通过标记辅助选择获得的改良材料为三系杂交稻恢复系的培育提供了稻瘟病抗性亲本。
The improved lines can be used as candidate parental lines for rice breeding with blast resistance.
利用这项技术可望解决三系、两系或化学杀雄杂交稻制种过程中出现的纯度问题，且有利于新杂交稻组合的选育。
Using this technology, the purity problem during seed production in three-line, two-line or chemical-emasculated hybrid rice breeding system could be solved and some new combinations could be bred.
群体光合作用和衰老特性的差别主要在组合间，而不在两系和三系两种类型之间，两系杂交稻未有明显的优势。
Significant differences were observed within the same kind of hybrid rice but not between the two kinds of hybrids, so did for the canopy photosynthetic rate of these hybrids.
1990年，采用病区病圃剪叶接种法，对杂交稻三系资源及组合3098份进行了鉴定。
In 1986-1990 the leaf inoculation method was used in a diseased area or nursery to identify 3098 three line materials and rice hybrids.
研究了杂交稻及其三系叶片衰老过程中叶绿体数量和结构的变化。
The structure and Numbers of chloroplasts were investigated during leaf senescence in hybrid rice shan you 63 and three lines.
研究了杂交稻及其三系叶片衰老过程中叶绿体数量和结构的变化。
The structure and Numbers of chloroplasts were investigated during leaf senescence in hybrid rice shan you 63 and three lines.
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