| Effects of root-divided alternative irrigation on physiological characteristics and yield of flue-cured tobacco |
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| DOI：10.7606/j.issn.1000-7601.2006.05.22 |
| Key Words: flue-cured tobacco root-divided alternative irrigation physiological characteristics yield |
| Author Name | Affiliation | | WANG Yao-fu | College of Agronomy Henan Agricultural University,Zhengzhou 450002,China；Postdoctoral Workstation of Changsha Cigarette Factory,Changsha 410007,China | | CAI Han-yu | College of Agronomy Henan Agricultural University,Zhengzhou 450002,China | | ZHANG Xiao-hai | Yunnan Tobacco Science Institute,Yuxi,Yunnan 653100,China | | GAO Hua-jun | College of Agronomy Henan Agricultural University,Zhengzhou 450002,China | | SUN Xiang-hui | College of Agronomy Henan Agricultural University,Zhengzhou 450002,China |
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| Abstract: |
| The effects of root-divided alternative irrigation on growth,physiological characteristics and yield of flue-cured tobacco were studied under artificial water control by FDR.The results indicated that root-divided alternative irrigation could increase root activities,photosynthesis rate and water use efficiency of tobacco leaf,but decrease transpiration rate;it could reduce the height and leaf area index of tobacco, but increase stalk diameter of tobacco and contents of soluble sugar and protein in tobacco leaves;it saved irrigation water by 41.07%,while increase yield,output value and water use efficiency of tobacco by 1.96%,12.16% and 73.81%,respectively.It was suggested that root-divided alternative irrigation be an effective irrigation method for flue-cured tobacco. |
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