| 应用电导率法及Logistic方程测试椰子幼苗耐寒性研究 |
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| 引用本文： | 曹红星,宋唯一,孙程旭,陈思婷,唐龙祥,赵松林.应用电导率法及Logistic方程测试椰子幼苗耐寒性研究[J].广西植物,2009,29(4):510-513. |
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| 作者姓名： | 曹红星 宋唯一 孙程旭 陈思婷 唐龙祥 赵松林 |
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| 作者单位： | 1. 中国热带农业科学院,椰子研究所,海南,文昌,571339
2. 商丘师范学院,生命科学系,河南,商丘,476000 |
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| 基金项目： | 国家科技基础条件平台子项目，中央级公益性科研院所基本科研业务费 |
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| 摘 要： | 以一年生椰子的叶片为材料,在不同低温条件下处理12h后,对椰子5个品种叶片浸出液的电导率进行测定,应用Logistic方程建立回归模型求出半致死温度。结果表明,在低温胁迫过程中,5个椰子品种的相对电导率均随温度的下降而持续上升,耐寒性大小顺序依次为:海南高种椰子>黄矮椰子>红矮椰子>杂交种椰子>香水椰子,其半致死温度在7.34～12.44℃之间。研究结果为椰子的耐寒选育提供理论依据。
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| 关 键 词： | 椰子 耐寒性 电导率 Logistic方程 |
Measurement of coldness by electrical conductivity
method in associated with the Logistic
Equation in coconut seedlings |
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| CAO Hong-Xing,SONG Wei-Yi,SUN Cheng-Xu,CHEN Si-Ting,TANG Long-Xiang,ZHAO Song-Lin.Measurement of coldness by electrical conductivity
method in associated with the Logistic
Equation in coconut seedlings[J].Guihaia,2009,29(4):510-513. |
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| Authors: | CAO Hong-Xing SONG Wei-Yi SUN Cheng-Xu CHEN Si-Ting TANG Long-Xiang ZHAO Song-Lin |
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| Institution: | 1.Coconut Research Institute, CATAS, Wenchang 571339, China; 2.Department of
Life Science, Shangqiu Normal University, Shangqiu 476000, China |
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| Abstract: | One-year-old leaves of 5 coconut cultivars were used to detect relative conductivity under different cold temperature treatment. The semi-lethal temperature (LT50) was conducted by using conductance method with Logistic Equation. The results showed that the relative conductivity were increased as temperature decreased. The hardiness of the tested cultivars was listed as Hainan local tall coconut>Yellow Dwarf coconut>Red Dwarf coconut>Hybrid of coconut>Aromatic coconut,the semi-lethal temperature ranged from 7.34 ℃ to12.44 ℃. This result could provide the theory basis for cold tolerance breeding of coconut. |
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| Keywords: | coconut cold tolerance relative electric conductivity (REC) logistic equation |
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