为杂交稻制种高产提供了理论依据。
还对杂交稻抗虫性的改良进行了讨论。
Improvement of hybrids with insect resistance was also discussed.
杂交稻灌浆的临界含水率为25%左右。
The filling of grain ended when the grain water content was 25%.
研究了不同收获时期对杂交稻稻米品质的影响。
The effects of different harvest dates on rice quality of hybrid rice were studied.
因此，杂交稻抗虫性的提高有赖于不育系的改良。
Thus, CMS lines are needed to improve insect pest resistance in hybrid rice.
大力推广杂交稻和提高水稻栽培技术是最主要的对策。
To spread hybrid rice technology and improve rice cultivation technology are the main countermeasures in this situation.
施氮量对杂交稻的产量形成和氮肥利用的影响十分明显。
The applied amount of nitrogen had a significant effect on grain yield.
1990年以后，以前表现抗虫的杂交稻变得高感褐飞虱。
After 1990, previously BPH-resistant hybrid rice became highly susceptible to BPH.
对23个早籼杂交稻新组合的14个籽粒性状进行因子分析。
Factor analysis was performed for 14 grain characters of 23 early indica hybrids rice.
三十烷醇对降低杂交稻空壳粒也有效果，对千粒重无明显影响。
Triacontanol causes promotional effects on the decrease in number of empty grains in hybrid rice.
对东北杂交稻与常规稻的产量形成过程和产量结构进行了分析。
The process of forming yield and their components of hybrid and conventional rice in Northern China were analyzed.
超级计算、智能机器人、超级杂交稻等一批关键技术实现重大突破。
Major breakthroughs were made in a number of key technologies, such as the building of supercomputers and smart robots and the cultivation of super-hybrid rice.
垩白粒率和垩白度是中籼杂交稻组合稻米品质提升的主要障碍因子。
Improving the quality of medium indica hybrid rice combinations was restricted by chalky rice rate and chalkiness degree.
综述了近年在温州市大面积应用的重穗型杂交稻籽粒灌浆的主要特点。
The main characteristics of grain filling of heavy panicle hybrid rice which has been applied in Wenzhou is summarized in this paper.
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。
This paper discussed the problem of earing stage control in hybrid rice seed production and the relationship between cultivation practice and earing stage.
不同的宗谱在杂交稻与常规稻上的分布存在差异，有着自己的优势寄主。
The distribution of each genetic lineage is different in hybridized rice and conventional rice and there are special host for each genetic lineage.
研究得到的两系法杂交稻制种技术的气象学方法可供其他熟制地区应用。
The agrometeorological technique for making hybrid rice seeds is applicable to zones of other rice cropping systems.
在养分的吸收和利用效率方面，杂交稻较常规稻表现出明显的生理优势。
Hybrid rices behaved of physiology advantage in nutrient uptake and use efficiency than that of inbred rice.
观察比较了超级杂交稻协优9308和高产杂交稻协优63的生理特性。
Physiological traits of super high yielding hybrid rice Xieyou 9308 and high yielding hybrid rice Xieyou 63 were compared.
比较了在不同插秧量和行距配置方式下杂交稻和常规稻的产量及其构成因素。
A comparison of yield and its components between hybrid rice and conventional rice varieties was made with different seedling quantity and row spacing at transplanting.
珍汕97A、 协青早A的一般配合力高，是配制迟熟杂交稻组合的主体不育系。
The general combining ability of Zheng shan97A and Xieqin Zao A is high . They are main sterile lines for breeding of late hybrid rice combinations.
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 regularity of unfavourable weather and its effect on hybrid rice seed production are introduced, and the corresponding technical countermeasures are pointed out.
选用不同类型两系杂交稻组合，研究了结实期茎鞘物质运转与籽粒灌浆结实的关系。
The translocation characters of reserves in stem and sheath and its relation to the grain filling were studied during ripening stage with different types of two-line hybrid rice.
以汕优63为对照，对3个C两优杂交稻组合的株型及干物质生产特性进行了研究。
The plant type and dry matter production characteristics were studied by using three C Liangyou hybrid rice combinations as materials and Shanyou 63 as a control.
强势粒对弱势粒物质摄取能力的优势，可能是杂交稻籽粒结实率低下的重要原因之一。
It was also observed that the "inter-grain apical dominance" in hybrid rice was stronger than its restorer, which might be one of the main reasons for low seed setting in hybrid rice combination.
选用不同类型的两系杂交稻品种，研究了结实期茎鞘物质运转与籽粒灌浆结实的关系。
The translocation characters of reserves in stem and sheath and its relation to the grain filling were studied during ripening stage with different types two-line hybrid rice.
在田间试验条件下，对超级杂交稻两优培九各生育阶段的养分吸收特性进行了研究和分析。
The uptake characteristics of nutrients at different growth stages of the super hybrid rice combination Liangyou Peijiu were studied on field experimental conditions.
模拟杂交稻生产和制种繁种，表明利用苗期叶色标记结合人工去杂，可有效提高田间纯度。
Simulation test of hybrid rice production demonstrated that the purity of hybrid rice would be improved greatly by using leaf colour as a marker to eliminate the false hybrid rice at early stage.
摘要 以汕优63为对照，对3个C两优杂交稻组合的株型及干物质生产特性进行了研究。
Abstract : The plant type and dry matter production characteristics were studied by using three C Liangyou hybrid rice combinations as materials and Shanyou 63 as a control.
摘要 以汕优63为对照，对3个C两优杂交稻组合的株型及干物质生产特性进行了研究。
Abstract : The plant type and dry matter production characteristics were studied by using three C Liangyou hybrid rice combinations as materials and Shanyou 63 as a control.
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