摘要
对甘兰型油菜７个亲本及２１个杂交组合苗期的酸性磷醚酶同工酶测定表明，凡具有杂种酶带的组合，都有产量优势，否则无杂种优势。具有２～３条酶带和酶活性强的组合，产量优势高；酶活性中等或较弱的组合，产量优势也属中等。只具一条酶带，但两亲本酶谱差异大，酶活性扳强的组合，产量优势强；酶活性中等或软弱的组合，产量优势中等；两亲酶谱差异不大、酶性软弱的组合，产量优势低。据此可早期预测甘兰型油菜杂种优势，减轻田间工作量和缩短选育周期。
This study employed 7 parents of rape ,21 F_1 inbreds were getten through completedialld crosoe design. It tested acid phosphatase isozym(APS) of the rape seedling of 7parents and 21 F_1 inbreds,All F_1 inreds that have inbred hands appear yield heterosis. TheF_1 inbreds having 2～3 inbred bands appear strong of mid yield heternsis.Strong or midyield heterosis is appeared in the Fi having one inbred and if both parents spectrums havingmore difference,on the contrary , weak yield heterosis is appeared.There are hardly andheterosis for the F_1 having parent or parent band type. APS isozyme is effective ways andmeans for calculation heterosis in the early stage of rape This method can reduce heavyyield works and short the time for selection stong F_1 inbreds.
出处
《西南农业大学学报（自然科学版）》
CSCD
1995年第5期399-403,共5页
Journal of Southwest Agricultural University
