[1]钱萍仙,李学孚,吴月燕,等.遮阴对樟叶槭容器苗生长和生理特性的影响[J].江苏农业学报,2015,(03):667-672.[doi:10.3969/j.issn.1000-4440.2015.03.032]
　QIAN Ping-xian,LI Xue-fu,WU Yue-yan,et al.Influence of shading on growth and physiological characteristics of container seedlings of Acer cinnamomifolium[J].,2015,(03):667-672.[doi:10.3969/j.issn.1000-4440.2015.03.032]
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遮阴对樟叶槭容器苗生长和生理特性的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2015年03期
页码:
667-672
栏目:
园艺
出版日期:
2015-06-30

文章信息/Info

Title:
Influence of shading on growth and physiological characteristics of container seedlings of Acer cinnamomifolium
作者:
钱萍仙1; 李学孚12; 吴月燕1; 饶慧云1; 刘蓉1; 李美芹12; 付涛3
(1.浙江万里学院生物与环境学院，浙江宁波315100；2.上海海洋大学水产与生命学院，上海201306；3.宁波城市职业技术学院，浙江宁波315502)
Author(s):
QIAN Ping-xian1; LI Xue-fu12; WU Yue-yan1; RAO Hui-yun1; LIU Rong1; LI Mei-qin12; FU Tao3
(1.College of Biology and Environment, Zhejiang Wanli University, Ningbo 315100, China;2.College of Fisheries and Life, Shanghai Ocean University, Shanghai 201306, China；3.Ningbo City College of Vocational Technology, Ningbo 315502, China)
关键词:
樟叶槭; 容器苗; 遮阴覆盖; 光合作用; 抗氧化酶活性
Keywords:
Acer cinnamomifolium; container seedling; light shading; photosynthesis; antioxidant enzyme activity
分类号:
S718.43
DOI:
10.3969/j.issn.1000-4440.2015.03.032
文献标志码:
A
摘要:
以无遮阴覆盖为对照，研究了1层膜遮阴(遮光率约30%)、2层膜遮阴(遮光率约55%)和3层膜遮阴(遮光率约75%)对2年生樟叶槭容器苗形态特征、光合作用参数和保护酶活性的影响。结果表明，1层遮阴处理樟叶槭容器苗生长健壮，主要表现为株高、叶片数、单株叶面积、根系质量、根直径、根系总长和须根数等生长指标均显著升高；叶绿素总量、叶绿素a（Chl.a）、叶绿素a/b（Chl.a/Chl.b）以及净光合速率(Pn)、蒸腾速率(Tr)和气孔导度(Gs)等光合参数均显著升高，叶绿素b（chl.b）无显著变化；还原性谷胱甘肽酶（GSH）、过氧化物酶（POD）、过氧化氢酶(CAT)和超氧化物歧化酶(SOD)活性均显著升高，MDA含量显著下降；2层膜和3层膜遮阴处理樟叶槭容器苗的各项生长指标下降显著，光合作用水平下降。因此，夏季适度遮阴能促进樟叶槭容器苗的生长。
Abstract:
Taking no shading as control, the influence on the morphological characteristics, photosynthetic parameters, protective enzyme activity of two-year Acer cinnamomifolium container seedlings were investigated under the conditions of single-layer-membrane shading (70% of full illumination), two-layer-membrane shading (45% of full illumination), and three-layer-membrane shading (25% of full illumination). Container seedlings grew stronger in single-layer membrane shading treatment, the plant height, numbers of blade, leaf area, root weight, root diameter, total root length, fiber root number being improved. Total chlorophyll content, chlorophyll a, chlorophyll a/b, net photosynthetic rate(Pn), transpiration rate(Tr), stomatal conductance(Gs) were significantly increased, compared to the control. The activity of reduced glutathione(GSH) as well as the activities of peroxidase, catalase and superoxide dismutase were significantly boosted, while the concentration of MDA was deereased. The growth parameters of container seedlings were significantly inhibited in three-layer or two-layer membrane treatments. Therefore, one-layer-membrane summer shading treatment could promote the growth of A. cinnamomifolium container seedlings.

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备注/Memo

备注/Memo:
收稿日期：2014-10-23 基金项目：国家科技部项目(2012GA701002) 作者简介：钱萍仙（1990-），女，浙江杭州人，硕士研究生，研究方向为生物技术。（Tel） 0574-88222235；（E-mail) 158678460@qq.com 通讯作者：吴月燕， (Tel) 0574-88222235;(Email) wyynb2009@163.com
更新日期/Last Update: 2015-06-30