干旱胁迫下不同玉米品种的耗水特性及其水分利用效率的差异  

Water consumption characteristics and water use efficiency of different maize varieties under drought stress

作　　者：杨涛[1] 梁宗锁[1] 薛吉全[2] 康绍忠[2] 

机构地区：[1]中国科学院水土保持研究所,陕西杨凌712100 [2]西北农林科技大学,陕西杨凌712100

出　　处：《干旱地区农业研究》2005年第5期103-107,共5页Agricultural Research in the Arid Areas

基　　金：国家973项目(G1999011708);国家青年基金(59909007)"作物水分高效利用的生理学机制。

摘　　要：通过盆栽控水对12个玉米杂交品种的耗水量、生物学产量及其水分利用效率(WUE)进行测试,结果表明:12个品种的耗水量、干物质积累和WUE存在显著或极显著差异,其中郑单958、掖单13、陕单911这3个品种属于高水分利用效率、高产、耗水型品种;中单2号属于高水分利用效率、中产、中等耗水型品种;农大60、陕单902属于高水分利用效率、中产、节水型品种;户单1号、掖单19、沈单10号这3个品种属于中等水分利用效率,生物产量表现一般、节水型品种;户单4号、陕单9号和丹玉13这3个品种属于低水分利用效率、生物学产量较低、节水型品种。The pot experiment was conducted to investigate the water consumption, biomass yield and water use efficiency （WUE） of 12 maize varieties under water-controlling condition. The results showed that there existed remarkable or extremely remarkable differences in water consumption, dry matter accumulation and WUE among different varieties. In all the tested varieties, Zhengdan 958, Yedan 13 and Shaandan 911 belonged to the group with high water use efficiency, high yield and high water consumption; Zhongdan 2 belonged to the group with high water use efficiency, mid yield and mid water consumption; Nongda 60 and Shaandan 902 belonged to the group with high water use efficiency, mid yield and strong water saving; Hudan 1, Yedan 19 and Shendan 10 belonged to the group with mid water use efficiency, mid yield and strong water saving; and Hudan 4, Shaandan 9 and Danyu 13 belonged to the group with low water use efficiency, low biomass yield and strong water saving.

关 键 词：玉米 品种 耗水特性 水分利用效率 土壤干旱 

分 类 号：S513[农业科学—作物学]