5个茶花新品种的耐热性分析

为评价目前鲜有培育和应用的小花密花型茶花新品种对高温的适应性，以5个茶花品种为材料，利用半致死温度、生理生化测定及SPSS统计分析对其耐热性进行研究。结果表明：5个新品种的半致死温度和生理生化指标都存在显著差异，形态学及生理指标结合能够对不同茶花品种的耐热性进行有效评价，生理指标的系统聚类可以进一步解释品种的耐热性差异。垂枝粉玉的耐热性最强，其半致死温度为（64．90±2．99）℃，45℃阶段高温胁迫（8：00～20：00，45℃；20：00～08：00，40℃）处理2d后的叶片损伤率为1．10％。...

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Bibliographic Details
Published in江西农业学报 Vol. 26; no. 1; pp. 32 - 34
Main Author 张亚利 李健 奉树成
Format Journal Article
LanguageChinese
Published 上海植物园 上海城市植物资源开发应用工程技术研究中心,上海,200231%上海辰山植物园科学研究中心,上海,201602 2014
Subjects
生理生化
耐热性
茶花
高温胁迫
生理生化
耐热性
Heat tolerance
高温胁迫
茶花
Heat stress
Camellia cultivars
Physiology and biochemistry
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ISSN1001-8581

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Summary:为评价目前鲜有培育和应用的小花密花型茶花新品种对高温的适应性，以5个茶花品种为材料，利用半致死温度、生理生化测定及SPSS统计分析对其耐热性进行研究。结果表明：5个新品种的半致死温度和生理生化指标都存在显著差异，形态学及生理指标结合能够对不同茶花品种的耐热性进行有效评价，生理指标的系统聚类可以进一步解释品种的耐热性差异。垂枝粉玉的耐热性最强，其半致死温度为（64．90±2．99）℃，45℃阶段高温胁迫（8：00～20：00，45℃；20：00～08：00，40℃）处理2d后的叶片损伤率为1．10％。
Bibliography:ZHANG Ya - li1 , LI Jian2, FENG Shu - cheng1 ＊ （ 1. Shanghai Research Center of Urban Plant Resources Development and Application ＆ Engineering and Technology, Shang- hai Botanical Garden, Shanghai 200231, China; 2. Shanghai Chenshan Plant Science Research Center, Shanghai 201602, China）
36-1124/S
Heat stress; Camellia cuhivars; Physiology and biochemistry; Heat tolerance
In order to evaluate the heat tolerance of new camellia varieties which were seldom bred and used in China, the au- thor investigated the heat tolerance of five camellia cultivars by measuring their semi - lethal temperature and physiological and bio- chemical indexes through statistical analyses with SPSS software. The results indicated that there were significant differences in both semi - lethal temperature and physiological and biochemical measurements among these five cultivars. The heat tolerance of five ca- mellia cultivars could be effectively evaluated by the combined application of morphological indexes and physiological indexes, and
ISSN:1001-8581