| Diagnosis of crop moisture condition from variable differential in stem diameter of tomato |
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| DOI：10.7606/j.issn.1000-7601.2005.03.09 |
| Key Words: moisture diagnosis variable differential in stem diameter tomato |
| Author Name | Affiliation | | MENG Zhao-jiang | College of Agronomy,Nanjing Agricultural University,Nanjing 210095,China；Farmland Irrigation Research Institute,CAAS,Xinxiang,Henan 453003,China | | DUAN Ai-wang | Farmland Irrigation Research Institute,CAAS,Xinxiang,Henan 453003,China | | BIAN Xin-min | College of Agronomy,Nanjing Agricultural University,Nanjing 210095,China | | LIU Zu-gui | Farmland Irrigation Research Institute,CAAS,Xinxiang,Henan 453003,China | | ZHANG Ji-yang | Farmland Irrigation Research Institute,CAAS,Xinxiang,Henan 453003,China |
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| Abstract: |
| In the greenhouse，by conducting pot and field experiments，the diagnosis method of crop moisture content from variable differential in stem diameter of tomato was studied．The results showed that the shrinking and swelling in stem diameter was closely related to the moisture content status within the plant，and variable differential in stem diameter （ ΔSd） could reflect plant moisture content condition sensitively，duly and accurately．This diagnosis method is characterized for its portability，stability，nondestruction to plant tissue，continuous monitoring and automatic logging as compared with other methods． |
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