Abstract: Dry mat ter accumulation of three lines at dif ferent grow th stage w ere tested , the results showed that as the biological yield , dry mat ter accumulat ion of sterile line Ning-A6 of plants and o rgans at different stage were approximate to that of maintainer Ning-B6 .Retainer line Ning-R6 showed the least dry matter accumulat ion at the same stage among parent s of three lines and was signif icantly lower then that of parent s of other two lines .As for the economical yield , Ning-A6 had mo re pods , less of seeds per pod , lower yield and productivity ,maintainer line had more pods , more of seeds per pod and yield , w hereas , retainer line had less pods , relatively higher yield and showed the highest productivi ty per plant .Ning-B6 showed the biggest seed/crest at the developmental stage , at the mature stage , it had the most dry mat ter accumulation per plant and organ among the three-lines parents .

Key words: Rape , Three-lines parents , Dry mat ter different accumulatio n

CLC Number: 

• S55.4