【作者】 王进； 张静； 翟小娟； 瞻杰鹏； 田丽萍；

【Author】 WANG Jin1 , ZHANG Jing2,ZHAI Xiao-juan2,ZHAN Jie-peng2,TIAN Li-ping2 (1Wulanwusu Agrometeorological Experiment Station , Shihezi Xinjiang 832003 2 College of Life Sciences, Shihezi University, Shihezi 832003 China;)

【机构】 乌兰乌苏农业气象试验站； 石河子大学生命科学学院；

【摘要】 【目的】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,280-320nm)增加对棉花生理、品质和产量的影响。【方法】通过人工增加对棉花UV-B辐射,设置4个处理,每个处理的辐射剂量分别为0w/m2(R0)、0.5w/m2(R1)、1w/m2(R2)、1.5w/m2(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】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。【结论】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。更多还原

【Abstract】 【Objective】The objectives of this research were to study the influences of enhanced ultraviolet radiation (UV-B, 280-320nm) on physiological indicator, yield and quality of cotton plants grown were investigated under cropland conditions. 【Method】Increasing UV-B radiation by people, it is 0 w/m2 (R0)、0.5w/m2(R1)、1w/m2(R2)、1.5w/m(2R3) for the four processing, studied the effect of enhancing Ultraviolet-B radiation on chlorophyll content, soluble protein and free proline content of cotton leaves. 【Result】With the increase in UV-B radiation, chlorophyll content and soluble protein content at first increased and then decreased, The relative contents of proline was elevated, yield and quality of cotton were significantly decreased. 【Conclusion】 Enhanced UV-B radiation resulted in a degree of damage to cotton, When the radiation exceed the body of cotton plant, the greater the degree of injury , resulted in the quality and cotton production reduce at last.更多还原