摘要
Abstract
The paper studied the super-midparental heterosis and high value parent advantages on fifteen characters of Dian-type hybrid rice F1,such as plant height,panicles per plant,ear length,the grains,grain density,seed setting rate,grain weight,10-grain long,10-grain wide,brown rice rate,milled rice rate,milled rice rate,percentage of chalky grains,chalky whiteness,rice grain length proportion.The results showed that the combination which took Dianjingyou 5 and Zhongdan 2 as the female parent had strong advantages in yield traits,the advantages in the quality traits were not significant,but the combination with the same female parent and different male parent effected the advantage.The combination which took Dianjingyou 1 as femail parent had no significant advantage.The problems on lower seed seeting rate and lower grain of hybrid rice needed to be studied.关键词
滇型杂交粳稻/杂种一代/超中亲优势/超高值亲本优势Key words
Dian-type hybrid rice/first-filial generation/super-midparental heterosis/high value parent advantages.分类
农业科技
