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首页> 外文会议>Industrialization of Hybrid Rice >Dynamic Characteristic of Dry Matter Transportation and Grain Filling and Their Correlations in Two - line Hybrid Rice
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Dynamic Characteristic of Dry Matter Transportation and Grain Filling and Their Correlations in Two - line Hybrid Rice

机译：两系杂交稻干物质转运和籽粒灌浆的动态特征及其相关性。

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Dynamic characteristics of dry matter transportation of leaf and stem-sheath, grain filling and their correlations from the level of one stem- plant during the panicle heading to grain filling in 25 two - line hybrid rice were studied. The results showed: The variability of the dry matter transportation of leaf and stem - sheath, dynamic of 1 000 - grain weight and the total grain filling of one stem - plant were different among each hybrids. It was in favor of IWML (Increased weight of the matter in leaf) for the increase of grain plumpness during the initial stage after heading. There was a clear significance of the maintaining of leaf resource for the increase of the total grain yield per panicle of the two -line hybrid during the total grain filling period. It was in favor of the more dry matter accumulation of stem - sheath during the initial stage and the higher transportation in later stage after heading , the higher of grain plumpness and the total grain yield per panicle. The papers also discussed the problem for the selection of high yield two - line hybrid rice from the dry matter accumulation and transportation.
机译：研究了25个两系杂交水稻的穗，茎鞘干物质运输动态特征，籽粒灌浆过程中籽粒灌浆的动态及其相互关系。结果表明：各杂种叶片和茎鞘干物质运输的变异性，1000粒重的动态变化和一株茎植物的总籽粒充实量均不同。抽穗后初期谷物丰满度的增加有利于IWML（叶片中物质重量的增加）。在总的灌浆期，保持两叶杂交种每穗总总产量的叶片资源的维持具有明显的意义。抽穗后茎鞘的干物质积累较多，抽穗后后期的转运较高，有利于籽粒饱满度和每穗总籽粒产量的增加。论文还讨论了从干物质积累和运输中选择高产两系杂交稻的问题。

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