...阅读器 摘要： 以成都生物研究所培育的26份同源四倍体水稻(2 n=4 x=48)为材料,测定了其农艺性状和直链淀粉含量(amylose content,AC),并进行相关性分析.
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随糖氮比的提高，糙米厚、千粒重和直链淀粉含量将显著降低。
The increase of ratio of sugar to nitrogen may significantly lead to the decline of brown rice thickness, 1000-grain weight and amylose content.
在适宜密度条件下蛋白质含量较高，垩白率和直链淀粉含量较低。
Under suitable density condition, protein content increased and amylose content, head rice rate and chalk grain decreased.
垩白、整精米率和直链淀粉含量是籼稻品质改良的重点，垩白和整精米率是粳稻品质改良的重点。
Reducing chalky grain and increasing head rice rate were important in japonica rice quality improvement. (3) The quality of indica hybrid rice was improved significantly.
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