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| 广西油茶主栽无性系低温半致死温度与耐寒性研究 | |
| 引用本文： | 曾雯珺,江泽鹏,陈伟,王东雪,夏莹莹,叶航.广西油茶主栽无性系低温半致死温度与耐寒性研究[J].中国农学通报,2013,29(4):23-25. |
| 作者姓名： | 曾雯珺 江泽鹏 陈伟 王东雪 夏莹莹 叶航 |
| 作者单位： | 1. 广西林业科学研究院,南宁,530002 2. 八步区林业科学研究所,广西贺州,542802 |
| 基金项目： | 广西科学研究与技术开发计划项目课题“油茶新品种选育研究——油茶优良抗性新品种及砧木品系的选育与应用”(桂科攻1123004-2A);广西科技攻关与新产品试制课题“油茶优良无性系高效栽培技术集成示范”(桂科攻10100012-1A) |
| 摘 要： | 为了鉴定广西主栽无性系的耐寒性，采用电导法测定广西主栽的4个油茶无性系‘岑软2号’、‘岑软3号’、‘岑软22号’和‘岑软24号’在不同低温下细胞膜透性的变化，配合Logistic方程，分别求出低温半致死温度(LT50)。结果表明：随着温度的降低，细胞伤害率呈“S”型曲线变化，与温度呈极显著负相关；4个无性系的低温半致死温度分别为-9.0℃、-12.6℃、-9.9℃、-10.8℃，耐寒性由强到弱依次为：‘岑软3号’＞‘岑软24号’＞‘岑软22号’＞‘岑软2号’。 |
| 关 键 词： | 域名主名命名 域名主名命名 |
| 收稿时间： | 2012/9/18 0:00:00 |
| 修稿时间： | 2012/11/2 0:00:00 |
The Research of Semi-lethal Temperature and Cold Tolerance of Camellia oleifera Cultivars Clones in Guangxi |
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| zeng wenjun.The Research of Semi-lethal Temperature and Cold Tolerance of Camellia oleifera Cultivars Clones in Guangxi[J].Chinese Agricultural Science Bulletin,2013,29(4):23-25. | |
| Authors: | zeng wenjun |
| Institution: | 1 (1 Guangxi Forestry Research Institute,Nanning 530002;2 Babu District Forestry Science Institute,Hezhou Guangxi 542802) |
| Abstract: | In order to identify the cold tolerance of Camellia oleifera clones cultivars in Guangxi, the changes of cell membrane permeability at different low temperature of‘Cenruan 2’,‘Cenruan 3’,‘Cenruan 22’and‘Cenruan 24’were measured using the conductance method. The semi-lethal temperature (LT50) of 4 clones was obtained with the logistic equation. The results showed that: as the temperature decreases, cell injury rate was S-shaped curve, and temperature was highly significant negative correlation. The semi-lethal temperature of four clones was respectively: -9.0℃, -12.6℃, -9.9℃, -10.8℃. The order of cold resistance from strong to weak was:‘Cenruan 3’>‘Cenruan 24’>‘Cenruan 22’>‘Cenruan 2’. |
| Keywords: | cold resistance |
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