论文部分内容阅读
在抗芜菁花叶病毒和霜霉病研究工作的基础上,利用杂种优势育种技术,以SW-13自交不亲和系为母本,V-126和X-189自交系为父本,选育出综合性状优良的矮抗五号和矮抗六号新品种。其特点:(1)丰产:生产试验平均产量分别达57.2和63.6t/hm2,比对照矮抗一号分别增加12.8%和25.3%;(2)抗病:两品种TuMV、霜霉病、黑斑病人工鉴定病情指数分别为4.01(HR),12.09(R),12.96(R)和1.54(HR),9.17(HR),23.42(R);(3)优质:叶片重/叶柄重分别比对照提高13.5%和25.0%,且有机酸含量低;(4)耐热:热害指数分别比对照矮杂一号(42.50)降低了100%和278%。
Based on the research work on anti-turnip mosaic virus and downy mildew, SW-13 self-incompatibility line was used as female parent and V-126 and X-189 inbred lines as male parent , Bred a good comprehensive traits of short resistance on the 5th and short resistance on the 6th new varieties. Its characteristics: (1) High yield: the average yield of production test reached 57.2 and 63.6t / hm2, respectively, which increased by 12.8% and 25.3% The disease index of TuMV, downy mildew and black spot were 4.01 (HR), 12.09 (R), 12.96 (R) and 1.54 (HR), 9.17 23.42 (R); (3) high quality: the leaf weight / petiole weight increased by 13.5% and 25.0% respectively compared with the control, and the content of organic acids was low; (4) Heat tolerance: Zumba (42.50) decreased by 100% and 278% respectively.