【摘要】 以弱再生力的矮南早和强再生力的蜀丰1号-11为测验亲本,运用正反交6个群体的组配设计,分别测定太国稻选、湘早籼26和红梅早的再生力遗传;结果:（1）矮南早参与组合的F₁（和反交F₁）杂种优势,均低于蜀丰1号-11参与组合;（2）蜀丰1号-11/太国稻选表现明显胞质效应,蜀丰1号-11/湘早籼26和蜀丰1号-11/红梅早则不明显;（3）再生力特性狭义遗传力估计值随组配亲本遗传背景不同,表现显著或不显著;基因效应分析表明,再生力一般存在加性效应。上述结果,从遗传理论上展示,选育具有强再生力的新品种或杂交稻是可能的,而正确选配亲本及适当组配方式具有突出重要的意义。更多还原

【Abstract】 Ai-Nan-Zao, a weak ratooning variety and Shu-Fong No.1 （11）, a stronger ratooning one were used as the testers which were mated reciprocally with Tai-Guo-Dao-Xuan, Shang-Zao-Xian No. 26 and Hon-Mei Zao respectively in accordance with the pairing design of six generations. Their inheritances of ratooning ability were tested.The following results were obtainesd: （1） All of the F₁ （or F₁^’） coming from the crosses with Ai-Nan-Zao generally showed lower heterosis than those from the crosses with Shu-Fong No.1 （11）; （2） The cytoplasmic effect was observed in the cross of ShuFong No.1 （11）/Tai-Guo-Dao-Xuan, but no significant effect in Shu-Fong No. 1（11）/Shang-Zao-Xian No. 26 and Shu-Fong No.1 （11）/Hon-Mei-Zao; （3） It was also observed that the estimates of narrow heritability on ratooning ability varied very much with the different hereditary background of mated parents. The additional effect on ratooning ability occurred generally in the analysis of gene effect.The above results brought to light a possibility of breeding a new variety or hybrid rice with strong ratooning ability in the genetical theory, and it is very important to select right parents and to mate with the optimum mode.更多还原