摘要
用大豆M型质核互作雄性不育系W 931A作母本配制了 2 2个杂交组合 ,对其F1、F2 进行产量测定表明 :所有杂交组合的F1都具有超亲优势 ,变幅为 3.78% - 132 .16 % ,平均超亲优势为4 4.2 2 % ,其中 19个杂交组合的F1具有超标优势 ,变幅为 6 .0 4 % - 6 6 .0 4 % ,平均超标优势为31.0 6 % ;F2 代的超亲优势平均为 3.18% ,超标优势平均为 - 6 .2 4 %。统计结果认为 :F1的产量优势与恢复系 (父本 )的来源关系密切 ,来自南方父本的杂交组合的超亲和超标优势分别比黄淮父本的杂交组合高 2 2 .93%、2 4 .83% ;F2 代杂种优势衰退显著 ,不宜利用。
Heterosis of F 1 and F 2 generations yield of 22 cross combinations with soybean M type male sterile lines W931A as female parent had been tested. The results showed: average over-parent heterosis of all F 1 generations yield reached 48.96%, ranging from 3.78% to 132.16%. Among these combinations, average over-standard heterosis of F 1 generation yield of 19 combinations reached 31.06% ranging from 6.04% to 66.06%. Over-standard heterosis and over-parent heterosis of F 2 generations yield reached 8.30% and -6.24% respectively. The results also showed: heterosis of F 1 generations yield was closely related to the geographical origin of restoring lines(male parent). Over-parent heterosis and over-standard heterosis of the combinations yield from south ecological area were stronger 22.93% and 24.83% than that from Huanghuai ecological area respectively. Heterosis of F 2 generation yield depressed obviously and was unsuitable to be utilized.
出处
《大豆科学》
CAS
CSCD
北大核心
2002年第4期241-244,共4页
Soybean Science
基金
安徽省自然科学基金 (项目编号 :0 10 4110 9)
国家高科技计划"863"(项目编号 :2 0 0 1AA2 410 71)资助项目。
