State;
Key;
Laboratory;
of;
Crop;
Genetics;
and;
Germplasm;
Enhancement,;
Nanjing;
Agricultural;
University,;
Nanjing;
210095,;
China;
Institute;
of;
Crop;
Sciences,;
Chinese;
Academy;
of;
Agricultural;
Sciences,;
Beijing;
100081,;
China;
光周期敏感性; 下游地区; 长江流域; 粳稻品种; 基因型; 抽穗期;