| 土壤水分对小麦籽粒淀粉合成和积累特性的影响 |
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| 引用本文： | 许振柱,于振文,张永丽.土壤水分对小麦籽粒淀粉合成和积累特性的影响[J].作物学报,2003,29(4):595-600. |
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| 作者姓名： | 许振柱 于振文 张永丽 |
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| 作者单位： | 山东农业大学农业部小麦栽培生理与遗传改良重点开放实验室,山东泰安,271018;中国科学院植物研究所植被数量生态学重点研究实验室,北京,100093 |
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| 基金项目： | 国家自然科学基金资助项目 ( 3 9970 42 5 )，中国科学院知识创新工程项目 (KSCX2 1 0 7)，国家重点基础研究发展规划项目 ( 973项目 ) (G19990 43 40 7) |
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| 摘 要： | 以防雨池栽的方式研究了限量灌溉对冬小麦籽粒淀粉合成和积累的影响.结果表明,冬小麦籽粒中可溶性淀粉合成酶(SSS)、淀粉粒结合态合成酶(GBSS)和Q酶 (一种分支酶)均是在灌浆中期(花后14 d)活性最高.中度、严重干旱显著地降低了它们的活性.适宜的灌水处理(处理C和处理D)使三种酶保持较高的活性,这是形成较高产量的生理基础.三
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| 关 键 词： | 冬小麦 籽粒 淀粉 关键酶 积累 品质 |
| 收稿时间： | 2002-01-28 |
| 修稿时间： | 2002年1月28日 |
The Effects of Soil Moisture on Grain Starch Synthesis and Accumulation of Winter Wheat |
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| XU Zhen Zhu , YU Zhen Wen , ZHANG Yong Li.The Effects of Soil Moisture on Grain Starch Synthesis and Accumulation of Winter Wheat[J].Acta Agronomica Sinica,2003,29(4):595-600. |
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| Authors: | XU Zhen Zhu YU Zhen Wen ZHANG Yong Li |
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| Institution: | XU Zhen Zhu 1,2 YU Zhen Wen 1,* ZHANG Yong Li 1 |
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| Abstract: | This study was carried out by culturing method in proof rainfall trough in middle area of Shandong province during 1999-2000. The activities of soluble starch synthase (SSS), granule bound starch synthase (GBSS), and Q enzyme (a kind of branch enzyme) all reached the highest during filling middle stage 14days after flowering, and decreased significantly under moderate and serious drought condition. The activities of three enzyme in Lumai 21 were higher than those in Jinan 17. Under terrible soil moisture deficit (treatment A), the accumulation of the total starch, amylopectin and amylose in the grains declined significantly. Irrigation at milk stage was not useful for the starch of accumulation. Generally, the content of starch and amylopectin in Lumai 21 was higher than that in Jinan 17, but the content of amylose was contrary higher. The deficit of soil moisture made amylopectin/amylose ratio rising, especially to Lumai 21, and the high ratio could improve noodle quality |
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| Keywords: | Winter wheat Grains Starch Key enzymes Accumulation Quality |
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