Heterosis: nm In selective cultivation of plants, heterosis (from the ancient Greek heterosis, "change") refers to the increase in the capacities and or the biological vigor of a hybrid compared to pure lines resulting from selection by self-reproduction. The heterosis effect, in hybrids, is therefore inseparable from a prior pure line selection. The quality of the resulting hybrid depends on the joint heterotic qualities of the selected parents.
The heterosis effect, also named ...
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