seed crop Articles
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QTL analysis of seed iron, zinc, and phosphorus levels in an andean bean population
Iron and zinc are essential micronutrients for human health often found in insufficient quantities in the diet. Biofortification of seed crops has been undertaken to reduce micronutrient malnutrition. The objectives of this study were to identify variability for seed Fe, Zn, P, and phytic acid levels in an F5:7 recombinant inbred line (RIL) population developed from a cross between AND696 and ...
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A survey of neonicotinoid use and potential exposure to Northern Bobwhite (Colinus virginianus) and Scaled quail (Callipepla squamata) in the rolling plains of Texas and Oklahoma
Northern Bobwhite (Colinus virginianus) and Scaled quail (Callipepla squamata) populations have seen a dramatic decline in the Rolling Plains ecoregion of Texas and Oklahoma, USA. There is a rising concern for the potential toxicity of neonicotinoids in birds. To investigate this concern, we examined crops of 81 Northern Bobwhite and 17 Scaled quail to determine the presence or absence of ...
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Property claims in genetically and non-genetically modified crops: intellectual property rights vs. brand property rights in postindustrial knowledge societies
Conceptualising the ongoing conflict over genetically modified vs. non-genetically modified crops in the frame of property rights, one can see that economic valorisation dynamics and aspirations are working on both sides, within two differently evolving agri-food paradigms, with biotechnology companies propagating intellectual property rights on seeds and crops within a productivist strategy, and ...
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Establishment and growth of self-seeded winter cereal cover crops in a soybean–corn rotation
Perpetuating cereal cover crops through self-seeding may increase adoption by reducing risk and cost. Winter rye (Secale cereale L.), wheat (Triticum aestivum L.), and triticale (x Triticosecale Wittmack) were used to develop self-seeding cover crop systems in a soybean [Glycine max (L.) Merr.]–corn (Zea mays L.) rotation. Cereals were planted and managed chemically and mechanically in varying ...
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Ethiopia’s seed banks and the search for food security
The community seed bank in Chefe Donsa, a village two hours’ drive east of the Ethiopian capital Addis Ababa, collects and preserves the seeds of local crops to ensure farmers have a steady supply of seeds to sow each year. The Chefe Donsa seed bank is just one of 13 established in different climatic areas of the country. The nation’s central seed bank, which the Ethiopian Institute ...
By SciDev.Net
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A target region amplified polymorphism marker for fertility restorer gene rf1 and chromosomal localization of rf1 and rf2 in cotton
Cytoplasmic male sterility (CMS), a maternally inherited trait characterized as an inability to produce functional pollen, is an important biological system for economically producing hybrid seed to enhance crop yield and studying cytoplasmic and nuclear gene interactions. In cultivated tetraploid cotton (Gossypium hirsutum L.), male fertility in two systems CMS-D2 and CMS-D8 is restored by two ...
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Self-seeded cereal cover crop effects on interspecific competition with corn
Perpetuating cereal cover crops through self-seeding may increase adoption by reducing risk and cost. Winter rye (Secale cereale L.), wheat (Triticum aestivum L.), and triticale (x Triticosecale Wittmack) were used to develop self-seeding cover crop systems in a soybean [Glycine max (L.) Merr.]–corn (Zea mays L.) rotation. Cereal cover crops were planted in varying row spacing configurations and ...
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Comparison of certified and farm-saved seed on yield and quality characteristics of Canola
Relatively high seed prices and low canola (Brassica napus L.) grain prices created a controversy over using farm-saved seed from hybrids. Agronomic implications of saving seed from a canola crop were investigated by planting certified seed and saved-seed of an open-pollinated and a hybrid canola cultivar at eight site-years in Saskatchewan and Alberta, Canada. In one series of experiments ...
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Plan for success
Take a giant step ahead by using farm management software for your crop planning As the influx of agtech sweeps across fields today, the old adage that best-laid plans often go awry no longer applies to your farm. Crop plans may be as old as farming, but the latest in farm management software takes your farm’s success to a new level. “Crop plans may be as old as farming, but the ...
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EPA Sued Over Guidance Classifying Seeds Coated with Neonicotinoid Insecticides as Treated Articles Exempt from Registration under FIFRA
On January 6, 2016, a complaint was filed against the U.S. Environmental Protection Agency (EPA) in the United States District Court for the Northern District of California by a coalition of U.S. beekeepers, farmers, and affiliated non-government organizations (Petitioners). The Petitioners allege that EPA has allowed “the ongoing sale and use of unregistered pesticide products” ...
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Can pulse crops play a role in mitigating greenhouse gases from North American agriculture?
The atmospheric buildup of greenhouse gases (GHGs) is a serious environmental issue. Globally, agricultural activities are an important source of anthropogenic GHGs, contributing 20% of the annual atmospheric increase. Management choices largely determine if agricultural soils will be a source, a sink, or will be neutral with respect to GHG net flux. The proportion of agricultural land that is ...
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Cover Crop and nitrogen effects on maize productivity in no-tillage systems of the Brazilian Cerrados
Cover crops in direct seeding mulch-based cropping (DMC) systems can be an effective tool to optimize N management for crop production in the Brazilian cerrados. The objective of this study was to determine the effect of four cover crops on maize (Zea mays L.) grain yields in two fields that had been under DMC for 3 and 14 yr. We hypothesized that cover crops would optimize N supply to the maize ...
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How to get seed rates spot on for target market and harvest scheduling
Potato agronomy is complex and requires a lot of planning, monitoring and evaluation throughout the production process. CPM finds out how digital agronomy tool Crop4Sight can help in all three areas as preparation for the 2023 season gathers paceIf you fail to prepare, you prepare to fail – an adage that is very relevant when thinking about potato crop establishment, with half the agronomy done ...
By Crop4Sight
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Cuphea nitrogen uptake and seed yield response to nitrogen fertilization
Cuphea (Cuphea viscosissima Jacq. x C. lanceolata W.T. Aiton, PSR23) is an oilseed crop that is a rich source of medium-chain fatty acids. Progress has been made on improving cuphea agronomically, but little is known about N fertility requirements for optimum cuphea production. The objective of this study was to determine the N necessary for maximizing seed yield and oil content. Experiment 1 was ...
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Cover crop and nitrogen effects on maize productivity in no-Tillage Systems of the Brazilian cerrados
Cover crops in direct seeding mulch-based cropping (DMC) systems can be an effective tool to optimize N management for crop production in the Brazilian cerrados. The objective of this study was to determine the effect of four cover crops on maize (Zea mays L.) grain yields in two fields that had been under DMC for 3 and 14 yr. We hypothesized that cover crops would optimize N supply to the maize ...
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Neonicotinoid insecticide residues in soil dust and associated parent soil in fields with a history of seed treatment use on crops in Southwestern Ontario
Using neonicotinoid insecticides as seed treatments is a common practice in field crop production. Exposure of non‐target organisms to neonicotinoids present in various environmental matrices is debated. Concentrations of neonicotinoid residues were measured in the top 5 cm of soil and overlying soil surface dust before planting in 25 commercial fields with a history of neonicotinoid seed ...
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Dancing Bees Waggle the Way to Happier Habitat
Honeybee waggle dancers are helping researchers identify conservation best practices. The question scientists at the University of Sussex in the U.K. had was simple: Where do honeybees find food? But finding a way to answer that simple question seemed not so simple. Tiny radio or GPS trackers have a limited range, and it would take huge amount of work to survey fields on foot. Instead, ...
By Ensia
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Chemical-free disinfection of seeds for maximum yield
Seeds are the starting point for the majority of our food. Vegetables, cereals, fruits and many, many more products start as small seeds. It is no surprise that the seed market has kept growing over the past few years. In fact, the seed market is projected to grow even more, with a CARG of 3,4% from 2017 to 2023. Safe and delicate disinfection of seeds is a must in order to produce a healthy and ...
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Production of dryland barley for human food: quality and agronomic performance
Grain β-glucan content is the most important attribute for barley (Hordeum vulgare L.) varieties destined for the human food market. This trait is important because of the blood glucose and cholesterol-reducing properties of β-glucans. High levels of grain protein content, test weight, and seed size and endosperm color may also add value. Seed yield potential, in part, determines the ...
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The Importance of Leaf Area Index (LAI) in Environmental and Crop Research
Leaf Area Index (LAI), which is used as a measure in hundreds of studies on forests, crops, climate and the environment, is calculated as half the area of all leaves per unit area of ground. It is measured as the leaf area (m2 ) per ground area (m–2) and is unit-less. So, a plant with a LAI of 2 has an amount of leaves that can cover a given area two times. LAI is calculated for a plant or ...
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