[1]韦金河,闻婧,张俊,等.夏季遮光对3 种槭树PSⅡ叶绿素荧光参数的影响[J].江苏农业学报,2015,(01):172-179.[doi:10.3969/j.issn.1000-4440.2015.01.027]
 WEI Jin-he,WEN Jing,ZHANG Jun,et al.Effects of summer shading on PSⅡchlorophyll fluorescence parameters in three maple trees[J].,2015,(01):172-179.[doi:10.3969/j.issn.1000-4440.2015.01.027]
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夏季遮光对3 种槭树PSⅡ叶绿素荧光参数的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2015年01期
页码:
172-179
栏目:
园艺
出版日期:
2015-02-28

文章信息/Info

Title:
Effects of summer shading on PSⅡchlorophyll fluorescence parameters in three maple trees
作者:
韦金河闻婧张俊孟力力陈柳施宇恬
(江苏省农业科学院观光农业研究中心,江苏南京210014)
Author(s):
WEI Jin-heWEN JingZHANG JunMENG Li-liCHEN-LiuSHI Yu-tian
(Research Center of Sightseeing Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China)
关键词:
槭树叶绿素荧光遮光
Keywords:
Aceraceaechlorophyll fluorescenceshading
分类号:
S687
DOI:
10.3969/j.issn.1000-4440.2015.01.027
文献标志码:
A
摘要:
以鸡爪槭(Acer palnatum Thunb.)、青榨槭(A. davidii Franch.)和糖槭(A. saccharum Marsh.) 为材料,研究透光率分别为100%、50%、30%和10% 4种条件下,3种槭树光合特性、叶绿素含量和叶绿素荧光参数的变化。结果表明:遮光可以显著提高3种槭树叶片的Fv/Fm、PIABS、RC/CS、ET0/TR0、ET0/ABS以及叶绿素相对含量,降低ABS/RC、DI0/RC、VJ和Wk;在透光率为50%时,青榨槭和糖槭的最大净光合速率和光饱和点最优。遮光有利于提高3种槭树叶片PSⅡ反应中心对能量的转化和利用,但深度遮光难以满足槭树对光能的吸收,在透光率为50%时,3种槭树对能量的吸收和利用达到较好的平衡,是适合3种槭树生长的光照条件。
Abstract:
Acer palnatumThunb, A. davidii Franch and A. saccharum Marsh were grown with four shading treatments(0% shading, 50% shading, 70% shading and 90%shading) to study the photosynthetic characteristics, the changes of chlorophyll centent and PSⅡchlorophyll fluorescence parameters. The results revealed that Fv/Fm, PIABS, RC/CS, ET0/TR0,ET0/ABS and chlorophyll content of three kinds of maple leaves were enhanced significantly, however, ABS/RC, DI0/RC, VJ and Wk were decreased under shading condition. A. davidii Franch. and A. saccharum March. exhibited the highest maximum net photosynthetic rate and light saturation point under 50% shading condition. Shading is favorable for the energy conversion and utilization of PSⅡreaction center were improved by shading in three maple leaves, but large area shading would hinder the absorption of light energy. Fity percent shading achieved the balance between absorption and utilization of energy, therefore is suitable for the growth of three kinds of maple plants.

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备注/Memo

备注/Memo:
收稿日期:2014-07-30 基金项目:江苏省农业科技自主创新基金[CX(13)3020] 作者简介:韦金河(1963-),男,江苏高淳人,副研究员,从事设施园艺蔬菜特殊栽培研究工作。(Tel)025-84392077,13770759377;(E-mail)wjh_2202@sina.com
更新日期/Last Update: 2015-02-28