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1986—1988年对四个杂交粳稻组合F_1和F_2的产量及其主要经济性状进行了研究,结果表明:四个组合的F_2和F_1在产量及主要经济性状上的表现基本一致,F_2、不产生育性分离,株高和抽穗期分离不大,基本上是整齐的,充分说明这几个组合的F_2是可以利用的.还阐明了利用F_2组合应具备的几种条件以及应采取的栽培措施.
The yield and its main economic traits of F_1 and F_2 in four japonica hybrid rice combinations were studied from 1986 to 1988. The results showed that the performance of four combinations of F_2 and F_1 in yield and main economic traits was basically the same, F_2 did not produce Fertility segregation, plant height and heading stage separation is not big, basically neat, fully shows that these combinations F_2 can be used also clarified the use of F_2 combination should have several conditions and culture measures to be taken .