data, aerial photography data, and other agronomic data (fertility, soil parameters) can be integrated into a Geographical Information System (GIS) and give a “feel” of the value of these tools to look at crop production as a whole. The capability of GIS in handling and displaying several layers of georeferenced data leads naturally to a decisionmaking process quite similar to the one used in traditional photo interpretation of aerial imagery. This approach can be very valuable for farm managers and consultants in crop production.

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Nikolaeva, M. A. « Regeneration of mechanically damaged beet root crops ». Tovaroved prodovolstvennykh tovarov (Commodity specialist of food products), n^o 9 (23 septembre 2022) : 579–84. http://dx.doi.org/10.33920/igt-01-2209-03.

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The purpose of the experimental studies, the results of which are presented in the article, was to establish wound reactions of beet root crops, contributing to the regeneration of their mechanical damage, under different storage conditions. It has been established that the regeneration of mechanically damaged root crops is carried out by suberization of the tissues of the wound zone. Suberization occurs in the natural periderm and wound zone not only during the treatment period, but also during subsequent storage. The optimal treatment period for mechanically damaged root crops is characterized by a temperature of 5–8 °C, relative humidity of 85–90% and active air chang

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Smirnov, N. A., et R. A. Smirnov. « Improving the technology of crushing root crops ». IOP Conference Series : Earth and Environmental Science 548 (2 septembre 2020) : 082044. http://dx.doi.org/10.1088/1755-1315/548/8/082044.

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Gregory, Peter J., A. Glyn Bengough, Dmitri Grinev, Sonja Schmidt, W. (Bill) T. B. Thomas, Tobias Wojciechowski et Iain M. Young. « Root phenomics of crops : opportunities and challenges ». Functional Plant Biology 36, n^o 11 (2009) : 922. http://dx.doi.org/10.1071/fp09150.

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Reliable techniques for screening large numbers of plants for root traits are still being developed, but include aeroponic, hydroponic and agar plate systems. Coupled with digital cameras and image analysis software, these systems permit the rapid measurement of root numbers, length and diameter in moderate (typically <1000) numbers of plants. Usually such systems are employed with relatively small seedlings, and information is recorded in 2D. Recent developments in X-ray microtomography have facilitated 3D non-invasive measurement of small root systems grown in solid media, allowing angular distributions to be obtained in addition to numbers and length. However, because of the time taken to scan samples, only a small number can be screened (typically <10 per day, not including analysis time of the large spatial datasets generated) and, depending on sample size, limited resolution may mean that fine roots remain unresolved. Although agar plates allow differences between lines and genotypes to be discerned in young seedlings, the rank order may not be the same when the same materials are grown in solid media. For example, root length of dwarfing wheat (Triticum aestivum L.) lines grown on agar plates was increased by ~40% relative to wild-type and semi-dwarfing lines, but in a sandy loam soil under well watered conditions it was decreased by 24–33%. Such differences in ranking suggest that significant soil environment–genotype interactions are occurring. Developments in instruments and software mean that a combination of high-throughput simple screens and more in-depth examination of root–soil interactions is becoming viable.

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TERASHIMA, Kazuo. « Root characteristics relating to lodging in crops ». Root Research 3, n^o 1 (1994) : 24–27. http://dx.doi.org/10.3117/rootres.3.24.

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Hassan, Affendy, Dorte Bodin Dresbøll et Kristian Thorup-Kristensen. « Naturally coloured roots as a tool for studying root interactions in mixed cropping ». Plant, Soil and Environment 67, No. 12 (10 décembre 2021) : 700–710. http://dx.doi.org/10.17221/154/2021-pse.

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The objective of this study was to evaluate the usage of species with coloured roots to study root growth patterns during intercropping. Red beet (Beta vulgaris L. cv. Detroit), having clear red roots, was used in a semi-field and field experiment to allow identification and quantification of roots of the individual species in the mixture. In the field experiment, red beet was strip intercropped with lucerne (Medicago sativa L. cv. Creno) and kale (Brassica oleracea L. var. Sabellica), respectively while the red beet-lucerne intercropping was conducted in large rhizoboxes where root growth distribution and <sup>15</sup>N isotope uptake was determined. The study confirmed that the direct visual measurement of root growth using species with coloured roots and indirect tracer uptake measurements contributed to the success of studying root growth dynamics in intercropping systems. Red beet root intensity was not considerably affected by the strip intercropping when the crops were established at the same time, but when established between existing lucerne strips, a reduction in roots at the border row was shown. Lucerne and kale were both observed to be able to exploit the deep soil layers beneath the red beet border row.

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Novikova, I. A., I. V. Smirnova, O. M. Vyutnova, E. A. Evseeva, T. Yu Polyanina et N. A. Ratnikova. « Assessment of the safety of chicory root crops during winter storage ». Vegetable crops of Russia, n^o 6 (26 décembre 2020) : 135–37. http://dx.doi.org/10.18619/2072-9146-2020-6-135-137.

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Relevance and methods. For the production of chicory seeds, care must be taken not only to obtain a high-grade source material, i.e. varietal seeds and masterbatch root crops, but also to store the resulting root crops in winter with minimal losses. The main requirement for growing mother chicory root crops is the placement of crops on fertile soils that are clean of weeds. Installed. That on podzolized loams the best dose of mineral fertilizers for this crop is N45P120K60, where an increased dose of superphosphate increases the yield and rootability of Queen cells, increases seed productivity for the second year. Materials and methods. The purpose of this work is to analyze the safety of root crops of chicory root and the degree of their damage by root rot during winter storage in plastic bags in burts. The purpose of the study is to identify the best way to store the mother chicory root crops and the effect of reproduction on the rootability of root crops in winter. Questions of storage of the mother material of root chicory were studied in the laboratory of selection and seed production on the example of the Petrovsky variety in 2017-2019. The material for research was the families of chicory of the Petrovsky variety in the control and elite nursery. Results. The obtained data show that when evaluating and selecting families for the purpose of obtaining highly productive seed material, the safety of root crops in long-term winter storage should be taken into account. If its values are low, the entire family should be completely excluded from the process of primary seed production. In selection and seed-growing work, a mandatory component of the assessment should be the safety of root crops during long-term winter storage.

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Korobova, Lyudmila, Maxim Ivliev, Sergey Chikunov, Irina Tolstova et Denis Arapov. « Modeling of sugar beet losses during storage in heaps ». BIO Web of Conferences 103 (2024) : 00091. http://dx.doi.org/10.1051/bioconf/202410300091.

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After harvesting root crops (beets, carrots, turnips) are stored in the fields or in the processing enterprises warehouse areas. Storage takes place in open space, and not always under shelters. Bulk heaps are formed from the collected root crops. Harmful microflora may occur in it under the influence of various weather conditions. This article discusses the root crops quality reducing issues. The raw materials quality deteriorates due to the development and increase in damaging fungal diseases. This leads to raw materials losses and a decrease in the processing plants productivity. The subject of the study is the storing root crops process. The fungal diseases six types distribution analysis results are presented. Its development patterns are revealed. The damage to root crops in bulk heaps intensity dynamics mathematical models are proposed in the article. Possible ways to normalize climatic conditions when storing root crops in heaps are given.

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Marynenko, Serhii, Ihor Koval, Oleh Huryk et Oleh Korol. « STUDIES OF THE MASS OF ADHERING SOIL ON ROOT CROPS ». Innovative Solution in Modern Science 3, n^o 55 (6 décembre 2022) : 5. http://dx.doi.org/10.26886/2414-634x.3(55)2022.1.

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Adherent soil on dug root crops significantly reduces the quality of raw materials, or requires additional costs for the preparation of root crops for processing. The purpose of the research is to establish the functional dependence between the amounts of soil stuck on root crops depending on their agrobiological characteristics. The results of analytical-empirical studies on the determination of the mass of soil adhering to the lateral surface of the body of root crops on the basis of taking into account the correction factor are given. Dependencies were obtained that characterize the change in the mass of stuck soil on the parameters of root crops. The results of the research are a prerequisite for justifying the parameters of the cleaning working bodies of the root harvesting machine.Key words: excavation, digger, working bodies, experiment, correction coefficient, response surface.

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Bhuyan, Prerana, Gitanjali Devi, Reecha T. Das et Sailen Gogoi. « Prevalence of Plant-Parasitic Nematodes in Horticultural Fields of Assam Agricultural University : Jorhat Campus, India ». Journal of Scientific Research and Reports 30, n^o 6 (30 avril 2024) : 245–51. http://dx.doi.org/10.9734/jsrr/2024/v30i62038.

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A random survey of the horticultural crops was conducted to assess the nematode community structure in the Experimental field of Department of Horticulture, AAU, Jorhat during Rabi and Kharif season, 2022-2023. Soil and root samples, representing 200 locations were examined. Analysis of 200 soil and root samples collected from the root rhizosphere of different vegetable, fruit and ornamental crops showed the presence of root-knot nematode(Meloidogyne incognita), reniform nematode (Rotylenchulus reniformis), root-lesion nematode (Pratylenchus spp.), lance nematode (Hoplolaimus spp.), spiral nematode (Helicotylenchus spp.), stunt nematode (Tylenchorhynchus spp.) along with Criconema spp., Xiphinema spp, Longidorus spp., free-living nematodes, mycophagous nematodes and predatory nematodes. Among all the isolated plant-parasitic nematodes, root-knot nematode (Meloidogyne incognita) was found to be more abundant with prominence value of 136.7, 81.3 and 76.3 in vegetable crops, fruit crops and ornamental crops, followed by Helicotylenchus spp. and Rotylenchulus reniformis. The prominence value of reniform nematode (Rotylenchulus reniformis) was found to be 90.5, 54.1 and 54.1 in vegetable crops, fruit crops and ornamental plants respectively.

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Boyko, Volodymyr. « ANALYTICAL STUDIES OF THE PERMISSIBLE MASS OF THE CUTTER OF THE REMAINS OF THE HAULM FROM THE HEADS OF ROOT CROPS ». Innovative Solution in Modern Science 3, n^o 58 (2 octobre 2023) : 5. http://dx.doi.org/10.26886/2414-634x.3(58)2023.1.

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Increasing the quality indicators of trimming the heads of chicory root crops is an urgent scientific task. An improved design of the cutter for the remnants of the gorse is proposed. The purpose of the research is to establish the functional dependence between the reduced weight of the pruner and the parameters of the work process of trimming the remains of burdock from the heads of chicory root crops. The method of developing deterministic mathematical models is given, which characterizes the change in the reduced mass of the trimmer of the remains of the root crops from the heads of root crops, made according to the "passive copier-spring-loaded knife" type, with the condition of no falling out and no damage to the root crops due to the process parameters. Based on the analysis, the main structural and kinematic parameters of the cutter's working bodies were established.Key words: root crops of chicory, remnants of sedge, trimmer, reduced mass of trimmer, copier speed.

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Bogaturev, Vladimir Fedorovich, Svetlana Vyacheslavovna Danilova, Roman Vladimirovich Shkrabak, Elena Ivanovna Gavrikova et Vladimir Stepanovich Shkrabak. « Characteristics of safety and harmlessness conditions labor of operators at the sorting facilities of table root crops and potatoes ». Agrarian Scientific Journal, n^o 7 (31 juillet 2023) : 125–35. http://dx.doi.org/10.28983/asj.y2023i7pp125-135.

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The article notes the influence of production factors on operators when sorting table root crops. The most harmful production factors acting on a person have been identified, as this is the most important barometer of the state of working capacity and prevention of production-related and occupational diseases. It is established that the content of soil dust depends on many factors (weather conditions during harvesting, soil type, the amount of incoming pile of root crops for sorting). Information is given on the granulometric composition of the soil coming together with root crops from harvesting machines to the refinement line. It is noted that from the point of view of labor protection the dustiness of the air in the zone of refinement of root crops, exceeding the regulatory requirements by 2 or more times, is of particular concern. Attention is drawn to the fact that the emissions of the ventilation system into the environment from the vegetable store, where fruit and vegetable products are unloaded from the harvested field areas, pollute the external (as well as internal) air space not only with dust, but also with harmful substances damaged during harvesting of perishable products and imported with it residues of vegetation and a large amount of land stuck to the products in connection with the harvesting of potatoes and table root crops during a period of high humidity; this is typical for the Northwestern zone during the harvesting period (September-October). The soil stuck in the gaps of the treads of the wheels of tractors, cars and trailers gets into the vegetable storage room during the unloading of field products. In connection with the treatment of crops with agrochemicals during the period of plant development, the remains of agrochemicals, which adversely affect the working conditions of operators at the objects of sorting table root crops and potatoes, also enter the premises with the soil. product sorting. The patent solution has been introduced into production at the workplace of operators, providing a reduction in dust content by 1.5-2.0 times below the maximum allowable concentrations.

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Doronin, V., Yu Kravchenko, V. Dryga, M. Budovsky et V. Doronin. « Productivity of sugar beet seed plants depending on the quality of mother root crops ». Agrobìologìâ, n^o 2(142) (22 décembre 2018) : 18–24. http://dx.doi.org/10.33245/2310-9270-2018-142-2-18-24.

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In the intensive arable farming the productivity of sugar beets depends on many factors: soil-climatic conditions, introduction of highly productive hybrids, quality pre-sowing seed treatment, use of updated machinery and technologies, fertilizers, reliable plant protection, high technological processing at sugar mills and others. All the mentioned factors can reduce the productivity of sugar beets considerably, but it is not possible to reach a maximum potential of crop productivity without the use of good-quality seeds of the latest hybrids. The quality of sugar beet seeds is formed during the growth, and it depends on several factors, and first of all on the quality of mother root crops – their mass, sizes, turgor, disease damage and others. Laboratory trials were carried out at the Institute of bio-energy crops and sugar beets of Ukraine’s NAAS, field trials were carried out in the conditions of Ivanivka research-breeding station in the years of 2016–2018. The trial scheme envisaged the planting of root crops, which were not damaged with root rot and damaged with root rot, a focal point of rot being removed before planting. During vegetation, seed plants were treated with fungicides at a bud stage (one–time treatment) and at a bud stage and the beginning of flowering (two–time treatment). Fungicides were not used in the control. Mother root crops, seed plants and seeds of a sugar beet hybrid, developed on the basis of cytoplasm male sterility Romul, were the object of the research. In the field trials the following was determined: viability of the root crops (the number of the emerged crops as to the number of the panted root crops) and the seed plant density at a full emergence stage and before harvesting. Agro-biological evaluation of the seed plant condition was made before harvesting – the number of non-productive seed plants (dried, infertile ones and others), the number of disease-damaged plants and the degree of their development. A record plot area of one replication was 20 m2 in field trials, a fourfold replication. The technology of seed plant cultivation is conventional, in accordance with the recommendations of the Institute of bio-energy crops and sugar beets of Ukraine’s NAAS. The paper covered some peculiarities of the yield formation and the quality of sugar beet seeds, depending on the quality of mother root crops. It was proved that the use of the root crops, partially damaged with rot during storage, and even when a focal point of rot was removed before harvesting, had an effect on the root crop viability (which was by 4.4 % lower), the formation of more non-productive plants – by 1.6–1.8 times – due to the increase of prematurely dried plants and infertile ones, which resulted in a serious yield decease – by 0.09-0.13 t/ha and seed quality – viability by 4 % and emergence by 6 %, as compared with the variants where health root crops were planted. Two-time spraying of the seed plants with fungicides resulted in the increase of the yield capacity and the seed quality in the variants where only partially rot-damaged root crops were planted. A tendency to the increase of the mentioned indicators, both in the variants with healthy root crops planted and with partially damaged root crops planted, was recorded under one-time spraying of the seed plants with fungicides. The research of the seeds gathered from the seed plants, which were grown from the root crops, disease-damaged and healthy ones, confirmed the results of the field trials. The viability of the seeds, received from the healthy (not disease-damaged) root crops was higher by 9 %, emergence – by 5 %, as compared with the root crops, partially rot-damaged, focal points of which were removed before planting. Key words: mother root crops, rot, productive seed plants, yield capacity, viability, germination.

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Hlevaskiy, V., I. Sydorova et V. Kuyanov. « Accounting of physical qualities of root crops during sugar beet reception and storage ». Agrobìologìâ, n^o 2(183) (23 novembre 2023) : 137–45. http://dx.doi.org/10.33245/2310-9270-2023-183-2-137-145.

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This article studied the quality of sugar beet roots during storage. The determining factor in the efficiency of beet sugar production is the output of sugar at a plant. Root crops are characterized by a sharp change in technological quality depending on the areas of beet seeding, agrometeorological conditions of a year, cultivation technology and storage conditions. They are easily damaged during harvesting and transportation, they are relatively poorly stored. The physical properties of root crops depend mainly on the settings of the beet harvesters, weather conditions during the harvesting period; chemical properties depend on the varietal characteristics and agricultural cultivation techniques. When growing under the same conditions, varietal characteristics play a decisive role in the yield and technological quality of root crops. Therefore it is important to use two or three hybrids when growing on the farm, which belong to different groups according to the initial technological qualities and the level of sugar loss during storage. The hybrids must provide a high sugar yield during the sugar factory operation. Therefore, it is necessary to have hybrid-specific data on sugar yield during the entire harvesting period, the date of achieving maximum sugar content, resistance to gray rot and the intensity of sugar loss during the storage. Root crops with higher sugar content lose more sugar during prolonged storage, and its yield is reduced to a greater extent. Root crops of such hybrids should not be stored, but immediately sent for processing. Studies show that in piles where raw materials with 9–10 % of mechanically damaged root crops are stored, rotting processes are activated 4.5 times, and with 17– 18 % – 10 times faster compared to undamaged ones. To reduce the damage to root crops by gray rot during storage, biocidal preparations should be used. During storage in the field in open piles for 12 days, sugar losses in root crops reach 1.7 % in September in absolute weight. Sugar losses in such conditions reach 1.3 % in September and 0.9 % in October. The increased amount of green mass reduces the technological quality of root crops. For each per cent of green mass without storage, sugar yield is reduced by 0.2 %, molasses yield and sugar losses increase due to additional non-sugars in the juice. During storage such root crops germinate quickly, which reduces sugar yield. Key words: sugar beet, root crop, root crops quality, premature seeding, gray rot, piles.

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Smith, Brendan J., John A. Kirkegaard et Geoff N. Howe. « Impacts of Brassica break-crops on soil biology and yield of following wheat crops ». Australian Journal of Agricultural Research 55, n^o 1 (2004) : 1. http://dx.doi.org/10.1071/ar03104.

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Biofumigation refers to the allelopathic effects of brassicas on non-desirable soil organisms in a rotation cropping system. These effects are additional to non-hosting of root diseases, responsible for much of the break-crop effect observed in a following cereal crop. We investigated the biofumigation impacts of canola on take-all disease and rhizosphere microorganisms of following wheat crops. The biofumigation potential of the canola was tested by comparing effects of Brassica and non-Brassica break-crops and by using canola varieties with differing levels of root glucosinolates, the precursors of isothiocyanates, which are thought to be the primary biofumigant molecules released by brassicas. There was no evidence that biofumigation was related to superior growth of wheat following brassicas compared with non-Brassica break-crops, nor among the wheat crops following canola varieties with differing root glucosinolate levels. However, the break-crop effect was evident in agronomic, take-all, and some rhizosphere microbial measurements of the wheat–wheat rotations compared with fallow–wheat or break-crop–wheat rotations. Thus the break-crop effect was the primary advantage conferred by the brassicas. Any additional biofumigation effect on yield or disease was not significant in our study and does not appear to be influenced by root glucosinolate content. For broad-acre cropping with current canola or mustard varieties, and adequate grass weed control, the agronomic characteristics of canola varieties chosen should take precedence over their biofumigation potential.

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Chigozirim, Onwusiribe Ndubuisi, Oteh Ogbonnaya Ukeh, Agwu Nnanna Mba, Okpokiri Chibuzo et Oloveze Ambrose Ogbonna. « Root and Tuber Crop Market System in Nigeria Macroeconomic Determinants ». Journal of Agribusiness Marketing 12, n^o 1 (15 janvier 2024) : 32–51. http://dx.doi.org/10.56527/jabm.12.1.3.

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Root and tuber crops are food security crop and thus have wide market preference and value in many economies. However, they are constrained by a convergence of external factors that impact on their production, marketing and export potential. The study opened conversations on the market system of root and tuber crops and examined macroeconomic variables that influence Nigeria market commercialization drive and competitiveness in both regional and international trade, using cross sectional data from 1960 to 2016 sourced from the Central Bank of Nigeria (CBN) statistical bulletin, Food and Agriculture Organization (FAO) database and World Bank Development indicators. Analytically, the study employed econometric tools such as unit root tests, trend analysis (i.e. quadratic equation), Generalized Method of Moments, Malmquist productivity index, Autoregressive Distributed Lag (ARDL) model. Findings revealed that macroeconomic variables of exports, imports, and inflation, exchange rate, tariff, price and world exports had long-run and short-run impacts on the exports of root and tuber crops. The study recommends market-oriented strategy by caution against protectionist led interventions such as outright ban on importation, as they impact negatively on market behaviour; rather advocated for effective policing of border to check smuggling, also improvement in policies that improve production to check price instability, which characterize root and tuber crop marketing in Nigeria. There is need for effective regulation and policies that protect risk and guarantee returns in the supply chain of root and tuber crops so that supply-chain actors can benefit substantially from international trade.

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Yang, Chao, Chantal Hamel, Yantai Gan et Vladimir Vujanovic. « Bacterial endophytes mediate positive feedback effects of early legume termination times on the yield of subsequent durum wheat crops ». Canadian Journal of Microbiology 58, n^o 12 (décembre 2012) : 1368–77. http://dx.doi.org/10.1139/w2012-114.

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Field crops influence the biotic properties of the soil, impacting the health and productivity of subsequent crops. Polymerase chain reaction and 454 GS FLX pyrosequencing of amplicons were used to clarify the legacy of chickpea and pea crops on the quality of the bacterial community colonizing the root endosphere of subsequent crops of wheat, in a replicated field study. Similar communities of root endosphere bacteria were formed in durum wheat grown after pea and chickpea crops when chickpea crops were terminated as early as pea (July). Termination of the chickpea crops in September led to the domination of Firmicutes in wheat root endosphere; Actinobacteria dominated the wheat root endosphere following early pulse crop termination. The architecture of wheat plants was correlated with the composition of its root endosphere community. High grain yield was associated with the production of fewer but larger wheat heads, the abundance of endospheric Actinobacteria and Acidobacteria, and the scarcity of endospheric Firmicutes. Pulse termination time affected wheat root endosphere colonization strongly in 2009 but weakly in 2010, an abnormally wet year. This study improved our understanding of the so-called “crop rotation effect” in pulse–wheat systems and showed how this system can be manipulated through agronomic decisions.

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Komil, Astanakulov, et Turdibekov Ilkhomjon. « DETERMINING THE CUTTING RESISTANCE OF MUNG BEAN ROOT ». American Journal of Applied Science and Technology 4, n^o 6 (1 juin 2024) : 71–75. http://dx.doi.org/10.37547/ajast/volume04issue06-14.

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Pankiv, M., et M. Pidhurskyi. « EXPERIMENTAL STUDIES OF QUALITY INDICATORS OF THE TRANSPORT CLEANING SYSTEM ». Innovative Solution in Modern Science 6, n^o 42 (16 octobre 2020) : 177. http://dx.doi.org/10.26886/2414-634x.6(42)2020.10.

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The efficiency of the technological process of cleaning root crops from impurities is ensured by developing, justifying the parameters and application of advanced cleaning systems of the heap of root crops. The description of a design and the principle of work of transport and clearing system of a heap of root crops is resulted. According to the results of field planned factorial experiments, regression equations were obtained, which characterize the change of components of the heap of root crops depending on the structural and kinematic parameters of the transport and cleaning system and the operating conditions of the root harvesting machine. The results of the study are the prerequisites for the development of methodology and methods for optimizing the parameters of treatment systems of root harvesting machines.Kеу wоrds: loading conveyor, cleaning slide, auger system, roots, general impurities, damage to roots.

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Dorokhov, Alexey Semyonovich, Aleksey Viktorovich Sibirev, Alexander Gennadievich Aksenov et Maxim Alexandrovich Mosyakov. « LABORATORY-FIELD RESEARCH RESULTS FOR ONION CLEANING ». INMATEH Vol.61 61, n^o 2 (31 août 2020) : 41–48. http://dx.doi.org/10.35633/inmateh-61-05.

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In the machine technology for cultivation and harvesting of root crops and onions, one of the most important quality indicators determining the duration of root crops storage is the presence of soil and plant impurities in the heap to be stored. The impossibility to separate soil lumps from the heap of root crops and onions is due to the fact that the majority of harvesters use slotted separating executive devices, while the inter-rod distance of the separating conveyor, in order to eliminate the loss of root crops, is made smaller than the minimum size of the separated root crop, which leads to the impossibility of their cleaning on the separating executive devices of harvesters, and, consequently, to the damage of a significant part of commercial products and loss of a significant part of the crop grown during storage. The modern technologies and technical means for harvesting root crops and onions are not capable of providing high-quality commercial products with minimal labour, due to falling behind or a lack of development of technological foundations, technologies and executive devices for harvesting root crops and onions, capable of reducing or excluding the content of soil lumps in commercial products under various soil and climatic conditions. Therefore, development of mechanization tools for harvesting root crops and onions, which would allow reducing or eliminating the content of mechanical impurities in commercial products under various soil and climatic conditions, is a scientific problem, the solution of which will contribute to the innovative development of the domestic agricultural market, Russia's stable position on the foreign market.

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Montasser, S. A. « Evaluation of six leguminous crops against the root-knot nematode, Meloidogyne javanica infection ». Pakistan Journal of Nematology 35, n^o 1 (31 janvier 2017) : 79–84. http://dx.doi.org/10.18681/pjn.v35.i01.p79-84.

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Bulgakov, Volodymyr, Semjons Ivanovs, Igor Safchenko, Andrii Boris et Petro Rychlivskyj. « Theoretical Research of the Design and Technological Parameters of a Device for Lifting of Deep-Seated Table Root Crops ». Acta Technologica Agriculturae 22, n^o 3 (1 septembre 2019) : 99–103. http://dx.doi.org/10.2478/ata-2019-0018.

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Abstract Due to the high energy intensity of lifting of deep-seated table root crops, their growth develops mainly in light sandy-loam soils, in which it is possible to transfer a heap of root crops to the separating devices in order to facilitate the qualitative separation. Therefore, issue of lifting of deep-seated table root crops at minimal energy consumption and labour costs is an important scientific and practical task, which would allow expansion of cultivation of deep-seated table root vegetables to heavy soils. Research was conducted by means of a theoretical method utilizing elements of theoretical mechanics with subsequent processing of results by means of PC. Mathematical model and resulting energy cost dependences were constructed on the basis of the device parameters for soil loosening and lifting of deep-seated table root crops. Refined mathematical model of the process of lifting of deep-seated root crops made it possible to find out scientific and technical preconditions for the development of lifting devices with minimal energy consumption.

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Boyko, Volodymyr. « Mathematical model of the process of contact interaction of the copier with the head of the chicory root crop ». Scientific journal of the Ternopil national technical university 111, n^o 3 (2023) : 115–25. http://dx.doi.org/10.33108/visnyk_tntu2023.03.115.

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One of the reserves for improving the quality indicators of haulm harvesters is to improve the technological process of haulm cutting by improving the design of cutters for haulm residues from the heads of root crops. In this regard, the development of new and improved working bodies for trimming the remains of tops from the heads of chicory root crops and studying the influence of the constructive and kinematic parameters of the cutter in order to improve the performance of haulm harvesters is an urgent scientific task. The developed mathematical models of the process of contact interaction of the copier with the head of the chicory root crop are the initial prerequisites for further technological analysis of cutting the remains of tops from the heads of root crops. The final solutions of integral equations will make it possible to justify the main parameters of the pruner based on the conditions of permissible horizontal force and permissible normal stresses, or from the condition of not knocking out root crops from the soil and not damaging root crops.

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Stoffella, Peter J., et Brian A. Kahn. « Root System Effects on Lodging of Vegetable Crops ». HortScience 21, n^o 4 (août 1986) : 960–63. http://dx.doi.org/10.21273/hortsci.21.4.960.

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Abstract Lodging may be defined as “the state of permanent displacement of stems from their upright position” (31). Diverse factors are known to bring about lodging. Plants may be inherently weak and susceptible to lodging due to such traits as a low stem lignin content (4, 49) or a small root system (31, 40, 45). Plants may be weakened due to damage by insects or pathogens (24, 31). Cultural practices can increase lodging through increased plant populations (13, 31, 54), high fertilization rates (31, 54), irrigation (31, 54), or damage from cultivation (18). Both stem lodging and root lodging may occur. In stem lodging, the plant bends over or breaks at any point along its stem. In root lodging, straight and intact stems lean over from the ground level due to a disturbed or an inherently weak root system (31).

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Chen, Peilei, Ruixue Yang, Dorothea Bartels, Tianyu Dong et Hongying Duan. « Roles of Abscisic Acid and Gibberellins in Stem/Root Tuber Development ». International Journal of Molecular Sciences 23, n^o 9 (29 avril 2022) : 4955. http://dx.doi.org/10.3390/ijms23094955.

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Root and tuber crops are of great importance. They not only contribute to feeding the population but also provide raw material for medicine and small-scale industries. The yield of the root and tuber crops is subject to the development of stem/root tubers, which involves the initiation, expansion, and maturation of storage organs. The formation of the storage organ is a highly intricate process, regulated by multiple phytohormones. Gibberellins (GAs) and abscisic acid (ABA), as antagonists, are essential regulators during stem/root tuber development. This review summarizes the current knowledge of the roles of GA and ABA during stem/root tuber development in various tuber crops.

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Krotiyuk, L., О. Dubchak, L. Andrieieva et M. Kornieieva. « Selection on improvement of the sugar beet root form ». Agrobìologìâ, n^o 2(153) (18 décembre 2019) : 13–20. http://dx.doi.org/10.33245/2310-9270-2019-153-2-13-20.

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The aim of the study was to create new starting materials of beets with improved oval conical root form, higher weight and sugar content to get high yielding hybrids. Based on the results of the research on root beet form improvement by hybridization of sugar beet root with fodder beet it was proven that the fodder beet can exceed sugar beet on productivity twice under identical agro climatic conditions. To transmit the root-shaped trait, it is not enough to have one crossing with the plants-carriers of the genes controlling the roundness of the form, since the selection of plants in F2 does not exceed 3 % and thus additional cross-breeding is necessary. The estimation of initial forms of beets according to the productivity elements for hybridization is given in the article (the yield of sugar beets recipients samples made 39.7–51.1 t/ha, that of donor of the feed beet variety made 60.5 t/ha). In the hybrid offspring, root crops varied in shape from a spindle-shaped to an oval-conical. Root crops of hybrid specimens of oval and wide-conical shapes were selected, which outweighed the initial forms by productivity: yields – by 3.2–20.8 %, sugar content – by 1.0–3.5 %. Due to the fact that different forms of beets root crops differ in productivity, it is necessary to transfer the form of root crops from fodder beet as more productive to sugar beet. It was noted that sample B11360-68 / Biamara F2 with the highest root mass (780 g) had the highest leaf area of 1.2 m2. The yields made 104.8 % and 103.5 %, respectively by sugar content of the original form. In the second generation we obtained 45.5–59.0 % of root beets with oval and wide-conical shapes and increased by 3.2–20.8 % yield compared to the original forms. The collection of breeding materials of Verkhnyatskiy RSS was supplemented by an oval-conical hybrid specimen and three broad-conical specimens with a smooth root surface that had a less pronounced orthostich and had a high root mass. Key words: sugar beet, fodder beet, productivity, beet root form, crossing, selection.

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40

Ruuth, Per. « Resistance of cruciferous crops to turnip root fly ». Agricultural and Food Science 60, n^o 4 (1 mars 1988) : 269–79. http://dx.doi.org/10.23986/afsci.72287.

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Cruciferous crops have been investigated for resistance to turnip root fly (Delia floralis Fallén) in northern Sweden. Resistance variation has been demonstrated in field trials by observations of wilting symptoms, differences in green mass yield, root damages, surviving plants and number of eggs. Laboratory methods for resistance studies and plant selections in controlled environment are presented, and a method for rearing of flies is described. The definitions of antixenosis, antibiosis and tolerance are discussed, and suggestions for resistance breeding presented.

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Hlevaskiy, V., V. Rybak, V. Kuyanov et R. Shapovalenko. « Sugar beets root crops productivity in different hybrids ». Agrobìologìâ, n^o 2(153) (18 décembre 2019) : 6–12. http://dx.doi.org/10.33245/2310-9270-2019-153-2-6-12.

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Modern sugar beet hybrids have a potential root crop capacity of above 50.0 t/ha and sugar content of 16.1–18.5 %. Seeds with a germination rate of not less than 90 % are being used in this case, highly efficient energy-saving technologies based on the use of agricultural techniques (crop rotation, fertilization system, soil tillage system, sowing at the final density), protection against pests and diseases, the method of harvesting root crops are used. The performance of the sugar beet hybrid is mainly determined by the genetic information contained in the seeds and the conditions in which the plants grow. The purpose of the research was to investigate the varietal features of growth, development and productivity of sugar beet in the conditions of the central part of the Right-bank forest-steppe of Ukraine. The following sugar beet hybrids were used for sowing: Olzhych, Etude, Zluka, Constanta and Anichka with the fraction of 3.5–4.5 mm and laboratory germination of 85–90 %. The growth and development of sugar beet plants of different hybrids differed. There was a tendency for more positive germination of seeds and a more complete density of seedlings in the hybrid Constanta. The productivity of the sugar beet root crops is determined by the yield, sugar content and sugar harvest. Crop capacity of the male sterile hybrids studied averaged from 46.4 to 55.6 t/ha over the three years of studies, sugar content – 15.6–17.0 % and sugar yield – 7.4–9.5 t/ha. Hybrids Zluka and Constanta appeared to be the most adapted to the conditions of the central part of the right-bank forest-steppe of Ukraine. Thus, over three years, the Zluka hybrid had an average crop capacity of 55.6 t/ha, the sugar content of the roots was 16.1 %, the sugar harvest was 9.0 t/ha, and the hybrid Constant had a yield of 55.1 t/ha, the sugar content of the roots – 16.2 %, sugar yield – 8.1 t/ha. Key words: sugar beets, hybrids, field germination of seeds, sugar content, sugar yield.

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Agrawal, Pooja, et Shruti Shukla. « Diversity of root nodule bacteria from leguminous crops ». Archives of Biological Sciences 68, n^o 1 (2016) : 195–205. http://dx.doi.org/10.2298/abs150504142a.

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In the present study, a total of 353 nodule-associated bacteria were isolated from 220 legume plant samples belonging to Cicer arietinum (85), Glycine max (74), Vigna radiata (21) and Cajanus cajan (40). A total of 224 bacteria were identified as fast-growing Rhizobium spp. on the basis of differential staining (Gram staining and carbol fuchsin staining) and biochemical tests. All the isolates were tested for indole acetic acid production (IAA), phosphate solubilization and siderophore production on plate assay. To examine the effect of volatile organic metabolites (VOM) and water soluble soil components (WSSC) on nodule bacteria, culture conditions were optimized by observing the effects of various parameters such as pH, salt content and temperatures on the growth of bacteria. Selected rhizobia were subjected to random amplified polymorphic DNA (RAPD) and amplified ribosomal DNA restriction analysis (ARDRA) analysis to identify their species. On the basis of RAPD and ARDRA, 10 isolates were identified as Rhizobium meliloti. In this study, Rhizobium GO4, G16, G20, G77, S43, S81, M07, M37, A15 and A55 were observed as the best candidates among the tested bacteria and can be further used as potent bioinoculants.

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Shukhanov, S. N., et A. S. Dorzhiev. « Modernization of the apparatus for grinding root crops ». Traktory i sel'hozmashiny 1, n^o 2 (2021) : 68–72. http://dx.doi.org/10.31992/0321-4443-2021-2-68-72.

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The sustainable functioning of the agro-industrial complex largely determines its scientific and technical support. One of the key directions of the development of agricultural science is the mech-anization of animal husbandry processes. When solving a complex of problems, great attention is paid to the preparation of feed, namely the grinding of root-club crops. This makes it possible to significantly increase the return of each feed unit. As a result of a wide review of literary sources and a thorough analysis of modern designs of root-club grinders, it became possible to solve the technical problem of its modernization by creating a simple as well as reliable design. The peculiarity of the modernization consists in the fact that the electric motor is mounted on the cover of the housing with the help of a flange, which is its component element, besides, the axis of rotation of the shaft structure is aligned with the axis of rotation of the disk structure. Loading hopper is also installed on cover. For this purpose, the cover has a hole for the driving shaft of the electric motor, as well as a window for passage of root clubs from the cavity of the receiving hopper to the space of the housing. Disk is rigidly mounted on free edge of shaft structure. Body is fixed on base by means of uprights vertically and with formation of free space under its bottom and base for installation of unloading neck, as well as reservoir for treated root crops. The discharge neck is structurally made in the form of a funnel with the formation of a conical component at the top and a cylindrical com-ponent at the bottom. In addition, the axis of symmetry of the funnel is aligned with the axis of rotation of the shaft. Its conical component is attached to the outer surface of the bottom structure, and the cylindrical component of the funnel is oriented to the container for the treated material. Concentric holes are made in bottom for passage of processed root crops from cavity of body into structure of discharge neck. The principle of energy saving is carried out by supplying treated fodder to the discharge neck device and further to the receiving vessel mainly due to gravity of the treated fodder.

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Kahn, Brian A., et Peter J. Stoffella. « Root Systems of Vegetable Crops : A Brief Introduction ». HortScience 21, n^o 4 (août 1986) : 951. http://dx.doi.org/10.21273/hortsci.21.4.951.

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Abstract Roots have several vital functions in crop plants, including providing anchorage, absorbing and conducting water and nutrients, providing a “sink” (and sometimes a storage location) for assimilates, and synthesizing certain phytohormones. Yet, the statement made by Weaver and Bruner in 1927 (5) remains true today: “The roots of plants are the least known, least understood, and least appreciated parts of the plant”. This lack of understanding can be attributed to the fact that roots are usually out of sight, and to the tedious and difficult nature of root studies in situ.

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45

Baranovsky, V., et O. Skalskyi. « Digging of chicory root crops by combined digger ». Scientific journal of the Ternopil national technical university 90, n^o 2 (26 juin 2018) : 115–23. http://dx.doi.org/10.33108/visnyk_tntu2018.02.115.

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Gish, Ruslan Aidamirovich. « RARE ROOT CROPS : BIOLOGY, CULTIVATION TECHNOLOGY, VARIETIES, USAGE ». Polythematic Online Scientific Journal of Kuban State Agrarian University, n^o 177 (2022) : 71–93. http://dx.doi.org/10.21515/1990-4665-177-006.

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Bláha, Ladislav. « Importance Of Root-Shoot Ratio For Crops Production ». Agronomy & ; Agricultural Science 2, n^o 2 (19 novembre 2019) : 1–7. http://dx.doi.org/10.24966/aas-8292/100012.

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Ovtov, V. A., et N. S. Chirkova. « Rotary paddle orienting device for planting root crops ». IOP Conference Series : Earth and Environmental Science 954, n^o 1 (1 janvier 2022) : 012058. http://dx.doi.org/10.1088/1755-1315/954/1/012058.

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Abstract In the total volume of vegetable production, sugar beet takes a leading position. However, the current structure of sugar beet seed production in Russia is not able to meet the needs of agricultural producers with domestic seeds, which leads to a high share of the use of foreign breeding hybrids. Therefore, studies aimed at reducing the cost of manual labor when planting sugar beet mother plants through the development and use of orienting devices for planting machines are relevant. The article presents a three-dimensional model of a rotary paddle orienting device with given design parameters for planting sugar beet mother plants. The power expended on the drive of the rotary paddle orienting device providing the piece-by-piece supply of sugar beet plantings at a planting unit speed of 3.6 km/h has been determined. The kinematic parameters of the operation with the rotary paddle orienting device in conjunction with the landing apparatus of the planting machine have been substantiated. The energy calculation of the drive of the rotary vane orienting device was carried out and the loads acting on it were carried out, as well as the rolling bearings were selected. A chain transmission has been designed and modeled using the KOMPAS 3D computer-aided design system and its main parameters have been determined, which ensure reliable operation of the rotary paddle orienting device.

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Shankar, Vijay, Rao S. Govindaraju, C. S. P. Ojha et K. S. Hari Prasad. « Nondimensional Relationship for Root Water Uptake in Crops ». Journal of Irrigation and Drainage Engineering 139, n^o 11 (novembre 2013) : 961–64. http://dx.doi.org/10.1061/(asce)ir.1943-4774.0000632.

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Tayler, R. S. « Tropical root crops : Production and uses in africa ». Agricultural Systems 18, n^o 2 (janvier 1985) : 130–31. http://dx.doi.org/10.1016/0308-521x(85)90052-6.

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Articles de revues sur le sujet « Root crops »

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