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《Modern Agricultural Sciences and Technology》 2011-08
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Influence of Drought Resistance Physiology Index on Cotton under Different Water Treatments

ZHANG Ming 1 WANG Chun-xia 2(1 Institute of Water Conservancy and Hydraulic Power Research of Xinjiang Uygur Autonomous Region,Urumqi Xinjiang 830049; 2 Institute of Water Resources and Hydro-electric Engineering,Xi'an University of Technology)  
The effects of different water treatments on variantions of physiological indices of cotton were carried out in pot-test.Results showed that leaf water saturated deficiency trended to increase,leaf water conservation and leaf potential trended to decrease along with the decrease of soil water content,it meant roots of cotton supplied lower water and nourishment in the condition of water deficiency and the cotton physiology descended.The relation of leaf potential and water moisture showed quadric multinomial,and correlation coefficients exceeded 0.8,total biomass and the rate of root and overground were determined at the same time.To achieve water-saving purpose,soil water content was 60% field content as the lowest value of water saving irrigation in the whole bearing time.
【Fund】: 水利部公益性行业科研专项“塔河流域干旱预警及水资源应急调配关键技术”(201001066);; 水利部公益性行业科研专项"新疆地下水资源利用及保护的技术开发与应用"(200801050);; 新疆维吾尔自治区科技计划项目“新疆农业抗旱减灾关键技术研究”(200931105)
【CateGory Index】: S562
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