在亲本选配中，尽量提高双亲性状的表现，以取得较大的杂种优势。
The biggest heterosis will be obtained by improved the performance of parents' characters in parents' apolegamy.
互作效应普遍存在，是烟草性状杂种优势表现的主要原因之一。
The epistatic effects could not be ignored in tobacco breeding. They were one of main causes of heterosis for most characters.
但单株籽粒蛋白质产量表现正向杂种优势，平均17.20%。
But the average heterosis of all hybrids in grain protein yield per plant was 17. 20%.
根据过氧化物酶同工酶或酯酶同工酶谱带的变化很难预测玉米杂种优势的表现。
It is difficult to forecast maize heterosis based on the changes of peroxidase and e...
根据过氧化物酶同工酶或酯酶同工酶谱带的变化很难预测玉米杂种优势的表现。
It is difficult to forecast maize heterosis based on the changes of peroxidase and e...
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