不同玉米品种耗水特性及其水分利用效率的差异研究  

Characteristic of Consuming Water of Different Maize Varieties and Diversity of Water Use Efficiency

作　　者：杨涛[1] 杨明超 梁宗锁[1] 薛吉全[3] 康绍忠[3] 

机构地区：[1]中科院水土保持研究所,陕西杨凌712100 [2]新疆喀什农三师农业局,喀什844000 [3]西北农林科技大学,陕西杨凌712100

出　　处：《种子》2005年第2期3-6,共4页Seed

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：本文通过盆栽控水试验结果表明:分4个生育时期研究,在中度水分胁迫下,12个品种以生物学产量计算的水分利 用效率显著或极显著高于正常适宜供水条件。12个品种在耗水量、干物质积累和水分利用效率上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。Based on pot experiment,the mainly results showed : Under middle water stress,water use efficiency of 12 varieties based on biomass was obviously higher than full supplied water condition at 4 stages, Consuming water、 biomass accumulation and water use efficiency of 12 varieties existed obvious diversity, zhendan 958、yedan 13 and shandan 911 belonged to high water use effciency、high yield and consuming water varieties,zhongdan 2 belonged to high water use efficiency、mid-yield and mid-consuming water variety, nongda 60、shandan 902 belonged to high water use efficiency 、mid-yield and saving water varieties; hudan 1、hudan 4、yedan 19 and shendan 10 belonged to mid water use efficiency、mid-yield and saving water varieties;shandan 9 and danyu 13 belonged to low water use efficiency、low-biomass and saving water varieties。

关 键 词：玉米品种 水分利用效率 高水分 耗水特性 生物学产量 节水型 生育时期 正常 中度 种属 

分 类 号：S513[农业科学—作物学] S512