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对导入Suwan1玉米种质选育自交系的评价
引用本文:闫淑琴, 苏俊, 李春霞, 龚士琛, 宋锡章, 李国良, 扈光辉, 王明泉, 邵淑华.对导入Suwan1玉米种质选育自交系的评价[J].玉米科学,2007,15(1):062-066.
作者姓名:闫淑琴  苏俊  李春霞  龚士琛  宋锡章  李国良  扈光辉  王明泉  邵淑华
作者单位:1. 黑龙江省农科院玉米所,哈尔滨,150086
2. 黑龙江省密山市裴德镇农技推广站,黑龙江,密山,158306
摘    要:试验选用地方常用系甸骨11A、红玉米、长3、Mo17、黄早四导入Suwan1种质选育的自交系5份,分别与选定测验种杂交。通过改良系与未改良系、改良杂交种与未改杂交种的比较,结果表明改良系生育期延后,穗行数增加、百粒重下降、单株产量提高,增产幅度在3.9%~43.5%。改良系与选定测验种的杂种优势表现:甸骨11A改良系与红玉米、红玉米改良系与甸骨11A、长3改良系与海014的产量对照优势显著高于相邻对照;红玉米改良系与C500、Mo17改良系与B73和444的产量对照优势为正,长3改良系与龙抗11,黄早四改良系与Mo17和8112的产量对照优势为负,但与相邻对照差异均不显著;甸骨11A改良系与早大黄的产量对照优势为负并差异显著,其杂交种丝黑穗发病率25.3%。

关 键 词:Suwan1种质  改良自交系  改良杂交种  对照优势
文章编号:1005-0906(2007)01-0062-05
收稿时间:2005-04-14
修稿时间:2005-05-15

Evaluation on Selection of Inbred Lines Introduced with Suwan1 Maize Germplasm
YAN Shu-qin; SU Jun; LI Chun-xia; GONG Shi-shen.Evaluation on Selection of Inbred Lines Introduced with Suwan1 Maize Germplasm[J].Journal of Maize Sciences,2007,15(1):062-066.
Authors:YAN Shu-qin; SU Jun; LI Chun-xia; GONG Shi-shen
Institution:Maize Research Department of Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
Abstract:The experiment adopted 5 inbred lines selected by introduction of suwan1 germplasm which were the common local lines: Dian11Htl,red maize,Chang 3,Mo17,Huangzaosi to hybridize with selected testing species.The heterosis between improved lines and non-improved lines,improved crossbreed and non-crossbreed proved that the birth period was delayed,the row number was increased,100-kernel weight was reduced,weight of grain per plant was rising,and the yield increases from 3.9% to 43.5%.The heterosis of hybridization between improved lines and selected testing variety prove that the yield heterosis between improved Dian11Htl lines and red maize,improved red maize and Dian11Htl,improved Chang 3 lines and Hai 014 was much higher than the near contrasts.The yield heterosis between improved red maize lines and C500,improved Mo17 and B73 and 444 were positive.The yield heterosis between improved Chang 3 lines and Longkang 11,improved Huangzaosi lines with Mo17 and 8112 were negative,but the differences from near contrasts were not significant.The yield heterosis between improved Dian11Htl lines Huangzaosi is negative and the difference was very large and the incidence of hybrid head smut was reaches 25.3%.
Keywords:Suwan1 germplasm  Improved inbred lines  Improved crossbreed  Contrast heterosis
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