耐抽薹大葱雄性不育系200730A的选育及利用研究

摘要

With the male sterile plants of Japanese Tiegan green onion as infertility source , the bolting-resistant male sterile line 200730 A and its corresponding maintainer line 20070873 B were selected by test cross-backcross and self cross of test cross as well as recurrent male parent .The rate of sterile plants and fer-tile plants were both more than 99%.The selected sterile line showed late bolting , high combining ability and obvious heterosis .The hybridized combination Nongda Summer Onion NO .1 was obtained from the cross of male sterile line 200730 A and selfing line of Changbao green onion .It showed late bolting , high yield and good disease resistance;its yield could increase by 18 .41% averagely compared with Japanese green onion; so it was suitable for cultivation in Huanghuai region .%以日本铁杆大葱品种中发现的雄性不育株为不育源，用测交-回交及测交父本、轮回父本自交法，筛选出耐抽薹雄性不育系200730 A 和相应保持系20070873 B，不育株率和可育株率均达到99％以上。选育的不育系表现抽薹晚、配合力高、杂种优势明显。200730 A雄性不育系与长宝大葱自交系选配的杂交组合农大夏葱1号抽薹晚，产量高，比日本大葱平均增产18．41％，抗病性好，适宜在黄淮海区域种植。