- 行业: Agriculture
- Number of terms: 29629
- Number of blossaries: 0
- Company Profile:
A continual annual or periodic yield of plants or plant material from a given area. This implies that the management practices are such, that they will maintain the productive capacity of the land.
Industry:Agriculture
A slowdown in the (percentage) rate of increase of grain yield over time.
Industry:Agriculture
The maximum grain yield of a given variety in a given environment without constraints involving water, nutrients, competition, pests, diseases, or climatic conditions.
Industry:Agriculture
Trials in which the main objective is to determine and compare the yields of a cultivar against a check.
Industry:Agriculture
A decrease in grain yields over a period of at least several years.
Industry:Agriculture
The factors that contribute to grain yield--number of panicles per square meter, spikelets per panicle, percentage of fertile spikelets, and weight of each single grain.
Industry:Agriculture
The borer which attacks rice throughout its growth period. It lays its eggs near the tip of the leaf blade in oval masses of 50-200 eggs each, which hatch in 8 days. The larva is cream-colored and the head capsule is reddish brown. The pupa is yellowish white with a tinge of green, but turns dark brown just before emergence. The male moth is light brown with numerous small brownish dots along the subterminal area and near the tip of the forewing. The female adult is yellow, the color deepening toward the tip, and there is a very distinct black spot in the center of each forewing. The hindwings are pale and straw-colored. Scientific name: Scirpophaga incertulas.
Industry:Agriculture
Seedlings which have pale yellow leaves, but this condition is non-lethal.
Industry:Agriculture
A disease caused by rice yellow mottle virus. The virus disease can be transmitted by mechanical inoculation or vectored by the adult beetle Sesselia pusilla. It is characterized by stunting and reduced tillering of the infected rice plant; crinkling, mottling, and yellowish streaking of the leaves; malformation and partial emergence of the panicles and sterility.
Industry:Agriculture
