- 行业: Agriculture
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1). In insects, the reproductive body in which the embryo develops and from which the nymph or larva hatches. 2). In plants, the female ovum, pertaining to reproductive cells.
Industry:Agriculture
The influence of an external factor on the plant, e.g., drought, fertilizer, flooding. In statistics, that which is measured and analyzed as in treatment effect.
Industry:Agriculture
Soil conditions such as alkalinity, extreme acidity, iron toxicity, salinity, and zinc deficiency, which adversely affect plant growth.
Industry:Agriculture
The science that deals with the influence of soils on living things, particularly plants, including people's use of land for plant growth.
Industry:Agriculture
A mycorrhizal association in which the fungal hyphae form a compact mantle on the surface of the roots. Mycelial strands extend inward between cortical cells and outward from the mantle to the surrounding soil.
Industry:Agriculture
1).A major interacting system that involves both living organisms and their physical environment. 2). A system of ecological relationships in a local environment, including relationships between organisms and the environment itself.
Industry:Agriculture
A population within a species that has developed distinct physiological characteristics (e.g., herbicide resistance) in response to a specific environment which persist even if individuals are moved to a different environment.
Industry:Agriculture
The pest population density at which the loss caused by the pest is greater than the cost of controlling the pest. The pest density at which artificial control measures are economically justified.
Industry:Agriculture
