摘要： 为了研究小麦对不同矿化度咸水灌溉的综合反应,于2007-2008和2008-2009年度在河北省农林科学院旱作农业研究所试验站,分别采用1(CK),2,4,6,8 g/L 5个矿化度咸水对石家庄8号、衡观35、山融3号、衡观136和沧6004 5个小麦品种进行灌溉研究。结果表明,小麦的株高、生物量、叶面积和群体随灌溉水矿化度增高而降低;比叶重(叶片厚度)、叶绿素含量以及千粒重随灌溉水矿化度增高而呈现升高趋势。这一研究结果表明,可以利用适度的咸水一定程度上塑造合适的株型。灌溉水的盐分对小麦群体的影响是造成产量降低的重要原因,采用具有一定株高和分蘖成穗率强的小麦品种,适当加大播量是提高咸水灌溉小麦产量的重要手段。

关键词: 小麦品种, 咸水灌溉, 矿化度, 生长, 产量

Abstract: "In order to study the integrated responses of wheat to saline water irrigation,a trial was conducted with five wheat varieties irrigated with saline water of 1,2,4,6,8 g/L five mineral contents,during 2007-2008 and 2008-2009,in the research station of Dry-land Farming Institute.The results showed that the plant height,biomass,leaf area and per ha spikes reduced with the increase of mineral content;while the leaf weight of unit area,chlorophyll content and 1 000-kernel weight increased.This result indicated that modifying the plant gesture by certain saline water was probable.The seriously decreased spike numbers was an important reason for saline water causing yield loss.Using varieties with certain plant height and high spike numbers and increasing the seeding rate when sowing were effective measures for improving the wheat yield irrigated with saline water. "

Key words: Wheat varieties, Saline water irrigation, Mineral content, Growth, Yield

中图分类号: 

• S512.1