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不同光质夜间补光对番茄幼苗耐冷性的影响

刘福长 杨玉凯 林碧英

刘福长,杨玉凯,林碧英. 不同光质夜间补光对番茄幼苗耐冷性的影响 [J]. 福建农业学报,2020,35(11):1222−1227 doi: 10.19303/j.issn.1008-0384.2020.11.007
引用本文: 刘福长,杨玉凯,林碧英. 不同光质夜间补光对番茄幼苗耐冷性的影响 [J]. 福建农业学报,2020,35(11):1222−1227 doi: 10.19303/j.issn.1008-0384.2020.11.007
LIU F C, YANG Y K, LIN B Y. Effect of Nighttime Exposure to Light from Color Lamps on Cold Tolerance of Tomato Seedlings [J]. Fujian Journal of Agricultural Sciences,2020,35(11):1222−1227 doi: 10.19303/j.issn.1008-0384.2020.11.007
Citation: LIU F C, YANG Y K, LIN B Y. Effect of Nighttime Exposure to Light from Color Lamps on Cold Tolerance of Tomato Seedlings [J]. Fujian Journal of Agricultural Sciences,2020,35(11):1222−1227 doi: 10.19303/j.issn.1008-0384.2020.11.007

不同光质夜间补光对番茄幼苗耐冷性的影响

doi: 10.19303/j.issn.1008-0384.2020.11.007
基金项目: 福建省科技计划重大专项(2081NZ0002-2)
详细信息
    作者简介:

    刘福长(1962−),男,农艺师,研究方向:设施园艺(E-mail:490835069@qq.com

    通讯作者:

    林碧英(1963−),女,教授,研究方向:蔬菜学与设施园艺(E-mail:lby3675878@163.com

  • 中图分类号: S 641.2

Effect of Nighttime Exposure to Light from Color Lamps on Cold Tolerance of Tomato Seedlings

  • 摘要:   目的   探讨不同光质夜间补光对番茄幼苗耐冷性的影响,为提高番茄幼苗耐冷性提供理论和实践依据。   方法   以倍盈番茄为试验材料,采用光质分别为白光(W)、红光(R)、蓝光(B)和红蓝组合光配比(2R/8B、5R/5B、8R/2B)等6个组合进行夜间补光处理,20 d后各处理番茄幼苗置于亚低温(10 ℃/5 ℃)下胁迫,以未补光所培育番茄幼苗为对照。   结果   与对照相比,各补光处理所培育的番茄幼苗在亚低温处理期间叶片中的电解质渗透率和丙二醛(MDA)含量上升幅度均显著低于对照,红蓝复合光(2R/8B、5R/5B、8R/2B)在亚低温胁迫期间叶片一直保持着较高的超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)活性,在亚低温胁迫6 d 时以红蓝复合8R/2B活性上升幅度最高,分别达到399.49%、129.01%和135.74%,显著高于对照。   结论   夜间补光处理均可提高番茄幼苗的耐冷性,其中以红蓝复合8R/2B补光处理的幼苗的抗低温胁迫能力最强。
  • 图  1  亚低温胁迫对不同光质夜间补光所育番茄幼苗电解质渗透率的影响

    注:不同小写字母表示在0.05水平下差异显著。下同

    Figure  1.  Effect of mild hypothermia on electrolyte permeability of tomato seedlings under nighttime exposure to light of various spectra

    Note:Data with different lowercase letters indicate significant difference at 0.05 level. Same for the following.

    图  2  亚低温胁迫对不同光质夜间补光所育番茄幼苗丙二醛含量的影响

    Figure  2.  Effect of mild hypothermia on MDA activity of tomato seedlings under nighttime exposure to light of various spectra

    图  3  亚低温胁迫对不同光质夜间补光所育番茄幼苗SOD活性的影响

    Figure  3.  Effect of mild hypothermia on SOD activity of tomato seedlings under nighttime exposure to light of various spectra

    图  4  亚低温胁迫对不同光质夜间补光所育番茄幼苗POD活性的影响

    Figure  4.  Effect of mild hypothermia on POD activity of tomato seedlings under nighttime exposure to light of various spectra

    图  5  亚低温胁迫对不同光质夜间补光所育番茄幼苗CAT活性的影响

    Figure  5.  Effect of mild hypothermia on CAT activity of tomato seedlings under nighttime exposure to light of various spectra

    表  1  试验设计光质处理

    Table  1.   Experimental design of nighttime light exposures of tomato seedlings

    处理
    Treatments
    白光
    White light
    intensity/
    µmol·m−2·s−1
    红光
    Red light
    intensity/
    µmol·m−2·s−1
    蓝光
    Blue light
    intensity/
    µmol·m−2·s−1
    对照(CK) 0 0 0
    W 100 0 0
    R 0 100 0
    B 0 0 100
    2R/8B 0 20 80
    5R/5B 0 50 50
    8R/2B 0 80 20
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出版历程
  • 收稿日期:  2020-01-13
  • 修回日期:  2020-03-30
  • 网络出版日期:  2020-11-24
  • 刊出日期:  2020-11-30

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