中国玉米骨干亲本黄早四杂种优势形成的遗传基础解析

李永祥,李春辉,杨俊品,杨华,程伟东,汪黎明,李凤艳,李会勇,王延波,李淑华,扈光辉,刘成,黎裕,王天宇

Genetic Dissection of Heterosis for Huangzaosi, a Foundation Parental Inbred Line of Maize in China

LI YongXiang,LI ChunHui,YANG JunPin,YANG Hua,CHENG WeiDong,WANG LiMing,LI FengYan,LI HuiYong,WANG YanBo,LI ShuHua,HU GuangHui,LIU Cheng,LI Yu,WANG TianYu

表1 中国玉米NAM测交群体的产量及重要农艺性状统计分析

Table 1 Statics of yield and important agronomic traits for Chinese maize NAM test-cross populations

性状 Trait 昌7-2组合 CH7-TCs 郑58组合 Z58-TCs Mean ± SD CV (%) h2 Mean ± SD CV (%) h2 吐丝期 DTS 69.44±1.27 1.87 0.76 64.33±1.29 2.02 0.80 株高 PH (cm) 248.31±11.61 4.67 0.85 224.14±13.94 6.20 0.92 穗行数 KRN 15.49±0.87 5.81 0.87 14.11±0.90 6.38 0.90 行粒数 KNPR 33.04±1.59 4.85 0.72 33.12±1.92 5.74 0.80 百粒重 KWPH (g) 26.90±1.68 6.32 0.82 34.78±2.18 6.32 0.76 单穗产量Ear yield (g) 136.06±9.41 6.91 0.69 155.19±10.80 6.96 0.73 小区产量Plot yield (kg) 2.38±0.17 8.33 0.65 2.83±0.24 7.14 0.74