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对9个水稻不育系与12个恢复系及其配制的53个杂交水稻组合在福建省将乐县黄潭、上杭县茶地的稻瘟病重病区进行了稻瘟病抗性鉴定,结果筛选出22个抗稻瘟病组合。对杂交组合与父母本的稻瘟病抗性进行相关分析,发现杂交组合的叶瘟和穗瘟与母本叶瘟均呈极显著正相关,而与父本叶瘟相关不显著。因此,在杂交水稻抗瘟性育种中,选用抗瘟性好的不育系作亲本配组尤为重要。
Nine rice CMS lines, 12 restorer lines and 53 hybrid rice combinations were selected to identify the blast resistance in the rice blast disease area in Huangtan, Shanghang, Fujian Province, and the results were screened Out of 22 blast combinations. The correlation analysis between the hybrid combinations and the parental blast resistance showed that there was a significant positive correlation between leaf blast and panicle blast of the hybrid combination and the leaf blast of the female parent, but not significant with the parental leaf blast. Therefore, it is very important to select the male sterile line with good blast resistance as the parental group in the hybrid rice blast resistance breeding.