Journal of Photoscience
- Volume 9 Issue 2
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- Pages.166-169
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- 2002
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- 1225-8555(pISSN)
Effects of Increased UV-B upon the Canopy's Structure of Wheat in China
- Zheng, Youfei (Dept. of Environmental Sciences, Nanjing Institute of Meteorology) ;
- He, Yuhong (Dept. of Environmental Sciences, Nanjing Institute of Meteorology) ;
- Yang, Yuanyan (Dept. of Environmental Sciences, Nanjing Institute of Meteorology) ;
- Li, Zhanqing (University of Maryland)
- Published : 2002.08.01
Abstract
This paper is a part of the research into effects of increased UV-B (Ultraviolet-B, 280-320nm) upon the ecosystem of field wheat. Based on a 3-year project with intensified UV-B influencing the crop, observation and calculation were made of such factors and parameters as the morphology of a single wheat plant including its leaf area, leaf base angle and proportion of spacing between joints. The results show that the enhanced UV-B signifantly decreased wheat's SSLA, and the increased percentage of the lower LAI is associated with the change in leaf base angle and proportion of spacing between joints.