油菜品种筛选试验研究

Studies on Rape Variety and its Screening

通过2007～2008年两年试验,对云南省新育成的一批甘蓝型双低油菜新品种,进行不同生态条件下的丰产性、稳产性、抗逆(病)性及区域适应性的综合鉴定,为油菜新品种审定、推广利用提供科学依据。试验采取完全随机区组排列,3次重复,小区净面积13.5m2,基本苗15.0万株/hm2,试验结果,测定了优质油菜品种产量、经济性状、生育期、抗逆(病)性和品质等多项指标,综合评价、筛选出最好的双低油菜新品种KT0601(2007年产量居参试品种第2位,产量5187.8kg/hm2,较对照增产663kg/hm2,增幅14.7%)、20-5-26(2年均居参试品种首位,2007年度产量5337.8kg/hm2,较对照增产813kg/hm2,增幅18.0%;2008年度产量4862.3kg/hm2,较对照增产849.8kg/hm2,增幅21.2%),适合在云南保山市大面积推广应用;20-5-14表现较好,下年可进行示范种植;KT0607、KT0610可续试1年;KT0604各方面表现均较差,抗逆性较弱,可淘汰。

Comprehensive identificated a group of cabbage double-low rapeseed new varieties, in Yun Nan Province from 2007 to 2008, about its high-yield, stability, resistance and regional adaptability in different ecological conditions, which provided scientific basis for auditing and promoting the use of rape new varieties. The tests were completely random group. Repeated three times. The quarter net area was 13,5 m^2,The basic miller was 150 000strain/hm^2 .The test results tested the yield of the high-quality rape variety, its economical trait and growth stage .disease resistant and quality .and a number of indicators comprehensive evaluating and screening the best double-low new rape variety .KT0601 （It, s in the second place in senate varieties in 2007, The yield was 5187.8 kg/hm^2 and it was 663 kg/hm^2 than the control output , increasing by14.7%）, 20-5-26 （It, s in the first place in senate varieties in 2007-2008, The yield was 5337.8kg/hm^2 and it was 813kg/hm^2 than the control output, increasing by 18.0%; The yield is 4862.3 kg/hm^2 in 2008 , and it is 849.8 kg/hm^2 than the control output, increasing by21.2% ）, which are suitable for promoting the use in the large area of Bao shan city. Yun Nan; 20-5-14 performants better, it can be model cultivation next year; KT0607, KT0610 can be continued trial for a year; KT0604 performants worse in different abstracts, Its resistance is weaker and it can be out.