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福建省龙岩地区农科所,去年在吸收湖南黔阳农校、中国农科院等单位研究水稻雄性不育的经验的基础上,提出了培育保持系的一种方案——选择自交法。现介绍如下:第一步:利用不育株与品种的不同植株进行测交,同时将这些品种的其它植株套袋自交。将测交和自交所结种子收下,以作第二季种植。第二步:观察测交和自交后代的雄性表现,进行选择:凡测交种雄性表现部分不育,而自交后代雄性正常的组合留下,我们所要培育的保持系客观存在于该组合的父本自交后代中,其它组合(测交种和自交后代全部为正常株或全部为部分不育株)予以淘汰。
Longyan Prefecture Agricultural Science Institute of Fujian Province last year in absorbing Hunan Qiangyang Agricultural School, Chinese Academy of Agricultural Sciences and other units of rice male sterility on the basis of experience, put forward a program to cultivate and maintain the line - the choice of self-law. Are introduced as follows: The first step: the use of sterile plants and varieties of different plants for cross test, at the same time these other varieties of self-bagging bag. The test cross and self-made seeds closed for planting in the second quarter. Step 2: Observe the male performance of the cross and selfing offspring, and make the choice: Where the male part of the tested cross is male sterile and the male normal self-cross is left behind, the maintainer we want to cultivate objectively exists in the combination Of the male parent selfing offspring, the other combinations (test cross and selfing offspring all normal strains or all part of sterile plants) to be eliminated.