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浙江大学学报（农业与生命科学版）
  2012, Vol. 38 Issue (4): 413-420    DOI: 10.3785/j.issn.1008-9209.2012.04.009
Biological sciences & biotechnology     
Leaf photosynthetic characteristics of Corylus heterophylla and hybrid hazel (Corylus heterophylla ×Corylus avellana)
LIU Jianfeng, CHENG Yunqing, LIU Qiang, WANG Zhanwu, YAN Kun
College of Life Sciences, Jilin Normal University, Siping, Jilin 136000, China
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Abstract  LI-6400/XT photosynthesis system was used to measure leaf photosynthetic characteristics of two Corylus heterophylla germplasms (PZ1 and PZ2) and three Corylus heterophylla ×Corylus avellana hybrid hazelnut cultivars (PDH, DW and YZ). The results showed that light saturation points of five hazelnut germplasms were from 680 to 930 μmol·m-2·s-1, and their light compensation points  were less than 50 μmol·m-2·s-1. Their maximum net photosynthetic rates  were  from 8 to 17 μmol·m-2·s-1, and their apparent quantum efficiencies were from 003 to 004. There were two peaks in photosynthesis changing curves of five hazelnut germplasms, and the peak values occurred at 8:00 and 17:00 o’clock, indicating that it was suitable for hazelnut to culture in weak illumination environment. There were differences in photosynthetic capability for the five hazelnut germplasms  with the order as follows: PDH > DW > PZ1 > YZ > PZ2. CO2 compensation point, CO2 saturation points, maximum RuBP regeneration rates  and carboxylation efficiency of five hazelnut germplasms were from 45 to 70 μmol·m-2·s-1, 880 to 1 350 μmol·m-2·s-1, 13 to 34 μmol·m-2·s-1 and from 0.03 to 0.05, respectively. The results above provide scientific base for hazelnut culture in Northeast China region.

Published: 25 July 2012
CLC:  Q 945.11  
  S 718.43  
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LIU Jianfeng
CHENG Yunqing
LIU Qiang
WANG Zhanwu
YAN Kun
Cite this article:

LIU Jianfeng, CHENG Yunqing, LIU Qiang, WANG Zhanwu, YAN Kun. Leaf photosynthetic characteristics of Corylus heterophylla and hybrid hazel (Corylus heterophylla ×Corylus avellana). , 2012, 38(4): 413-420.

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http://www.zjujournals.com/agr/10.3785/j.issn.1008-9209.2012.04.009     OR     http://www.zjujournals.com/agr/Y2012/V38/I4/413


平榛与平欧杂交榛叶片光合特征

用LI-6400光合作用测定系统测量2个平榛种质（PZ1和PZ2）、3个平欧杂交榛品种(PDH、DW和YZ)的叶片光合特征。结果表明：5个榛子种质光饱和点为680～930 μmol·m-2·s-1，光补偿点均小于50 μmol·m-2·s-1，光饱和光合速率为8～17 μmol·m-2·s-1，表观量子效率约为0.03～0.04；5个榛子种质的光合效率日变化曲线均呈双峰型，峰值分别出现于8:00和17:00时，这表明榛子种质较适应弱光条件下的栽培；不同种质间的光合效率存在一定的差异，光合效率的大小顺序大致为：PDH >DW >PZ1 >YZ > PZ2；榛子CO2补偿点为45～70 μmol·m-2·s-1，CO2饱和点为880～1 350 μmol·m-2·s-1，RuBP（1,5-二磷酸核酮糖）最大再生速率为13～34 μmol·m-2·s-1，羧化效率在003～005之间。本研究为东北榛子的栽培提供了科学依据。
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