%0 Journal Article
%T Effects of different irrigation modes on biological characteristics and water use efficiency of paddy rice<br>不同灌溉方式对水稻生物学特性与水分利用效率的影响
%A CHENG Jianping
%A CAO Cougui
%A CAI Mingli
%A WANG Jinping
%A YUAN Baozhong
%A WANG Jianzhang
%A ZHENG Chuanju
%A <br>程建平
%A 曹凑贵
%A 蔡明历
%A 汪金平
%A 原保忠
%A 王建漳
%A 郑传举
%J 应用生态学报
%D 2006
%I 
%X With hybrid rice cuhivar Liangyou Peijiu as test material, this paper studied its biological characteristics and water use efficiency under effects of four irrigation modes. Compared with continuous flooding irrigation, intermittent irrigation increased the leaf area index, photosynthetic rate and water use efficiency, and decreased the leaf transpiration rate. Semi-dry cultivation increased the leaf water use efficiency, while dry cultivation decreased the leaf area index, photosynthetic rate, and water use efficiency, and induced the leaf senescence in later growth period. Under intermittent irrigation, semi-dry cultivation and dry cultivation, the water consumption of paddy rice was 8.75% , 17.96% and 29.69% lower, and its grain yield was 24. 02% higher but 5.07% and 38. 93% lower than that under continuous flooding irrigation, respectively. The water use efficiency was the highest under intermittent irrigation, relatively high under semi-dry cultivation, but relatively low under continuous flooding irrigation and dry cultivation. Compared with other irrigation modes, intermittent irrigation increased the milled rice rate, head rice rate and grain length, while decreased the chalky rice and chalkiness. With the reduction of water consumption, the amylose content of rice grain decreased, but the gel consistency and protein content increased. Intermittent irrigation could be a favorable irrigation mode for the paddy rice planting in Southern China.
%K Biological characteristics
%K Irrigation mode
%K Rice
%K Water use efficiency<br>生物学特性
%K 灌溉方式
%K 水稻
%K 水分利用效率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=39A01C87641533FF&yid=37904DC365DD7266&vid=BCA2697F357F2001&iid=F3090AE9B60B7ED1&sid=A477487C019ACAC8&eid=240F2240A2877152&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=11&reference_num=22