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一九七三年陈井泉同志育出的裸粒水稻(下称裸稻原种),经十余代的系统选育,颖壳的特异性状能稳定地遗传给后代,但因结实率低(11～14%)和千粒重轻(11～12克)两项不良性状始终未能改善,因而不能直接投入生产应用.由于裸稻原种具有蛋白质含量较高(11.5%以上)和颖壳大,利于创造大粒型裸粒稻等有利因素,张跃龙等同志曾作过回交改造探讨.本研究是他们研究的继续,目的在于从回交后代中探索几个主要农艺性状的遗传规律和进一步了解回交的效益,为再研究提供参考.
After cultivating naked rice (hereinafter referred to as the “naked rice”) introduced by Comrade Chen Jingquan in 1973, the traits of glume shell can be stably inherited to the offspring after systematic generations of more than ten generations. However, ~ 14%) and one thousand kernel weight (11 ~ 12 g), which can not be directly put into production and application.As the raw rice has high protein content (11.5%) and large glume shell, which is good for Create large grain nude rice and other favorable factors, Zhang Yuelong and other comrades had made a backcross transformation.This study is the continuation of their research, the purpose is to explore the genetic law of several major agronomic traits and to further understand the backcross Benefit, for reference for further study.