| 稻米品质形成机理研究──品质不同的粳稻品种籽粒灌浆过程中胚乳内含物质积累动态的比较研究 |
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| 引用本文： | 金正勋,秋太权,孙艳丽,崔成焕.稻米品质形成机理研究──品质不同的粳稻品种籽粒灌浆过程中胚乳内含物质积累动态的比较研究[J].东北农业大学学报,2000(2). |
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| 作者姓名： | 金正勋 秋太权 孙艳丽 崔成焕 |
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| 作者单位： | 东北农业大学农学院农学系，东北农业大学农学院农学系，东北农业大学农学院农学系，东北农业大学农学院农学系 黑龙江 哈尔滨150030，黑龙江 哈尔滨150030，黑龙江 哈尔滨150030，黑龙江 哈尔滨150030 |
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| 基金项目： | 东北农业大学青年基金资助项目（1995） |
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| 摘 要： | 利用稻米品质不同的３个粳稻品种，对灌浆过程中籽粒干物质、直链淀粉及蛋白质的积累规律进行了比较研究。结果表明，在灌浆过程中籽粒干物质、直链淀粉及蛋白质的积累趋势，其品质不同的品种基本一致，积累速度表现为灌浆前期快，而后期缓慢，但在灌浆过程中的不同时期积累速度和数量上品种间表现有差异；开花后３０ｄ内是籽粒干物质、直链淀粉及蛋白质积累的关键时期，３０ｄ以后积累基本趋于稳定；灌浆前期的日平均干物质积累速度与稻米垩白率呈显著的正相关，与胶稠度呈显著的负相关，而后期的日平均干物质积累速度与垩白率、胶稠度的相关均不显著。
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| 关 键 词： | 粳稻 干物质 直链淀粉 蛋白质 积累动态 |
Study on the nature of formation of rice quality charactics comparative study on the accumulation dynamic of compounds in the endosperm of different quality Japonica rice in the filling course |
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| JIN Zheng-xun,QIU Tai-quan,SUN Yan-li,CUI Cheng-huan.Study on the nature of formation of rice quality charactics comparative study on the accumulation dynamic of compounds in the endosperm of different quality Japonica rice in the filling course[J].Journal of Northeast Agricultural University,2000(2). |
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| Authors: | JIN Zheng-xun QIU Tai-quan SUN Yan-li CUI Cheng-huan |
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| Abstract: | A comparation among three japonica rice varieties with different grain quality was stud- ied in this trial on the accumulative regulation in the contence of dry matter, amylose and protein in kernels in the filling course. The results showed that the processes of the accumu- lation of those materials were generally consistent, and the speed of the accumulation of the compounds was fast in the prophase and slow in the anaphase. But the difference between the varieties in the accumulative speed and the contence of the compounds in the respective phases in the filling course was observed. The 30 days after flowering was key period in the accumulation of dry matter, amylose and protein and the concentration was stable beyond 30 days. The average speed of dry matter accumulation in the prophase was significantly passi- tive correlated with the ratio of chalkiness in grain and minus with gel consistency, but in anaphase of filling course the relationship was not significant. |
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| Keywords: | japonica rice dry matter amylose protein dynamic of accunulation |
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