摘要： 测定宁杂1号三系亲本不同生育期干物质积累量可知:在生物学产量上,不育系宁A和保持系宁B的单株及各器官在各生育期的干物质积累量接近,同一生育期恢复系宁R1的干物质积累量远小于另外两亲本;在经济产量上,不育系宁A角果多,每角粒数少,单株生产力低,产量低,保持系宁B角果多,每角粒数多,单株生产力高,产量高,恢复系角果最少,每角粒数最多,单株生产力较高,产量较高;角果发育期以保持系宁B的粒壳比最大,角果成熟时,宁B的单株及各器官的干物质积累均为三系亲本中最大.

关键词: 油菜, 三系亲本, 干物质积累

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

中图分类号: 

• S55.4