通过人工增加对棉花UV-B辐射，研究在大田栽培和自然光照条件下人工模拟紫外辐射(UV-B,280-320 nm)增加对棉花生理、品质和产量的影响。实验设置4个处理，每个处理的辐射剂量分别为0 W·m-2 (R0)、0.5 W·m-2 (R1)、1 W·m-2 (R2)、1.5 W·m-2（R3）。测定棉花不同处理时期的叶绿素含量、可溶性蛋白质含量、脯氨酸（Pro）含量以及棉花的品质和产量。结果表明，随着UV-B辐射增强,棉花叶片叶绿素a、叶绿素b和总叶绿素含量以及可溶性蛋白质含量呈现先升后降的趋势，Pro相对含量增加，棉花产量和品质均明显降低。因此，UV-B辐射增强对棉花造成了一定程度的伤害。当辐射剂量超过棉花植株体内一定的阈值之后，伤害程度就越大，最终导致棉花产量下降,品质降低。
Abstract
The objectives of this research were to study the influences of enhanced ultraviolet radiation (UV-B, 280～320 nm) on physiological indicator, yield and quality of cotton fiber under cropland conditions. Through increasing UV-B radiation, with 0 W·m-2 (R0)、0.5 W·m-2 (R1)、1 W·m-2 (R2)、1.5 W·m-2（R3） for the four processing, the effects of enhancing Ultraviolet-B radiation on chlorophyll content, soluble protein and free proline content of cotton leaves were studied. With the increase in UV-B radiation, chlorophyll content and soluble protein content increased at first and decreased afier then.The relative content of proline was elevated, yield and quality of cotton decreased significantly. Enhancing UV-B radiation resulted in damage to cotton. When the radiation exceeds the threshold of cotton plant, led to the greater injury, resulted in the quality and cotton production reduce at last.
关键词
UV-B辐射 /
棉花 /
生理 /
产量 /
品质
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Keywords
UV-B radiation /
cotton /
physiological indicator /
yield /
quality
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参考文献
[1] SCOTTO J, Cotton G, Urbach F, et al. Biological effective ultraviolet radiation: surface measurements in the Unites States 1974 to 1985
[J］ . Science, 1988, 239: 762-764.
[2] EKELUND N G A. Effects of UV-B radiation on growth and motility of four phytoplankton species
[J］. Physiol Plant, 1990, 78:590.
[3] TERAMURA A H, Murali N S. Ntraspecific differences in growth and yield of soybean exposed to UV-B radiation under greenhouse and field conditions
[J］ . Environ and Experi Bot, 1986, 23(1):89.
[4] TERAMURA A H, Sulliran J H, Lydon J. Effects of UV-B radiation on soybean yield and seed quality: a 6-year field study
[J］. Physiol Plant, 1990, 80:5.
[5] 郑有飞,杨志敏,颜景义,等.作物对太阳紫外辐射增加的生物效应及其评估
[J］. 应用生态学报,1996,7(1):107-109. ZHENG You-fei, Yang Zhi-min, Yan Jing-yi, et al. Biological response of crops on enhanced solar ultraviolet radiation and its situation
[J］. Chinese Journal of Applied Ecology, 1996,7(1):107- 109.
[6] TERAMURA A H. Effect of ultraviolet-B radiation on the growth and yield of crop plants
[J］. Plant Physiol, 1983, 58:415- 427.
[7] 王勋陵.增强紫外B辐射对植物及生态系统影响研究的发展趋势
[J］.西北植物学报,2002, 22(3):670-681. WANG Xun-ling. Research advances about effects of enhanced UV-B radiation on plants and ecosystems
[J］. Acta Botanica Boreal-Occidentalia Sinica, 2002, 22(3): 670-681.
[8] 李 元,岳 明.紫外辐射生态学[M］.北京:环境科学出版社,2000:1-257. LI Yuan, Yue Ming. Ultraviolet radiation ecology[M］. Beijing: Environmental Science Press, 2000: 1-257.
[9] 颜景义,杨志敏,郑有飞.UV-B对水稻叶片衰老效应
[J］.植物生理学通讯,1994，30（4）：241-248. YAN Jing-yi, Yang Zhi-min, Zheng You-fei. Effects of enhanced UV-B radiation on leaf senescence of rice. Plant Physiology Communications
[J］. 1994年，30（4）：241-248.
[10] TERAMURA A H, Ziska L H, Sztein A E. Changes in growth and photosynthetic capacity of rice with increased UV-B radiation
[J］. Physiol Plant,1991, 83:373-380.
[11] CALDWELL M M. Solar ultraviolet radiation and the growth and development of higher plant[M］// Giese A C. Photophysiology. NewYork: Academic Press, 1971: 131-137.
[12] 白宝璋,汤学军.植物生理学测试技术[M］.北京:中国科学技术出版社，1993. BAI Bao-zhang, Tang Xue-jun. Technology of plant physiology testing[M］. Beijing: Science and Technology of China Press, 1993.
[13] 郝再彬, 苍 晶, 徐 仲. 植物生理实验[M］.哈尔滨: 哈尔滨工业大学出版社,2004:104-106. HAO Zai-bin, Cang Jing, Xu Zhong. Experiment of plant physiology[M］. Harbin: Harbin Institute of Technology Press, 2004: 104-106.
[14] 高俊凤.植物生理学实验技术[M］.西安:世界图书出版社，2000. GAO Jun-feng. Experiment Techniques of plant physiology[M］. Xi'an: World Book Publishing, 2000.
[15] DAI Q J, PENG S B,Chavez A Q, et al. Intra-specific responses of 188 rice cultivars to enhanced UV-B radiation
[J］. Environ Exp Bot,1994,34:422-433.
[16] JORDAN B,He R J, Chow W S, et al. Changes in mRNA levels and polypetide subunits of ribulose-l,5-biophosphate carboxylase in response to supplementary ultraviolet-B radiation
[J］. Plant Cell Environment, 1992,15:91-98.
[17] SACHS M M, David T H. Alteration of gene expression during environmental stress in plant
[J］. Physiol Plant, 1986, 37: 363- 376.
[18] 蒋明义,郭绍川, 张学明.氧化胁迫下稻苗体内积累的脯氨酸的抗氧化作用
[J］.植物生理学报,1997,23(4): 347-352. JIANG Ming-yi, Guo Shao-chuan, Zhang Xue-ming. Proline accumulation in rice seedlings exposed to oxidative stress in relation to antioxidation
[J］. Acta Phytophysiologica Sinica, 1997, 23(4): 347-352.
[19] 杨景宏，陈 拓，王勋陵.增强UV-B辐射对小麦叶片内源ABA和游离脯氨酸的影响
[
[J］.生态学报，2000, 20(1): 39-42. YANG Jing-hong, Chen Tuo, Wang Xun-ling. Effect of enhanced UV-B radiation on endogenous ABA and free proline contents in wheat leaves
[J］. Acta Ecologica Sinica, 2000,20(1):39-42.
[20] 师生波，贡桂英, 韩 发. 不同海拔地区紫外线B辐射状况及植物叶片紫外线吸收物质含量的分析
[J］.植物生态学报，1999, 23(6):529-535. SHI Sheng-bo, Gong gui-ying,Han Fa. Analysis of the solar UV-B radiation and plant UV-B-absorbing compounds in different regions
[J］. Acta Phytoecological Sinica, 1999, 23(6):529- 535.
[21] 冯虎元，安黎哲，徐世健,等.UV-B辐射增强对大豆生长、发育、色素和产量的影响
[J］.作物学报，2001,27(3): 319-323. FENG Hu-yuan, An Li-zhe, Xu Shi-jian, et al. Effect of enhanced ultraviolet-B radiation on growth, development, pigments and yield of soybean (Glycine max(L.) Merr.)
[J］. Acta Agronomica Sinica, 2001,27(3):319-323.
[22] STRID A,Chow W S,Anderson J M. UV-B damage and protection at the molecular level in plants
[J］. Photosynthesis Research, 1994, 39: 475-489.
[23] 汤章城.逆境条件下植物脯氨酸的累积及其可能的意义
[J］.植物生理学通讯,1984,1:15-21. TANG Zhang-cheng. Accumulated proline and its possible significance of plant under the condition stress
[J］. Plant Physiology Communications, 1984,1:15-21.
[24] DUNCAN D R, Widho W. Proline accumulation and its implication incold tolerance of regenerable maize callus
[J］. Plant Physiol, 1987,83:703-708.
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脚注
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基金
新疆气象局科研基金项目（200713，国家重大基础研究发展计划项目资助（2009CB825101）
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