Biotic threats
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Their management relies primarily on agrochemicals with short persistence; widespread use of these chemicals causes environmental and human health problems. The challenge of sustainable viticulture is to provide ecologically sound alternatives. In this regard, the application of entomopathogenic nematodes (EPNs) and natural products derived from their symbionts can be an alternative. EPNs are well-known biocontrol agents for soil-dwelling insects.
12p dolomite36 30-12-2021 11 0 Download
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Mechanical damage is an unavoidable threat to the growth and survival of plants. Although a wound to senescing (lower) leaves improves plant vitality, a wound to younger (upper) leaves often causes damage to or death of the whole plant. Source-sink models are often used to explain how plants respond to biotic or abiotic stresses.
14p vijichea2711 28-05-2021 6 1 Download
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Rice is an important food crop extensively grown in India. Several factors are responsible for reducing the rice productivity in worldwide. However, weed infestation is the major biotic threat to productivity of transplanted rice. Weeds are competed with rice by their high adaptability and faster growth, dominate the crop habitat and reduce the yield potential of rice. Weed management is an important agro-technique for successful transplanted rice cultivation. It can be achieved, either manual or mechanical or chemical weed control methods.
9p caygaocaolon6 30-07-2020 9 1 Download
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Accelerated exploitation of oil and gas resources planned and implemented by ONGC and BGEIPL in west coast offshore region would result into stress particularly on marine environment. The long term physical, chemical and biological changes due to routine discharges from offshore installations can best be assessed through a study on accumulation of hydrocarbons and heavy metals in fishes, plankton and sediments which together form biotic and abiotic components of marine environment.
10p chauchaungayxua6 26-06-2020 15 2 Download
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Due to climate change, abiotic and biotic stresses like soil salinity, drought, pH, high temperature and plant fungal diseases are major threat for agriculture production and which reduces the growing demand of food of the population. To cope the adverse effect of such stresses, use of wide variety of synthetic chemical fertilizers cause serious hazardous effects on environment, soil, water and human health. Use of microorganisms as a bioinoculants is a new green eco-friendly technology for sustainable agriculture production and can lessen the effect of these stresses.
13p nguathienthan5 04-06-2020 11 0 Download
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White root rot (WRR) disease caused by Rosellinia necatrix is one of the most important threats affecting avocado orchards in temperate regions. The eradication of WRR is a difficult task and environmentally friendly control methods are needed to lessen its impact.
15p viharuno2711 21-04-2020 12 1 Download
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Intensity of drought stress and pest attacks is forecasted to increase in the near future posing a serious threat to natural and agricultural ecosystems. Knowledge on potential effects of a combined abiotic-biotic stress on whole-plant physiology is lacking.
11p viharuno2711 21-04-2020 9 1 Download
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Blackgram (Vigna mungo (L.) Hepper) (2n=22) is one of the most highly valuable pulse crop, cultivated in almost all parts of India. It is a good source of easily digestible proteins, carbohydrates and other nutritional factors. Besidesvarious biotic and abiotic constraints, viral diseases mostly yellow mosaic disease is the prime threat for extensive economic losses in areas of production.
8p kethamoi4 16-04-2020 13 0 Download
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The changing global climatic scenario is a serious threat to the field of plant disease management. Reckless use of traditional agrochemicals is augmenting risks of environmental and ecological hazard with a negative impact on available resources in managing plant diseases. Frequent use of toxic agrochemicals poses threat not only to the abiotic components but also are of serious concern to the biotic factors of our ecosystem. The era demands incessant exploration in the innovative and opportunistic strategies which have greater impact with minimal use in eliminating plant diseases.
6p chauchaungayxua4 18-03-2020 19 0 Download
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Biotic stresses are a potential threat to global food security. The origin of new pathogens and insect races due to climatic and genetic factors is a major challenge for plant breeders in breeding biotic stress resistant crops.
16p danhdanh11 11-01-2019 28 2 Download