[1]汪星星,陈 钢,戴嘉豪,等.光质对杉木幼苗新叶叶绿素荧光规律的影响[J].福建农林大学学报(自然科学版),2021,50(05):624-629.[doi:10.13323/j.cnki.j.fafu(nat.sci.).2021.05.007]
 WANG Xingxing,CHEN Gang,DAI Jiahao,et al.Effects of different light quality on the fluorescence rule of chloride in new leaves of Cunninghamia lanceolata seedlings[J].,2021,50(05):624-629.[doi:10.13323/j.cnki.j.fafu(nat.sci.).2021.05.007]
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光质对杉木幼苗新叶叶绿素荧光规律的影响()
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福建农林大学学报(自然科学版)[ISSN:1671-5470/CN:35-1255/S]

卷:
50卷
期数:
2021年05期
页码:
624-629
栏目:
出版日期:
2021-09-25

文章信息/Info

Title:
Effects of different light quality on the fluorescence rule of chloride in new leaves of Cunninghamia lanceolata seedlings
文章编号:
1671-5470(2021)05-0624-06
作者:
汪星星1 陈 钢1 戴嘉豪1 曹光球12 曹世江12
(1.福建农林大学林学院; 2.国家林业局杉木工程技术研究中心,福建 福州 350002)
Author(s):
WANG Xingxing1 CHEN Gang1 DAI Jiahao1 CAO Guangqiu12 CAO Shijiang12
(1.Fujian Agriculture and Forestry University; 2.State Forestry Administration Chinese Fir Engineering Technology Research Center, Fuzhou, Fujian 350002, China)
关键词:
杉木 幼苗新叶 光质 荧光 生长期
Keywords:
Cunninghamia lanceolata seedling new leaf light quality fluorescence growth period
分类号:
948.5
DOI:
10.13323/j.cnki.j.fafu(nat.sci.).2021.05.007
文献标志码:
A
摘要:
选取光质和杉木生长周期2个影响因子,设置4个不同处理,研究不同光质处理下同一生长周期内叶绿素荧光含量变化及不同生长周期同一光质处理下的叶绿素荧光含量变化.结果表明,相较于暗下最大荧光产量而言,白光处理的荧光参数值高于其它3个处理,说明白光有利于PSⅡ电子传递,而红蓝光组合的叶绿素荧光参数偏低,对PSⅡ电子传递产生抑制作用; 相较于初始荧光Fo而言,白光处理下的参数在整个杉木幼苗发育时期均低于红蓝光组合,证明在红蓝光(1:1)处理下,其初始荧光值使PSⅡ反应中心受到破坏或者失活; 白光处理下的最大可变荧光Fv参数值在整个杉木发育阶段均高于红光和红蓝光组合下的最大荧光值参数,说明白光处理下,PSⅡ最初的电子受体QA的氧化还原状况好于其它两种光质; 在杉木整个发育阶段,基本上呈现出“白>红>蓝>红蓝光”(1:1),即在白光处理下,植物未受到光抑制作用,与Fv/Fm的规律基本一样,表明杉木随着生长时间的增长,对外界生境的抗逆性增强,从而幼苗能够健康生长.
Abstract:
Two influencing factors of the growth cycle of light and Chinese fir were selected, and four different treatments were set up. The changes of chlorophyll fluorescence content in the same growth cycle and chlorophyll fluorescence content under the same light quality treatment and different growth cycles were studied. The results showed that for the maximum fluorescence yield under dark, the fluorescence parameters under white light treatment were larger than those of the other three treatments, indicating that white light was beneficial to PSⅡ electron transfer, while the chlorophyll fluorescence parameters of red and blue light combination were low, which inhibited the PSⅡ electron transfer. For the initial fluorescence Fo, the parameters under white light treatment were low in the whole seedling stage of Chinese fir. The initial fluorescence value under the treatment of red and blue light(1:1)destroyed or inactivated the PSⅡ reaction center, and the maximum variable fluorescence Fv parameter value under white light treatment was larger than that under the combination of red and blue light in the whole development stage of Chinese fir, indicating that the redox condition of PSⅡ initial electron receptor QA under white light treatment was better than that under the other two kinds of light; Fv/Fm, as an important parameter to measure light inhibition, reflects PSⅡ efficiency of primary light energy conversion in the whole development stage of Chinese fir. It basically presents “white>red, blue>red and blue light(1:1)”, that is, under white light treatment, plants are not inhibited by light, which is basically the same as the law of Fv/Fm. It indicates that with the growth of Chinese fir, the resistance to external habitats increases, ensuring the healthy development of Chinese fir seedlings.

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备注/Memo

备注/Memo:
收稿日期:2021-02-08 修回日期:2021-03-09 基金项目:林学院高峰学科建设项目(71201800739)). 作者简介:汪星星(1997-),男.研究方向:森林培育.Email:13355632751@163.com.通信作者曹世江(1984-),男,博士,硕士生导师.研究方向:森林培育.Email:csjiang1123@126.com.
更新日期/Last Update: 1900-01-01