- 行业: Agriculture
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The fertilized and ripened ovule of a seed plant, comprising a miniature plant usually accompanied by a supply of food (endosperm) enclosed in a protective seed coat, often accompanied by auxiliary structures, and capable, under suitable conditions, of independent development into a plant similar to the one that produced it. In rice, the grain is the common form of seed; the caryopsis is the true seed.
Industry:Agriculture
Solid particles transported and deposited by water, glaciers and wind.
Industry:Agriculture
Members of the family Cyperaceae. They bear a close resemblance to the grasses and can be distinguished by a thin triangular stem, the absence of ligules, and the fusion of leaf sheaths forming a tube around the stem.
Industry:Agriculture
A trisomic in which the extra chromosome is the isochromosome for one of the chromosome arms of the complement.
Industry:Agriculture
The cultivation that follows primary tillage; it breaks clods, incorporates plant materials into the soil, and levels the soil. It is often called harrowing or hoeing.
Industry:Agriculture
Pests which because of natural control agents normally have low populations and do not require chemical applications for control.
Industry:Agriculture
The branches that bear the spikelets arising from the primary branch of the panicle.
Industry:Agriculture
An infection resulting from inoculum arising from a primary infection.
Industry:Agriculture
The first differentiated leaf, with a blade and sheath.
Industry:Agriculture
