| 覆草对旱种直播稻产量与品质的影响 |
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| 引用本文： | 张自常,李鸿伟,王学明,袁莉民,王志琴,刘立军,杨建昌.覆草对旱种直播稻产量与品质的影响[J].作物学报,2011,37(10):1809-1818. |
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| 作者姓名： | 张自常 李鸿伟 王学明 袁莉民 王志琴 刘立军 杨建昌 |
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| 作者单位： | 扬州大学江苏省作物遗传生理重点实验室 / 农业部长江中下游作物生理生态与栽培重点开放实验室, 江苏扬州 225009 |
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| 基金项目： | 国家自然科学基金重大国际合作交流项目(31061140457),国家自然科学基金项目(31071360); 江苏省基础研究计划项目(BK2009005); 2011年中央级科研院所基本科研业务费专项基金项目(农业)(201103003); 教育部博士学科点基金项目(200811170002)资助 |
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| 摘 要： | 直播水稻品种扬稻6号(籼)和扬粳4038(粳), 并设覆草(麦秸秆)旱种、无覆盖旱种和无覆盖水种(出苗后保持浅水层)处理, 研究了对水稻产量与品质的影响及其生理原因。结果表明, 与无覆盖水种(对照)相比, 两旱种处理的产量都有不同程度的降低, 覆草旱种减产1.9%~6.6%, 差异不显著, 无覆盖旱种减产18.0%~27.6%, 差异显著。覆草旱种显著提高了稻米的整精米率、胶稠度、清蛋白和谷蛋白含量, 显著降低了垩白米率、垩白度和醇溶蛋白含量, 还改善了稻米的食味性。无覆盖旱种直播结果则相反。覆草旱种可以获得较高的产量并可改善稻米品质的重要生理原因是增加了结实期剑叶膜质过氧化酶活性、光合速率、根系活力以及根系中吲哚-3-乙酸和玉米素+玉米素核苷的含量。无覆盖旱种降低了上述指标值, 致产量显著下降、米质变劣。
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| 关 键 词： | 水稻 直播 覆草旱种 产量 品质 激素 |
| 收稿时间： | 2011-02-11 |
Effect of Non-flooded Straw-mulching Cultivation on Grain Yield and Quality of Direct-seeding Rice |
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| ZHANG Zi-Chang,LI Hong-Wei,WANG Xue-Ming,YUAN Li-Min,WANG Zhi-Qin,LIU Li-Jun, YANG Jian-ChangKey Laboratory of Crop Genetics , Physiology of Jiangsu Province / Key Laboratory of Crop Physiology,Ecology , Cultivation in Middle , Lower Reaches of Yangtze River of Ministry of Agriculture,Yangzhou University,Yangzhou ,China.Effect of Non-flooded Straw-mulching Cultivation on Grain Yield and Quality of Direct-seeding Rice[J].Acta Agronomica Sinica,2011,37(10):1809-1818. |
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| Authors: | ZHANG Zi-Chang LI Hong-Wei WANG Xue-Ming YUAN Li-Min WANG Zhi-Qin LIU Li-Jun YANG Jian-ChangKey Laboratory of Crop Genetics Physiology of Jiangsu Province / Key Laboratory of Crop Physiology Ecology Cultivation in Middle Lower Reaches of Yangtze River of Ministry of Agriculture Yangzhou University Yangzhou China |
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| Institution: | Key Laboratory of Crop Genetics and Physiology of Jiangsu Province / Key Laboratory of Crop Physiology, Ecology and Cultivation in Middle and Lower Reaches of Yangtze River of Ministry of Agriculture, Yangzhou University, Yangzhou 225009, China |
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| Abstract: | There are two problems in rice production in China: the one is the water shortage and another is labor shortage because of the climate change and economic development. Therefore, water-saving and labor-saving techniques should be developed. The direct-seeding is considered as a labor-saving while the non-flooded mulching cultivation as a water-saving practice. The aim of this study was to investigate if non-flooded straw mulching cultivation could maintain both grain yield and quality of direct-seeding rice... |
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| Keywords: | Rice Direct seeding Non-flooded wheat straw mulching Grain yield Grain quality Hormones |
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