[1]李美美,赵建建,张玲,等. 重回缩与拉枝对成龄‘绿岭’核桃净光合速率和叶绿素荧光参数的影响[J].西北林学院学报,2014,29(05):42-46.[doi:doi:10.3969/j.issn.1001-7461.2014.05.08]
　LI Mei-mei,ZHAO Jian-jian,ZHANG Ling,et al. Effects of Heavy Cutting-back and Bending Branch on Net Photosynthetic Rate and Chlorophyll Flourescence Parameters of Adult Walnut Cultivar ‘Lvling’[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2014,29(05):42-46.[doi:doi:10.3969/j.issn.1001-7461.2014.05.08]
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 重回缩与拉枝对成龄‘绿岭’核桃净光合速率和叶绿素荧光参数的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第29卷
期数:
2014年05期
页码:
42-46
栏目:
出版日期:
2014-09-30

文章信息/Info

Title:
 Effects of Heavy Cutting-back and Bending Branch on Net Photosynthetic Rate and Chlorophyll Flourescence Parameters of Adult Walnut Cultivar ‘Lvling’
文章编号:
1001-7461(2014)05-0042-05
作者:
 李美美1; 2; 赵建建1; 2; 张玲1; 2; 李保国1; 2*; 陈利英2
 (1.河北农业大学 林学院，河北 保定 071000；2.河北省核桃工程技术研究中心，河北 临城 053400)
Author(s):
 LI Mei-mei1; 2;  ZHAO Jian-jian1; 2;  ZHANG Ling1; 2;  LI Bao-guo1; 2*;  CHEN Li-ying2
 (1. College of Forestry, Agricultural University of Hebei. Baoding, Hebei 071000, China; 2. Research Center for Walnut Engineering Technology of Hebei, Lincheng, Hebei 054300, China)
关键词:
 ; 重回缩; 拉枝; 绿岭核桃; 净光合速率; 叶绿素荧光参数
Keywords:
 ; heavy head-cutting back;  bending branch;  ‘Lvling’walnut ; net photosynthetic rate;  chlorophyll fluorescence parameter
分类号:
S792.130.1
DOI:
doi:10.3969/j.issn.1001-7461.2014.05.08
文献标志码:
A
摘要:
 为确立早实核桃成龄树的适宜修剪方法，以10年生早实核桃‘绿岭’为试验材料，研究重回缩、拉枝、既重回缩又拉枝（常规修剪）和放任生长4种不同修剪方式的核桃树冠中层叶片净光合速率和叶绿素荧光参数。结果表明：重回缩、拉枝、既重回缩又拉枝（常规修剪）和放任生长4种修剪方式的树冠内膛最大净光合速率分别为6.74、7.66、9.27 μmol·m-2·s-1和4.82 μmol·m-2·s-1，常规修剪（既重回缩又拉枝）处理的最大；4种修剪方式在7:00时的Fv/Fm值分别为0.86、0.863、0.87和0.848，除重回缩处理在15:00达到低谷外，其他3种修剪方式均在13:00达到低谷，且最低值分别为0.843、0.842、0.837和0.846，下降幅度从高到低依次为常规修剪（既重回缩又拉枝）>拉枝>重回缩>放任生长；4种修剪方式一日中初始荧光Fo的平均值分别为186.87、184.52、201.83和183.64，常规修剪（既重回缩又拉枝）处理的最大；4种修剪方式在7:00时的ETR值分别为3.08、3.33、3.28和3.52，到11:00时分别达到了7.79、8.10、8.17和7.66,4种修剪方式的上升幅度从高到低依次为常规修剪（既重回缩又拉枝）>拉枝>重回缩>放任生长。
Abstract:
 In order to determine an appropriate pruning method of adult precocious walnut trees, net photosynthetic rate and chlorophyll flourescence parameters of four pruning methods were studied in 2013, such as heavy head-cutting back (HHB), bending branch (BB), common pruning (CP)-combination of heavy head-cutting back with bending branch, and non-pruning (NP). The results showed that the highest net photosynthetic rates in inner crown for four pruning methods mentioned above were 6.74, 7.66, 9.27 μmol·m-2·s-1and 4.82 μmol·m-2·s-1, respectively. The values of Fv/Fm in the morning (7:00) were 0.86, 0.863, 0.87, and 0.848, respectively. The lowest value of Fv/Fm for HHB appeared at 15:00, and at 13:00 for other three methods, namely, 0.843, 0.842, 0.837, and 0.846, respectively, indicating the decrease amplitude from high to low was CP, BB, HHB, and NP. The average values of Fo in a day for four pruning treatments were 186.87, 184.52, 201.83, and 183.64, respectively，demonstrating the highest value was CP. The ETR values of the four pruning treatments were 3.08, 3.33, 3.28, and 3.52, respectively at 8:00, and 7.79, 8.10, 8.17 and 7.66 at 11:00.

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备注/Memo

备注/Memo:
 收稿日期：2014-02-17修回日期：2014-03-14
基金项目：国家级林业公益性行业科研专项（201004093）；河北省科技支撑计划项目（11230115D）。
作者简介：李美美，女，在读硕士，研究方向：经济林栽培生理。E-mail：824326077@qq.com
*通信作者：李保国，男，教授，博士生导师，研究方向：经济林栽培生理、山区开发技术研究及经济林栽培。E-mail：lbg888@163.com
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