... positive correlation 正相关 positive heterosis 正优势 post harvest control 收获后防治 ...
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positive e heterosis 正优势
positive superdominance heterosis 正显性超亲优势
·2,447,543篇论文数据，部分数据来源于NoteExpress
Yield, fruit weight, fruit number had the largest portion for positive heterosis in all crosses, fruit thickness were the smallest.
各杂交组合中正向优势所占比例较大的性状为产量、瓜重、采瓜数、瓜长；最小的为果肉厚。
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