CAJ | 학술논문

[目的]研究双低杂交油菜各产量构成因素与单株产量间的关系,为突破油菜产量限制屏蔽、培育双低高产杂交油菜品种提供参考依据.对四川省油菜区域试验中2个高产双低杂交油菜组合(代号为B02、D04)及双低对照种蜀杂6号进行了产量构成因素与单株产量的相关和通径分析及比较.[结果]在高产双低组合及蜀杂6号中,单株有效角果数与每角粒数、每角粒数与千粒重均为负相关;在高产双低组合中,单株有效角果数、每角粒数对单株产量的贡献大于千粒重对单株产量的贡献,差异达0.01显著水平;在双低对照品种蜀杂6号中,单株有效角果数、每角粒数对单株产量的贡献大于千粒重对单株产量的贡献,但差异不显著.[结论]可把提高单株有效角果数作为四川双低高产杂交油菜育种工作的重要目标之一.
[목적]연구쌍저잡교유채각산량구성인소여단주산량간적관계,위돌파유채산량한제병폐、배육쌍저고산잡교유채품충제공삼고의거.대사천성유채구역시험중2개고산쌍저잡교유채조합(대호위B02、D04)급쌍저대조충촉잡6호진행료산량구성인소여단주산량적상관화통경분석급비교.[결과]재고산쌍저조합급촉잡6호중,단주유효각과수여매각립수、매각립수여천립중균위부상관;재고산쌍저조합중,단주유효각과수、매각립수대단주산량적공헌대우천립중대단주산량적공헌,차이체0.01현저수평;재쌍저대조품충촉잡6호중,단주유효각과수、매각립수대단주산량적공헌대우천립중대단주산량적공헌,단차이불현저.[결론]가파제고단주유효각과수작위사천쌍저고산잡교유채육충공작적중요목표지일.
[Objective] The experiment aimed to study the relation between yield components and yield per plant of double-low hybrid rapeseed and provide reference for breaking yield limitation of rapeseed and culturing new double-low hybrid rapeseed variety. [Method]The yield components and yield per plant of two cross combination of double-low hybrid rapeseed (B02, D04) and Shuza 6 were correlatively analyzed and compared, besides, the path analysis was also carried on to them. [Result] Among B02, D04 and Shuza No.6, effective pod number per plant and seeds per silique, seeds per pod and 1 000-grain weight were all negative correlation. In high yield hybrid, pod number per plant, seeds per pod had more impaction on yield per plant than 1 000-grain weight and the difference was at 0.01 significant level. In the control variety Shuza No.6, the impactions of pod number per plant and seeds per pod on yield per plant were bigger than that of 1 000-grain weight on yield per plant, however, the difference was not significant. [Conclusion] The improvement of effective pod number per plant was an important aim of breeding work of double low rapeseed breeding in Sichuan ecological region.