Combined effects of enhanced ultraviolet-B radiation and doubled CO2 concentration on growth, fruit quality and yield of tomato in winter plastic greenhouse |
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| Authors: | Fangmin Li Jun Wang Yuping Chen Zhirong Zou Xunling Wang Ming Yue |
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| Institution: | 1. School of Life Sciences, Northwest University, Xi’an, 710069, China
2. College of Horticulture, Northwest Sci-Tech of Agriculture and Forestry University, Yangling, 712100, China
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| Abstract: | Five different doses of ultraviolet-B (UV-B)radiation were supplied to tomato (Lycopersicon esculeutum.in the winter plastic greenhouse.The influences on the seedling growth,fruit quality and yield of tomato were investigated.Results showed that the seedling growth,and the contents of UV absorbing compounds,soluble sugar,organic acid,vitamin C and lycopene of tomato fruits,and yield of tomato increased under doubled CO2 concentration.Under the doubled CO2 concentration the effects of lost doses of UV-B radiation could further promote the effects of doubled CO:concentration.However,there is no significant increase in yield of tomato.The best dose of UV-B radiation is about 1.163 kJ.m-2.When the dose of UV-B radiation is more than it,the effects of UV-B will be reduced. |
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| Keywords: | UV-B CO2 plastic greenhouse tomato fruit quality yield of tomato |
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