应用电导率法及Logistic方程测定油橄榄品种的抗寒性
对6个油橄榄品种进行低温胁迫（5、0、-5、-10℃）处理,应用电导率法及Logistic方程测定不同油橄榄品种的抗寒性。结果表明,油橄榄叶片相对电导率随着处理温度的不断降低而呈＂S＂型曲线变化,叶片伤害率变化趋势与叶片相对电导率基本一致;在相同处理温度下叶片伤害率和相对电导率有较大差异,间接反映了不同品种的抗寒性强弱,结合Logistic方程可计算油橄榄的半致死温度（LT50）;油橄榄叶片SOD、POD、CAT酶活性随胁迫温度的降低总体上均呈先升高后下降的趋势,其中皮削利的3种酶活性均显著高于其他品种;6个品种的油橄榄抗寒性差异显著,由强到弱依次为皮削利〉配多灵〉莱星〉阿斯〉鄂植8号〉佛奥。...
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| Published in | 广东农业科学 Vol. 42; no. 1; pp. 13 - 17 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
甘肃农业大学林学院,甘肃兰州,730070%甘肃农业大学生命科学与技术学院/甘肃省干旱生境作物学重点实验室,甘肃兰州,730070
2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1004-874X |
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| Summary: | 对6个油橄榄品种进行低温胁迫（5、0、-5、-10℃）处理,应用电导率法及Logistic方程测定不同油橄榄品种的抗寒性。结果表明,油橄榄叶片相对电导率随着处理温度的不断降低而呈＂S＂型曲线变化,叶片伤害率变化趋势与叶片相对电导率基本一致;在相同处理温度下叶片伤害率和相对电导率有较大差异,间接反映了不同品种的抗寒性强弱,结合Logistic方程可计算油橄榄的半致死温度（LT50）;油橄榄叶片SOD、POD、CAT酶活性随胁迫温度的降低总体上均呈先升高后下降的趋势,其中皮削利的3种酶活性均显著高于其他品种;6个品种的油橄榄抗寒性差异显著,由强到弱依次为皮削利〉配多灵〉莱星〉阿斯〉鄂植8号〉佛奥。 |
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| Bibliography: | 44-1267/S Olea europaea L.; cold tolerance; relative electric conductivity; Logistic equation; semi-lethal temperature LING Fan, LI Chao-zhou, HUI Zhen-long, JIAO Jian, LYU Peng （ 1.College of Forestry, Gansu Agricultural University,Lanzhou 730070, China; 2. College of Life Science and Technology,Gansu Agricultural University/Gansu Provincial Key Laboratory of Aridland Crop Science ,Lanzhou 730070, China） Under low temperature stress（5, 0,-5,-10℃） on 6 olive varieties, the results indicated that the leaf relative conductivity increased as temperature decreasing, presenting ＂S＂ type curve change. The trend of leaf damage rate was consistent with the relative electric conductivity. The leaf damage rate and electric relative conductivity were different significantly in 6 varieties of olive leaves at the same treatment temperature, indirectly reflected the cold tolerance of different varieties of olive. The semilethal temperature（LT50） was conducted by using conductance method with Logistic Equation. The activity of |
| ISSN: | 1004-874X |