Special attention should be given to the decrease of the additive variance of yield trait, and this will most possibly make genetic background narrow.
值得注意的是，产量性状的加性方差有降低的趋势，遗传基础可能变窄。
Assist Testing Manager on yield trial location deployment and management in Shandong and Hebeiprovince, and take charge of trait investigation and data summarization.
协助产量测试经理进行山东、河北育种试验点的设置、管理、性状调查和数据汇总。
The genetic characteristics of quality trait and correlation with yield for maize inbred have been studied by using dual crosses of 8 inbreds and their corresponding 28 crosses.
采用8个典型玉米自交系及其组配的28个双列杂交组合（不含反交）为试材，对玉米自交系品质性状的遗传特性与产量的相关性进行了研究。
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