英语语法分析

Study on photoperiodic regulation of reproductive seasonality of Guangdong greylag geese.

研究了光照对广东灰鹅季节性繁殖活动和内分泌的调控。

The second photoperiodic reaction is controlled by a recessive gene.

第二光周期反应属一对主效隐性基因控制。

Study on photoperiodic regulation of reproductive seasonality of Guandong greylag geese;

研究了光照对马岗鹅季节性繁殖活动和内分泌的调控。