摘要
通过对高温胁迫下猕猴桃种质资源多项生理指标的研究,鉴定耐热性种质材料。以7个猕猴桃种类的17份种质资源为材料,对其在不同温度处理条件下CAT活性、POD活性、SOD活性、丙二醛含量(MDA)、脯氨酸含量(PRO)、可溶性蛋白含量(protein)、PPO活性和PAL活性等8个生理指标进行测定,以各项指标的耐热系数作为衡量耐热性的指标,将8个单项生理指标综合成为4个相互独立的综合指标,并通过主成分分析、隶属函数分析对17份猕猴桃种质资源进行耐热性综合评价,筛选出了华特、米良1号耐热性种质材料。
The physiological indices of germplasm resources of Kiwifruit under different temperature treatments were studied to select the heat-resistance species.The heat resistant coefficient of 8 physiological indices including CAT activity,POD activity,SOD activity,MDA content,PRO content,protein content,PPO activity and PAL activity,of 17 kiwifruit germplasm resources of 7 species were evaluated by principal components analysis and membership function analysis.The results showed that the 8 single indexes could be classified into 4 independent comprehensive components.The heat-resistance of 17 kiwifruit germplasm resources was evaluated by principal component analysis and membership function analysis,2 heat-resistant kiwifruit accessions named Huate and Miliang No.1 were screened out.The result provide valuable insights for breeding heat tolerant kiwifruit and for studying the heat-resistance mechanism of kiwifruit.
作者
汤佳乐
卜范文
张平
林文力
吴念庆
徐海
TANG Jia-le;BU Fan-wen;ZHANG Ping;LIN Wen-li;WU Nian-qing;XU Hai(Hunan Academy of Agriculture Sciences,Hunan Horticulture Research Institute,Changsha 410125,PRC;Observation Station of Fruit Trees in Central China,Ministry of Agriculture of China,Changsha 410125,PRC;Season Fruits Engineering Technology Research Center of Changsha 410125,PRC;Sibaoshan Biotechnology Co.Ltd,Huaihua 419300,PRC)
出处
《湖南农业科学》
2018年第12期21-25,共5页
Hunan Agricultural Sciences
基金
湖南省农业科技创新资金项目(2107JC39)
湖南省农业科技创新资金项目(2018ZD09)
湖南省重点研发项目(2018NK2013)
中央引导地方科技发展专项资金项目(2017XF5030)
关键词
猕猴桃
耐热性
生理指标
综合评价
主成分分析
kiwifruit
heat-resistance
physiological indices
comprehensive evaluation
principal component analysis
