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《Journal of Henan Agricultural Sciences》 2008-05
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Effects of Altitute on Dynamic Changes of Growth and Development and Dry Matter Accumulation of Burley Tobacco

SHI Hong-zhi1,XIE Zi-fa2,YIN Hong-bo1,CHEN Zhi-hua2,LIU Guo-shun1,WANG Tao3,LI Hao3 (1.National Tobacco Cultivation & Physiology & Biochemistry Research Center of Henan Agricultural University,Zhengzhou 450002,China;2.Dazhou Tobacco Research Institute,Dazhou 635000,China;3.Dazhou Tobacco Company,Dazhou 635000,China)  
The effect of altitute(700m,1000m,1300m) on the dynamic changes of growth and development and dry of burley tobacco was studied in Sichuan area.The results showed that the plant height,number of leaves,leaf area and stalk perimeter were all in line with the "Logistic" growth model,while altitute had significant effect on the changing parameters.Under lower altitute of 700m,leaf and stalk entered fast-growth stage early,with high growth rate;the major growth period was from 40d to 60d after transplanting,and the plant was topped 68d after transplanting,then the upper and middle leaf area and stalk perimeters continued to increase.With the increase of altitute,especially at the altitute of 1300m,the growth and development became slow,the middle and upper leaf group appeared late and grew slowly,the topping date was15 days later than that at the altitute of 700m,and the harvest date was 30 days late,which was not conductive to the normal mature and air-curing.
【Fund】: 四川省烟草公司科技项目
【CateGory Index】: S572
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