[1]柏明娥,方建华,徐高福,等.青钱柳光合作用日变化和光合响应特征[J].浙江林业科技,2016,36(01):1-5.
 BAI Ming-e,FANG Jian-hua,XU Gao-fu,et al.Diurnal Variation of Photosynthetic Parameters and Response Character of Cyclocarya paliurus Seedlings[J].Journal of Zhejiang Forestry Science and Technology,2016,36(01):1-5.
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青钱柳光合作用日变化和光合响应特征()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
36
期数:
2016年01期
页码:
1-5
栏目:
出版日期:
2016-06-30

文章信息/Info

Title:
Diurnal Variation of Photosynthetic Parameters and Response Character of Cyclocarya paliurus Seedlings
作者:
柏明娥1方建华2徐高福3沈建军1陈秀娟1
1. 浙江省林业科学研究院,浙江 杭州 310023;2. 浙江省淳安县千岛湖林场,浙江 淳安 311700; 3. 浙江省淳安县新安江开发总公司,浙江 淳安 311700
Author(s):
BAI Ming-e1FANG Jian-hua2XU Gao-fu3SHEN Jian-jun1CHEN Xiu-juan1
1. Zhejiang Forestry Academy, Hangzhou 310023, China; 2. Chun’an Qiangdaohu Forest Farm of Zhejiang, Chun’an 311700, China; 3. Chun’an Xin’anjiang Development Company of Zhejiang, Chun’an 311700, China
关键词:
青钱柳光合作用日变化光合响应
Keywords:
Cyclocarya paliurus photosynthesis diurnal variation response
分类号:
S792.13
文献标志码:
A
摘要:
以一年生青钱柳(Cyclocarya paliurus)播种苗为试材,对其叶片的净光合速率(Pn)、蒸腾速率(Tr)、气孔导度(Gs)、胞间CO2浓度(Ci)等光合生理指标的日变化及光响应曲线进行测定,分析了光合参数间的相关性。结果表明:青钱柳苗Pn、Tr、Gs的日变化均为“双峰”曲线,两个峰值分别出现在9:30和13:00,Ci的日变化表现为早晚高、中午低,低谷出现在11:30;Pn与Gs呈极显著相关(P < 0.01),与Tr呈显著相关(P < 0.05),与其它参数间的相关性不显著;光补偿点为14.63 ?mol/(m2?s),光饱和点为1 200 ?mol/(m2?s),最大净光合速率为8.32 ?mol/(m2?s);影响青钱柳光合生理参数的主要环境因子为光合有效辐射和大气温度(Ta)。
Abstract:
Determinations were conducted on net photosynthetic rate(Pn), transpiration rate(Tr) stomatal conductance(Gs), intercellular CO2 concentration(Ci), and response of 1-year Cyclocarya paliurus seedlings. The result showed that diurnal variation of Pn, Tr, Gs had double peaks occurred at 9:30 and 13:00, while that of Ci topped in the morning and evening, the lowest at 11:30. Pn had extremely significant correlation with Gs (P < 0.01), significant correlation with Tr (P < 0.05). Light compensate point (LCP) was 14.63?mol/(m2?s), light saturation point (LSP) was 1 200?mol/(m2?s), maximum net photosynthetic rate (Pnmax) was 8.32 ?mol/(m2?s). The experiment demonstrated that photosynthetically available radiation (PAR) and atmospheric temperature (Ta) had effect on photosynthetic parameters of tested seedlings.

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备注/Memo

备注/Memo:
收稿日期:2015-09-23 ;修回日期:2015-10-19 基金项目:浙江省科技厅公益技术研究农业项目(2013C32087);浙江省林业科研成果推广项目(2014B09) 作者简介:柏明娥(1966-),女,浙江嘉兴人,研究员,从事资源植物开发研究。
更新日期/Last Update: 2016-02-20