Aftereffects of water stress on corn growth at different stages

被引：0
|
作者：
Hao S. [1 ,2 ]
Guo X. [2 ]
Wang W. [2 ]
机构：
[1] Key Lab. of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China, Hohai University, Ministry of Education
[2] College of Water Conservancy and Hydropower, Hohai University
来源：
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | 2010年 / 26卷 / 07期
关键词：
Aftereffects; Corn; Photosynthesis; Production; Water; Water stress;
D O I：
10.3969/j.issn.1002-6819.2010.07.012
中图分类号：
学科分类号：
摘要：
In order to determine best irrigation mode, it is necessary to research on water stress aftereffects to corn yield and senescence in the early corn growth stage. By pot and plot experiments, the results show that moderate rewatering after water stress in initial corn growing season can preserve large photosynthetic area, keep photosynthetic system activity, delay chlorophyll degradation and enable functional leaves to maintain high photosynthetic efficiency, which is eventually beneficial to dry matter accumulation during final growing season of corn. It proves that the post-drought rewatering in the initial corn growing stage has obvious aftereffects. Particularly, the aftereffects are significant after water stress at late stage of seedlings and short-duration light drought at early jointing stage.
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页码：71 / 75
页数：4
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