| Effects of enhanced Ultraviolet radiation-B on plant form of spring wheat in arid and semiarid regions of middle-high elevation |
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| DOI：10.7606/j.issn.1000-7601.2007.02.18 |
| Key Words: Ultraviolet radiation-B middle-high elevation arid and semiarid regions spring wheat plant form |
| Author Name | Affiliation | | ZHANG Lei | Ningxia Key Laboratory for Meteorological Disaster Prevention and Reduction,Yinchuan,Ningxia 750002,China | | WANG Lian-xi | Ningxia Key Laboratory for Meteorological Disaster Prevention and Reduction,Yinchuan,Ningxia 750002,China | | ZHANG Xiao-yu | Ningxia Key Laboratory for Meteorological Disaster Prevention and Reduction,Yinchuan,Ningxia 750002,China | | YUAN Hai-yan | Ningxia Key Laboratory for Meteorological Disaster Prevention and Reduction,Yinchuan,Ningxia 750002,China | | KANG Yan-li | Ningxia Key Laboratory for Meteorological Disaster Prevention and Reduction,Yinchuan,Ningxia 750002,China |
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| Abstract: |
| The article studied influence of enhanced ultraviolet radiation-B on plant form of spring wheat in arid and semiarid regions of middle-high elevation.Using lift lamp of UV-B, we observed plant height, green leaf number and leaf form of spring wheat"Ningchun 4"at different UV-B exposure dose in field condition.Field trail for two years showed that enhanced UV-B reduced plant height, green-leaf number, leaf angle, and single leaf area of spring wheat, the reason of small single leaf area was in decrease of both leaf length and leaf width.In the most conditions, enhanced ultraviolet radiation-B exposure dose is harmful for upgrowth of spring wheat.Enhanced UV-B shrink plant form and decreased green-leaf number of spring wheat in arid and semiarid regions of middle-high elevation.It is very disadvantageous for dry matter production and yield of spring wheat. |
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