摘要
本文用中国91、峰丰和Tetep等三个高抗水稻条纹叶枯病品种与我国的沪选19、双丰一号和683糯等品种杂交,研究了水稻条纹叶枯病的抗性遗传。结果表明高抗对中抗为显性遗传,抗性受一对基因控制,并且细胞质对该病的遗传可能也有明显的作用。此外,品种的遗传背景对抗、感表达也存在一定的影响。研究还发现水稻条纹叶枯病的发病率和病情指数有极显著的回归相关关系,两者之间可以相互预测。
This paper reports the study on the inheritance of resistance to rice stripe virus With diverse materials including three foreign high resistant varieties (Zhongguo 91,Fengfeng, Tetep), three popularized varieties in China (Shuangfeng 1, Huxuan 19 683 Nuo) and their hybrid progenies. The results show that high resistance to medium resistance is dominance. The resistance is controlled by a pair of nuclear genes. And cytoplasim may affect the inheritance of resistance obviously. In addition, the genetic baskground materials have some effects on expression of resistance and infection, too. The study also shows that there is a very significant regression corrrelation between disease incidence(%) and disease index. Both can be used to forecast each other.
出处
《上海农业学报》
CSCD
1990年第4期33-37,共5页
Acta Agriculturae Shanghai
关键词
水稻
条纹叶枯病
抗性遗传
Rice, Rice stripe virus, Resistance inheritance, Regression analysis
