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《Journal of Anhui Agricultural Sciences》 2008-34
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Study on Dynamic Model of Dry Matter Distribution of Winter Wheat under Drought Stress Conditions

LI Chuan-hua et al (Center of Agricultural Quality Detection,Taian Agricultural Bureau,Taian,Shandong 271000)  
[Objective] The aim was to study the dynamic model of dry matter distribution of winter wheat under different drought stress conditions.[Method] With winter wheat variety Lumai 21 as material,2 kinds of cultural methods such as pot and rain-proof shelter cultivation were taken to study their dynamic change of dry matter distribution under different drought stress conditions.[Result] Drought had effects on the dry matter distribution of different organs in Lumai 21 to different extent.The dry matter accumulation of treatments at maturity stage of wheat changed as spike stem leaf.The relationship between the dry weight of spike,leaf and stem of Lumai 21 and dry weight per plant was that Y=1.87+2.22X,Y=1.939+5.250X,Y=-2.202+3.267X resp.The relationship of wheat yield and water consumption fitted the formula of Y=43.76+702.35X.The relationship of wheat yield and water use efficiency was that Y=8.92+8.73X.[Conclusion] In the region of north china,the irrigation effect of winter wheat in jointing stage was better than that in the booting stage.
【Fund】: 国家“十一五”科技支撑计划项目(2006BAD04B01);; 泰安市科技局项目(2006-2008.12)
【CateGory Index】: S512.11
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