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ACTA HORTICULTURAE SINICA ›› 2008, Vol. 35 ›› Issue (9): 1255-1260.

• 果树 • Previous Articles     Next Articles

Study on the Influence of Three Cultivation Patterns on Photosynthetics Characteristic of Blueberry

Chen Wei1,2, MA Huai-yu3, Li Ya-dong1*, Zhang Zhi-dong1, Liu hai-guang1, and Wu lin1   

  1. (1Department of Horticutlure, Jilin Agricultural Unviersity, Changchun 130118, China; 2College of Biology and Environment Engineering, Shenyang University, Shenyang 110044, China; 3Department of Horticulture, Shenyang Agricultural University, Shenyang 110161, China)
  • Received:2008-05-12 Revised:2008-08-04 Online:2008-09-25 Published:2008-09-25
  • Contact: Li Ya-dong

Abstract:

The influences of three culturing modes (open field, green house, plastic house) on photosynthetic parameters of blueberry 'Bluecrop' were compared , including net photosynthetic rate (Pn), stomatal conductivity (Gs), intercellular CO2 concentration (Ci), etc. The results showed that 'Bluecrop' Pn day curve was two-peak type, photosynthetic midday drop of 'Bluecrop' was presented under three cultivation patterns. The minimum values of Gs under three culturing patterns were appeared at 14 p.m. and the maximum values of those were at different times, open field's were at 8 a.m. and 6 p.m., green house and plastic house's were all at 10 a.m. and 4 p.m. Ci of three culturing patterns was decreased from 6 a.m. till 10 a.m. and kept at a low level from 10 a.m. to 4 p.m., and then Ci started to increase. From those we concluded that the decline of Pn from 10 a.m. to 2 p.m. was contributed by stomatal-limitation factor, while there were non-stomatal-limitation factors about Pn decline at other time.

Key words: blueberry, culturing pattern, photosynthetic characteristic

CLC Number: