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贵州茶树主栽品种福鼎大白茶冷害指标研究

侯双双 古书鸿 谷晓平 薛旭 韩淑梅 胡家敏 刘宇鹏

侯双双,古书鸿,谷晓平,等. 贵州茶树主栽品种福鼎大白茶冷害指标研究 [J]. 福建农业学报,2019,34(12):1397−1403. doi: 10.19303/j.issn.1008-0384.2019.12.006
引用本文: 侯双双,古书鸿,谷晓平,等. 贵州茶树主栽品种福鼎大白茶冷害指标研究 [J]. 福建农业学报,2019,34(12):1397−1403. doi: 10.19303/j.issn.1008-0384.2019.12.006
HOU S S, GU S H, GU X P, et al. Cold-injury Indicator for Camellia sinensis cv. Fuding-dabaicha in Guizhou Province [J]. Fujian Journal of Agricultural Sciences,2019,34(12):1397−1403. doi: 10.19303/j.issn.1008-0384.2019.12.006
Citation: HOU S S, GU S H, GU X P, et al. Cold-injury Indicator for Camellia sinensis cv. Fuding-dabaicha in Guizhou Province [J]. Fujian Journal of Agricultural Sciences,2019,34(12):1397−1403. doi: 10.19303/j.issn.1008-0384.2019.12.006

贵州茶树主栽品种福鼎大白茶冷害指标研究

doi: 10.19303/j.issn.1008-0384.2019.12.006
基金项目: 贵州省农委合作项目(黔农函[2017]89号);贵州省科技计划项目(黔科合NY字[2011]3091号);贵州省科技计划项目(黔科合支撑[2016]2612号);贵州大学引进人才科研项目(自然科学)(贵大人基合字[2016]34号)
详细信息
    作者简介:

    侯双双(1987−),女,硕士,讲师,研究方向:农业气象灾害及生态学(E-mail:191298318@qq.com

    通讯作者:

    谷晓平(1968−),女,博士,教授级高工,研究方向:气候、生态学(E-mail:16114331@qq.com

  • 中图分类号: S 166

Cold-injury Indicator for Camellia sinensis cv. Fuding-dabaicha in Guizhou Province

  • 摘要:   目的  探明贵州茶叶主栽品种福鼎大白茶的低温冷害指标,为精准茶叶气象指数保险和茶叶农业气象服务提供科学指导。  方法  利用人工气候室模拟贵州低温冷害天气过程,测定茶叶不同低温冷害过程中生理指标以反映茶叶低温环境下的生长状态;拟合细胞伤害率与低温胁迫之间的Logistic函数关系,确定茶树生长的低温半致死温度,以量化不同低温冷害天气过程中茶叶的冷害指标。  结果  随低温程度的加重,SOD活性大致呈上升趋势,MDA含量大致呈先升高后下降趋势,相对电导率R呈持续上升趋势;低温冷害持续日数不同,对应低温半致死温度不同,低温持续时间越长低温半致死温度越高,低温冷害天气持续3、5和7 d时,低温半致死温度分别为1.5 、1.8 和2.6℃。  结论  福鼎大白茶冷害生长响应特征与低温冷害程度和持续天数密切相关:最低温度3℃以下的低温危害比3℃以上大;低温过程持续7 d的低温危害比持续3、5 d时严重;低温半致死温度随冷害持续时间的延长而升高,因此低温冷害指标的制定应依据当地倒春寒冷害气候特征进行量化。
  • 图  1  低温胁迫下茶叶SOD活性特征

    Figure  1.  SOD properties in tea plants under low-temperature stress

    图  2  低温胁迫下茶叶MDA特征

    Figure  2.  MDA properties in tea plants under low-temperature stress

    图  3  低温胁迫下茶叶相对电导率R特征

    Figure  3.  Relative electric conductivity of tea plants under low-temperature stress

    图  4  低温1/6处理前后对比

    (左上:处理前,右上:处理3 d后,左下:处理5 d后,右下:处理7 d后)

    Figure  4.  Contrast of low temperature 1/6 for treatment before and after

    (Top left: before processing, Top right: after 3 d, Lower left: after 5 d, Lower right: after 7 d)

    表  1  不同低温冷害持续时间下的茶叶Logistic函数参数及低温半致死温度

    Table  1.   Parameters in logistic function and semi-lethal temperature of tea plants in response to duration of low-temperature exposure

    低温冷害持续时间
    Chilling damage duration
    ab相关系数R2
    Correlation coefficient
    低温半致死温度/℃
    Lethal temperature
    3 d0.260.920.93*1.5℃
    5 d0.121.180.99**1.8℃
    7 d0.210.610.95**2.6℃
    注:**拟合度达<0.05的显著性水平;*拟合度达<0.1的显著性水平。
    Note: **indicates the significance level is 0.05; * indicates significance level is 0.1.
    下载: 导出CSV
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  • 收稿日期:  2019-07-23
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