Comparison on Photosynthetic Characteritics of Three Acer mono Maxim.Varieties(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:

2013年02期

Page:

57-60

Research Field:

Publishing date:

Info

Title:

Comparison on Photosynthetic Characteritics of Three Acer mono Maxim.Varieties

Author(s):

YU Yong-chang¹; ZHANG Lin²; WANG Hou-xin²; LI Cheng-xiu²; YAN Ting-mei¹; WANG Chang-xian²

1.College of Forestry，Shandong Agricultural University,Tai’an,Shandong 271000；

2.Forestry Research Institute of Mount Tai,Tai’an,Shandong 271000

Keywords:

Acer mono Maxim.; chlorophyll; photosynthetic characteristics; net photosynthetic rate

PACS:

S 687.9

DOI:

-

Abstract:

Taking ‘Taishanjingfu No.1’，‘Taishanjingfu No.2’ and ‘Taishantianwaicun No.1’ three 2-year-old Acer mono Maxim.varieties of cutting seedlings as test materials,using CIRAS-1 portable photosynthesis system，the various photosynthetic physiological parameters and their variation regularities in three Acer mono Maxim.varieties were compared and studied.The results showed that both the diurnal change of net photosynthetic rate (Pn) of three Acer mono Maxim.varieties showed a single-peak curve and the net photosynthetic rate had significant difference between three Acer mono Maxim.varieties.Light saturation point (LSP) of the three Acer mono Maxim.varieties was ‘Taishanjingfu No.1’ (1 291.67 μmol·m^-2·s^-1)>‘Taishantianwaicun No.1’ (1 257.14 μmol·m^-2·s^-1)>‘Taishanjingfu No.2’ (1 235.71 μmol·m^-2·s^-1)，the light compensation point (LCP) of them was ‘Taishantianwaicun No.1’ (105.15 μmol·m^-2·s^-1)>‘Taishanjingfu No.1’ (93.46 μmol·m^-2·s^-1)>‘Taishanjingfu No.2’ (71.50 μmol·m^-2·s^-1) and the apparent quantum yield (AQY) was ‘Taishantianwaicun No.1’ (0.0155 μmol·m^-2·s^-1)>‘Taishanjingfu No.1’ (0.0127 μmol·m^-2·s^-1)>‘Taishanjingfu No.2’ (0.0111 μmol·m^-2·s^-1).CO₂ saturation point (CSP) of the three Acer mono Maxim.varieties was ‘Taishanjingfu No.1’ (1 271.43 μmol/mol)>‘Taishantianwaicun No.1’ (1 150 μmol/mol)>‘Taishanjingfu No.2’ (1 137.5 μmol/mol),CO₂ saturation point (CCP) of them was ‘Taishanjingfu No.2’ (153.03 μmol/mol)>‘Taishantianwaicun No.1’ (149.08 μmol/mol)>‘Taishanjingfu No.1’ (129.33 μmol/mol).And the carboxylation efficiency (CE) was ‘Taishanjingfu No.2’ (0.0195)>‘Taishantianwaicun No.1’ (0.0186)>‘Taishanjingfu No.1’ (0.0169).The chlorophyll content of unit leaf mass of them was ‘Taishanjingfu No.1’>‘Taishantianwaicun No.1’> ‘Taishanjingfu No.2’．The ability of photosynthesis was ‘Taishanjingfu No.1’>‘Taishantianwaicun No.1’> ‘Taishanjingfu No.2’.

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