| 不同类型水稻品种的籽粒灌浆生理 |
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| 引用本文： | 王国忠,刘秀丽. 不同类型水稻品种的籽粒灌浆生理[J]. 扬州大学学报(农业与生命科学版), 1997, 0(4) |
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| 作者姓名： | 王国忠 刘秀丽 |
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| 作者单位： | 上海市农业局(王国忠)，江苏农学院(刘秀丽) |
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| 摘 要： | 以汕优６３号（源限型品种）和盐粳２号（库限型品种）为材料；研究了两类型品种籽粒灌浆生理差异。主要结果：以淀粉积累来表示籽粒灌浆过程，源限型品种强、弱势粒淀粉积累是异步的，而库限型品种则是同步的；两类型品种强、弱势粒的淀粉合成酶、淀粉磷酸化酶活性和呼吸速率的变化与淀粉积累速率曲线基本吻合；内源激素ＡＢＡ（Ａｂｓｃｉｓｉｃａｃｉｄ）参与籽粒灌浆过程调节，内源ＡＢＡ水平高，强、弱势粒灌浆速率慢，反之则快。
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| 关 键 词： | 水稻；品种；谷粒＋灌浆 |
THE GRAIN FILLING PHYSIOLOGY OF DIFFERENT TYPE RICE VARIETIES |
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| Wang Guozhong Liu Xiuli. THE GRAIN FILLING PHYSIOLOGY OF DIFFERENT TYPE RICE VARIETIES[J]. Journal of Yangzhou University(Agricultural and Life Science Edition), 1997, 0(4) |
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| Authors: | Wang Guozhong Liu Xiuli |
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| Abstract: | Investigation was carried out on the grain filling physiology in rice varieties of Shanyou 63 (source limiting type) and Yanjing 2 (sink limiting type) The results indicated that: (1) The filling characteristic of strong and weak grains in source limiting type variety was asynchromous in terms of starch accumulation, but that in sink limiting type variety was synchromous; (2) The activities of starch synthase and starch phosphorylase, changes of respiration rate were in accordance with the rate of starch accumulation in two type varities; (3) Grain filling was regulated by indogenous ABA, low rate of grain filling was with high level of indogenous ABA |
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| Keywords: | paddy cultivated varieties grains+grouting |
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