Effects on leaf stomatal conductance and single leaf water use efficiency of maize by aquasorb rootzone-divided use

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Publication date
1 January 2004
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Abstract

盆栽条件下,研究了陕单9号玉米 ZeamaysL. 在根区不施保水剂 对照 、分根区施保水剂和根区全施保水剂3种处理下,叶片气孔导度、CO2吸收和H2O蒸腾的变化.结果表明,在75%土壤饱和持水量下,各指标在3种处理之间没有明显差别;在50%土壤饱和持水量下,分根区施保水剂显著降低了叶片气孔导度,叶片CO2吸收量和H2O蒸腾量也同时降低,但H2O蒸腾量下降幅度更大;在两种水分条件下,分根区施保水剂均能提高玉米单叶水分利用效率 wateruseefficiency,WUE

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    Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources

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