浙江农业学报 ›› 2018, Vol. 30 ›› Issue (7): 1168-1174.DOI: 10.3969/j.issn.1004-1524.2018.07.09

• 园艺科学 • 上一篇    下一篇

14种辣椒对高温胁迫的生理响应及抗热性评价

胡能兵, 庞丹丹, 隋益虎, 舒英杰, 何克勤, 朱小妹   

  1. 安徽科技学院 农学院,安徽 凤阳 233100
  • 收稿日期:2017-08-11 出版日期:2018-07-20 发布日期:2018-08-02
  • 作者简介:胡能兵(1980—),男,安徽东至人,博士,副教授,主要从事辣椒育种及植物组织培养研究。E-mail: hunengbing@126.com
  • 基金资助:
    高校优秀青年人才支持计划(gxyqZD2017070); 安徽科技学院稳定人才项目(NXWD201701); 安徽省教育厅重点项目(KJ2014A057)

Physiological response to heat stress and heat resistances evaluation of 14 Capsicum varieties

HU Nengbing, PANG Dandan, SUI Yihu, SHU Yingjie, HE Keqin, ZHU Xiaomei   

  1. College of Agriculture, Anhui Science and Technology University, Fengyang 233100, China
  • Received:2017-08-11 Online:2018-07-20 Published:2018-08-02

摘要: 采用38 ℃的高温胁迫,研究了14份辣椒在不同处理时间内(24、48、72、96 h)的热害指标及叶绿素荧光参数,以期对辣椒的抗热性能进行评定并筛选出最优组合。结果表明,随着高温处理时间的增加,辣椒的热害指数和失水率会随之增加,而Fv/Fm则降低。综合运用热害指标的隶属度分析法和叶绿素荧光参数法得知:品种2、6、1可作为抗高温组合,而品种11、10则应排除,两种评价方法的相符率达到75%,在筛选出最优组合的同时,也验证了两种方法的可靠性。

关键词: 高温胁迫, 辣椒, 热害指标, 荧光参数

Abstract: Under the heat stress of 38 ℃, the heat damage index and chlorophyll fluorescence parameters of 14 Capsicum varieties at different processing time (24, 48, 72 and 96 h) were studied, and furthermore their abilities of heat resistance were evaluated and the best Capsicum varieties were selected by dealing with the data above. The results showed that, with the increase of high temperature treatment time, the thermal damage index(TDI) and water loss rate(WLR) of pepper increased and fluorescence parameter of Fv/Fm decreased. It was concluded by the membership analysis method and the parameters of chlorophyll fluorescence method by heat injury index that variety 2, 6, 1 can be used as the germplasm resisting high temperature stress and variety 11, 10 would be eliminated, with the coincidence rate reached 75% of the two methods, which could screen the optimum combination and verify the reliability of the two methods.

Key words: heat stress, Capsicum annuum L., heat damage index, fluorescence parameter

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