- 行业: Agriculture
- Number of terms: 29629
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A viral disease caused by the rice necrotic mosaic virus (RNMV). Polymyxa graminis is considered to be the vector of the RNMV. The disease occurs in central and southern Japan. Infected plants have elongate or spindle-shaped, yellow flecks and streaks on the basal portions of stems and sheaths. Plants may be moderately stunted with reduced tiller number and spreading growth habit. It can be transmitted by mechanical means and through the soil. There has been no evidence that insects or seeds transmit the disease.
Industry:Agriculture
The growing and survival of the best adapted plants in a given location, with selection occurring naturally without human intervention.
Industry:Agriculture
Pollination of the plant by insects, wind, or floral parts without human intervention.
Industry:Agriculture
The notations for the genetic and zygotic (diploid) or somatic chromosome number of a plant, e.g., 2n = 24 in rice.
Industry:Agriculture
Clear polyester film that absorbs almost all radiation below 320 nm.
Industry:Agriculture
Trade name for a stiff, plastic-like film used in making insect cages.
Industry:Agriculture
The symbiotic association of the mycelium of a fungus with the roots of a seed plant. This symbiosis helps to extend the effective root surface area and promotes uptake of phosphorus.
Industry:Agriculture
A polymorphic microorganism that is nonmotile and that can be cultivated with difficulty on special media, and that lacks cell wall, being bound only by a unit membrane. The internal components of a mycoplasma are ribosome and DNA strands.
Industry:Agriculture
