(3) 继承了前人采用的正反交（reciprocal cross），为以后区分伴性遗传和细胞质遗传打下基础。(4) 设立对照实验：将盆栽的植物移到温室内和大田种植的作对照，以排除虫媒的干扰。
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reciprocal cross effect 正反交效应
cross and reciprocal cross 正交和反交
reciprocal cross reaction 交互交叉反应
Objective To study growth regular of reciprocal cross of Suju,Minghu silkworms.
目的研究苏菊、明虎桑蚕正反交生长规律。
参考来源 - 桑蚕苏菊·明虎正反交生长规律研究·2,447,543篇论文数据，部分数据来源于NoteExpress
同义词： reciprocal
以上来源于: WordNet
There were some differences to reciprocal cross.
正反交结果有一定的差异。
In this paper, the reciprocal cross was made between octoploid triticale and common wheat.
本文用八倍体小黑麦与普通小麦进行正反交。
Antisera against KLH induced positive CHR but not positive COP. The results of reciprocal inhibition experiment indicated that there is a partial cross antigenicity between KLH and SEA.
抗KLH血清引起阳性的尾蚴膜反应但不引起阳性的环卵沉淀试验，与可溶性虫卵抗原的交互抑制试验结果表明二者的抗原性部份交叉。
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