crop resistance Articles
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Social resistance to biotechnology: attempts to create a Genetically Modified-free territory in Brazil
This paper looks at the attempt to create a territory free of transgenic crops in the state of Rio Grande do Sul (RS) Although the state government had legal grounds under federal law and court decisions that banned these crops in Brazil, resistance by groups representing local farmers managed to disseminate the planting of transgenic soybeans in the state. The reasons for the government's ...
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Anisotropic flow resistance theory and experimental verification on partially submerged crop vegetation
The presence of orderly arranged rows and spacing of crop vegetation increases the anisotropy of the Earth's surface, and affects the resistance of the surface to overland flow. However, few studies have addressed how the orderly arrangement of crop vegetation affects the resistance of the surface to overland flow. In the present study, we consider that flow resistance has anisotropic ...
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Effects of the herbicide dicamba on non‐target plants and pollinator visitation
Nearly 80% of all pesticides applied to row crops are herbicides, and these applications pose potentially significant ecotoxicological risks to non‐target plants and associated pollinators. In response to the widespread occurrence of weed species resistant to glyphosate, biotechnology companies have developed crops resistant to the synthetic‐auxin herbicides dicamba or 2,4‐D, and once ...
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The impact of using GM insect resistant maize in Europe since 1998
Genetically Modified (GM) insect resistant (Bt) maize crops have been grown commercially in the European Union (EU) since 1998, and in 2006, there were plantings in seven EU member states. This paper reviews the specific economic impacts on yield and farm income as well as the environmental impact in respect of insecticide usage (where data exists). The analysis shows that there have been ...
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Potassium and winter hardiness
The role of Potassium in metabolic processes such as protein synthesis and the movement of sugars within the plant is now well understood and recognised as crucial for maximising quality and yield. But it is now known Potassium also plays a significant role in helping crops resist disease and environmental stresses during winter dormancy and ensuring optimum supplies of Potassium to see crops ...
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Intercropping different varieties of radish can increase cadmium accumulation in radish
Genetic diversity has supplied effective ways to improve crop yields and disease resistance. Therefore, we may be able to reduce crop uptake of heavy metals by collecting germplasm resources. In this study, cadmium accumulation and nutrients in radish was investigated by intercropping three genotypes (red, green, and white radish) in different combinations. Both pot and field experiments ...
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The economic impact of transgenic crops in developing countries: a note on the methods
A vast literature has accumulated since crop varieties with transgenic resistance to insects and herbicide tolerance were released to farmers in 1996 and 1997. A comparatively minor segment of this literature consists of studies conducted by agricultural economists to measure the farm-level impact of transgenic crop varieties, the size and distribution of the economic benefits from adopting them ...
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Operation precautions of NPK fertilizer granulation coating
In the NPK fertilizer manufac?turing process, a coating process is added to make a slow-release fertilizer. Slow-release fertilizer is also called controlled-release fertilizer. The release rate of nutrients in fertilizers can be controlled to a certain extent for continuous absorption and utilization by crops. After the fertilizer is coated, it can reduce the loss of fertilizer nutrients, ...
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The influence of biowaste and garden waste composts on diseases caused by pythium ultimum and rhizoctonia Solani related to the antagonists trichoderma hamatum and flavobacterium balustinum
Soilborne plant pathogens can cause serious losses on both agricultural and horticultural crops. Examples include damping-off diseases caused by Pythium spp. and Rhizoctonia spp., Pythium and Phytophthora root rots, Rhizoctonia crown rot, Fusarium and Verticillium wilts, nematode and even bacterial diseases. Until the fifties, the principal methods to control soilborne diseases were through the ...
By ORBIT e.V.
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Seaweed extract uses in agriculture
In recent years, the damage caused by the blind and excessive application of chemical fertilizers and pesticides has become more and more serious. To develop ecological agriculture, we must vigorously promote the use of biological fertilizers and pesticides. The abundant marine biological resources are a material treasure house for the development of ecological agriculture. Seaweed extracts is ...
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Global warming to result in widespread crop loss to insects
Rice, corn and wheat loss rates could rise by up to 25% with every 1˚C increase to global temperatures as insects start to eat and breed more, new research has found. Led by researchers at Washington University, the study forecasts global warming of 2˚C to push the losses of these three crops up to approximately 213 million tons every year. This could have severe implications ...
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Ancient roots of wheat virus resistance
The DNA sequence of a gene responsible for resistance to a devastating virus in wheat has been discovered, providing important clues for managing more resistant crops and maintaining a healthy food supply. Wheat crops in the Americas, Asia, Europe, and Africa are regularly damaged by wheat yellow mosaic virus (WYMV), and there is a high demand for wheat varieties or cultivars that are resistant ...
By Lifeasible
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Production status of bio organic fertilizer
The fertilizer produced by bio organic fertilizer equipment can improve soil ecological environment and change soil microbial flora, and play a more important role in reducing crop diseases and insect pests. In the process of microbial growth and reproduction, it can secrete a variety of antibiotics and plant growth and elements. It can not only inhibit the activities of plant pathogenic ...
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Watering Scarcity: Private investment opportunities in agricultural water use efficiency
This report was prepared by Rabobank in collaboration with the World Resources Institute. In many regions around the world, demand for fresh water now outstrips renewable supplies. Water scarcity is projected to worsen considerably due to a combination of factors such as population increase, higher incomes and changing lifestyles, pollution, and climate change. Agriculture is by far the biggest ...
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Plants Activate `Wartime` Protein Production to Fight Invasion
Plants are constantly attacked by bacteria, viruses and other pathogens. When a plant senses a microbial invasion, fundamental changes occur in the chemical soup of proteins inside its cells, the workhorses of life. In a new study published in Cell, Duke University researchers have uncovered a key ingredient in plant cells that reprograms their protein-making machinery to fight disease. Crop ...
By Lifeasible
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What is the difference between organic fertilizer and compound fertilizer?
Now agricultural production basically uses fertilizers, including organic fertilizer and compound fertilizer, which have auxiliary effects on crop growth and yield respectively. But some farmers think that organic fertilizer is good and compound fertilizer is harmful. What is the difference between them? What are the functions of organic fertilizer and compound fertilizer? Next, let's learn about ...
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Environmental Groups File Opening Briefs Challenging EPA’s Decision to Register Enlist Duo
On October 23, 2015, in the U.S. Court of Appeals for the Ninth Circuit, the Natural Resources Defense Council (NRDC) and other environmental groups including the Center for Food Safety (CFS, et al.) (together, Petitioners) filed separate opening briefs in Case Nos. 14-73353 and 14-73359 (consolidated) arguing that the U.S. Environmental Protection Agency’s (EPA) decision to register Dow ...
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Can genetic engineering help quench crops’ thirst?
Researchers around the world are exploring how GMO technology might boost food production under hot, dry conditions. Roger Deal is trying to figure out how plants remember drought. An assistant professor of biochemistry and genetics at Emory University, Deal says most plants have a kind of memory for stress. When experiencing water shortage, for example, plants close the holes in their leaves, ...
By Ensia
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How `open source` seed producers from the U.S. to India are changing global food production
Around the world, plant breeders are resisting what they see as corporate control of the food supply by making seeds available for other breeders to use. Frank Morton has been breeding lettuce since the 1980s. His company offers 114 varieties, among them Outredgeous, which last year became the first plant that NASA astronauts grew and ate in space. For nearly 20 years, Morton’s work was ...
By Ensia
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The sensitivity ratio: A superior method to compare plant and pathogen screening tests
There are numerous plant disease-screening methods used to identify resistance in various crops. It is common practice to prefer the screening method with the smallest root mean square error (RMSE), least-significant difference (LSD), or coefficient of variation (CV). However, valid comparison based on the RMSE or LSD requires both methods to have the same scale while the CV is only applicable if ...
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