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.
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。
During seed production in hybrid rice, preharvest sprouting is one of the main restricting factors for yield and quality.
在杂交水稻制种生产上，穗上芽的发生成为制约制种产量和品质的主要因素之一。
The regularity of unfavourable weather and its effect on hybrid rice seed production are introduced, and the corresponding technical countermeasures are pointed out.
介绍了信阳地区灾害性天气发生规律及其对杂交稻制种的影响，并提出了应对措施。
Making use of the culture techniques to regulate the heading date and the pollen density are very important to increase the seed yield of the seed production in the hybrid rice.
利用栽培技术来调节花期和花粉密度，对提高制种产量有重要作用。
This paper discussed the problem of earing stage control in hybrid rice seed production and the relationship between cultivation practice and earing stage.
本文讨论了杂交稻制种花期调节方法，栽培措施与水稻出穗期的关系。
The production method creates a hybrid seed production technique in the aspect of hybrid rice cultivation and enlarges the range of excellent hybrid rice combinations.
本发明的生产方法在培育杂交水稻方面，创建了一种可以随机配组的制种技术，扩大优良杂交稻组合的范围。
The results provided the references for enhancing quality of the hybrid rice seed production through strengthening the field management.
研究结果对根据气象条件加强田间管理、提高杂交稻制种质量有益。
The method has the advantages of realizing the full-mechanized operation of producing and processing hybrid rice seeds and greatly improving the efficiency of hybrid rice seed production.
本发明的方法能够实现杂交水稻制种、加工的全机械化操作，大大提高杂交水稻制种的效率。
Objective】Stigma exsertion is one of the important traits which contribute to the efficient improrement of commercial seed production in hybrid rice.
目的柱头外露是影响杂交水稻制种的一个重要性状。
Objective】Stigma exsertion is one of the important traits which contribute to the efficient improrement of commercial seed production in hybrid rice.
目的柱头外露是影响杂交水稻制种的一个重要性状。
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