Silk vigor is an important trait that effects hybrid seed production and hybrid production in maize.
花丝活力长短在一定程度上影响着玉米制种产量和杂交种产量，对玉米生产具有重要意义。
Now the process of the hybrid seed production mainly relies on manual, the working procedure is very burdensome.
但现行的三系杂交水稻制种技术，自播种至收获完全依靠人工操作，工序繁杂。
The physiological basis was discussed for the echnique of covering seedbed with plastic film in maize hybrid seed production.
系统地探讨了玉米地膜制种促熟增产的作物生理学机理。
The utility model relates to a pollination device used for hybrid seed production of plants, in particular to a dual-purpose waterproof pollinator for cotton.
本实用新型涉及一种植物杂交制种用授粉装置，具体是指一种棉花两用防 水授粉器。
Based on the analysis of the thermo sensitive characters of A3314, A3314 will be securely applied in hybrid seed production in most of wheat production areas of China.
根据A 3314的温敏特性，推测它在中国大部分小麦产区均可安全用于杂交小麦制种。
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。
However, Guang a has disadvantages as well as advantages in the utilization of heterosis because of its low lint percentage in parent propagation and hybrid seed production.
但因光a纯合态的低衣分，其亲本繁殖和杂交制种时皮棉产量降低，故光a不育系在杂种优势中的利用有优势又有劣势。
This paper reviewed the strategies of producing male sterility by gene engineering and new ways for the reproduction of male sterility lines use as a female parent in hybrid seed production.
本文综述了利用生物技术培育转基因雄性不育的多种策略，以及繁育用作大田配制杂交种的母本雄性不育系的新方法；
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。
Plant growth regulators have wide application and have markedly increased in yield and quality in seed production and multiplication of hybrid rice.
植物生长调节剂在杂交水稻制繁种中有广泛的应用，并能显著地提高杂交水稻的制种质量和产量。
Florescence prediction and adjustment measures are very important to hybrid maize seed production.
花期预测与调节对玉米的杂交制种非常重要。
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。
The seed production bases for producing two-line hybrid rape varieties of Qianyou series bred by Guizhou Institute of Oil Crops have been established since 1996.
贵州省油料研究所从1996年开始利用所选育的、具有自主知识产权的黔油系列两系杂交油菜品种建立优质杂交油菜制种基地。
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。
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。
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。
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。
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。
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