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《Journal of Wuhan Botanical Research》 2006-01
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The Combined Effects of Enhanced UV-B Radiation and Doubled CO_2 Concentration on the Growth,Fruit Quality and Yield of Tomato in Winter Plastic Greenhouse

LI Fang-Min~1,WANG Jun~2,CHEN YU-Ping~1,ZOU Zhi-Rong~2,WANG Xun-Ling~1,YUE Ming~(1*)(1.School of Life Sciences Northwest University,Xi'an,Shaanxi 710069,China;2.College of Horticulture,Northwest Sci-Tech of Agriculture and Forestry University,Yangling,Shaanxi 712100,China)  
Five different doses of UV-B radiation was supplied to tomato(Lycopersicon esculeutum Mill)with the doubled CO_2 concentration(700 μmol ·mol~(-1))in winter plastic greenhouse.The influences on the seedling growth,fruit quality and yield of tomato were investigated.The results showed that the seedling growth,and the contents of UV absorbing compounds,soluble sugar,origanic acid,Vc,lycopene of tomato fruits,and yield of tomato increased under doubled CO_2 concentration.Under the doubled CO_2 concentration the effects of lose doses of UV-B radiation could promote the effects of doubled CO_2 concentration furtherly.But there is not significant difference on yield of tomato.The dose of UV-B radiation(about) 1.163 kJ·m~(-2) is the best dose.When the dose of UV-B radiation is more than it,the effects of UV-B will be reduced.
【Fund】: 国家自然科学基金资助项目(30370269);; 陕西省科技厅产业化培育项目(01ZC07)
【CateGory Index】: S626.4
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