| 以电导法配合Logistic方程确定不同冬青抗寒性 |
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| 引用本文： | 赵明明,彭方仁,鲁丹,任莺,华宏. 以电导法配合Logistic方程确定不同冬青抗寒性[J]. 林业科技开发, 2012, 26(3): 68-70 |
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| 作者姓名： | 赵明明 彭方仁 鲁丹 任莺 华宏 |
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| 作者单位： | 1. 南京林业大学森林资源与环境学院,南京,210037
2. 南京市林业站 |
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| 摘 要： | 采用人工模拟低温处理技术测定了6种(含品种)冬青树种离体叶片的相对电导率,并用Logistic方程计算它们的半致死温度(LT50)。结果表明:6种(含品种)冬青耐低温能力有显著差异,由高到低依次为克恩氏冬青>欧洲冬青>大别山冬青>‘蓝少年’冬青>杂种冬青>‘蓝少女’冬青,其半致死温度值LT50在-11～-24℃之间。
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| 关 键 词： | 冬青 电导率 Logistic方程 抗寒性 |
Measurement of cold tolerance based on conductivity method and the Logistic equation in Ilex |
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| ZHAO Ming-ming , PENG Fang-ren , LU Dan , RENG Ying , HUA Hong. Measurement of cold tolerance based on conductivity method and the Logistic equation in Ilex[J]. China Forestry Science and Technology, 2012, 26(3): 68-70 |
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| Authors: | ZHAO Ming-ming PENG Fang-ren LU Dan RENG Ying HUA Hong |
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| Affiliation: | College of Forest Resources and Environment,Nanjing Forestry University,Nanjing 210037,China |
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| Abstract: | An artificial simulation of low temperature was used to measure relative electric conductivity in leaves of 6 Ilex species and cultivars trees and lethal temperature 50(LT50) were calculated using logistic equation.The results indicated that the tolerance of low temperature in 6 species and cultivars of Ilex trees had a significant difference,and the cold resistance from strong to weak was I.×koehneana’Emily Bruner’.>I.triflorap>I.dabieshanensis>I.mersevae ’Blue Boy’> Ilex×’Nellie R.Steven’>I.mersevae ’Blue Gir’.The LT50 of Ilex was between-11——24℃. |
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| Keywords: | Ilex relative electric conductivity(REC) Logistic equation cold tolerance |
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