- 行业: Agriculture
- Number of terms: 29629
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A gene with a clear-cut phenotype (and often a known location on a chromosome) that is used as a point of reference when mapping or selecting another gene at a nearby locus.
Industry:Agriculture
The increase in net benefit which can be obtained by changing from one production alternative to another; it is often measured relative to adding a marginal unit of input.
Industry:Agriculture
The increase in variable cost which occurs in changing from one production alternative to another; it is often measured relative to adding a marginal unit of input.
Industry:Agriculture
Diagrams showing physical features, roads, town, etc. The ordered arrangement of genes or molecular markers of an organism, indicating the position and distance between the markers and loci.
Industry:Agriculture
Use of the cleared mangrove forest land for rice production.
Industry:Agriculture
Tropical or subtropical vegetation (mainly trees) typical of tidal swamps.
Industry:Agriculture
A plant having no pollen grains or nonfunctional pollen grains and therefore is unable to fertilize the embryo.
Industry:Agriculture
