| 低温胁迫下云南3个核桃品种抗寒生理生化指标的变化 |
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| 引用本文： | 潘莉,;范志远,;曾清贤,;刘娇,;李淑芳,;杜春花,;赵廷松,;杨建华,;邹伟烈,;张顺芬.低温胁迫下云南3个核桃品种抗寒生理生化指标的变化[J].云南林业科技,2014(6):72-75. |
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| 作者姓名： | 潘莉 ;范志远 ;曾清贤 ;刘娇 ;李淑芳 ;杜春花 ;赵廷松 ;杨建华 ;邹伟烈 ;张顺芬 |
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| 作者单位： | [1]云南省林业科学院,云南昆明650201; [2]云南省森林植物培育和开发利用重点实验室,国家林业局云南珍稀濒特森林植物保护和繁育实验室,云南昆明650201; [3]云南省鲁甸县林业局,云南鲁甸657100 |
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| 基金项目： | 云南省森林植物培育与开发利用重点实验室开放基金资助项目（2009KF12）,云南省重点新产品开发计划项目（2009BB002）. |
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| 摘 要： | 采用人工模拟低温环境的方法，以漾泡、大麻1号和大麻2号3个核桃品种的2年生离体叶片为试材，测定不同温度下其相对电导率、丙二醛、可溶性糖和脯氨酸等抗寒生理生化指标。结果表明：随着处理温度的降低，3个品种核桃的相对电导率逐渐升高，丙二醛和可溶性糖含量则呈现“升高-降低-升高”的变化规律，脯氨酸含量分别呈“升高-降低”的变化规律。综合4个抗寒生理生化指标，大麻1号和大麻2号的抗寒能力强于漾泡核桃。
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| 关 键 词： | 核桃 抗寒性 生理生化指标 低温胁迫 |
Physiological and Biochemical Indexes of 3 Yunnan Walnut Varieties under Artificial Low Temperature Stress |
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| Institution: | PAN Li, FAN Zhi-yuan, ZENG Qing-xian, LIU Jiao, LI Shu-fang, DU Chun-hua, ZHAO Ting-song, YANG Jian-hua, ZOU Wei-lie, ZHANG Shun-fen (1. Yunnan Academy of Forestry, Kunming Yunnan 650201, P. R. China; 2. Yunnan Key Laboratory of Culture and Breeding of Forest Plants Yunnan Laboratory of Conservation and Reproduction of Endangered Forest Plants, State Forestry Administration, Kunming Yunnan 650201, P. R. China; 3. Forestry Bureau of Ludian County, Ludian Yunnan 657100, P. R. China) |
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| Abstract: | With two-year isolated branches and leaves as test materials of 3 walnut varieties of “Yangpao”,“Dama 1” and “Dama 2”, the artificial low temperature treatment was used to measure and analyze cold-resistant physiological and biochemical indexes of relative electrical conductivity rate, MDA, soluble sugar and proline of the branches and leaves under different low temperatures.The results showed that, along with reduction of temper-ature, the relative electrical conductivity rate of branches of the 3 walnut varieties increased gradually; the MDA content and soluble sugar content of the three walnuts leaves increased firstly, then decreased and increased again;the proline content increased firstly and then decreased.On the whole, the cold resistance of “Dama 1” and“Dama 2” was better than that of “Yangpao”. |
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| Keywords: | walnut cold resistance physiological and biochemical indexes artificial low temperature stress |
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