Tree growth characteristics and flower bud differentiation of sweet cherry (Prunus avium L.) under different climate conditions in China

B. Li, Z. Xie, A. Zhang, W. Xu, C. Zhang, Q. Liu, C. Liu and S. Wang
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B. Li: Department of Plant Science, Faculty of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China P. R.
Z. Xie: Department of Plant Science, Faculty of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China P. R.
A. Zhang: Shandong Institute of Pomology, Taian, China P. R.
W. Xu: Department of Plant Science, Faculty of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China P. R.
C. Zhang: Department of Plant Science, Faculty of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China P. R.
Q. Liu: Shandong Institute of Pomology, Taian, China P. R.
C. Liu: Faculty of Horticulture, Qingdao Agriculture University, Qingdao, China P. R.
S. Wang: Department of Plant Science, Faculty of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China P. R.

Horticultural Science, 2010, vol. 37, issue 1, 6-13

Abstract: The phenological stages, flower characteristics, shoot growth and flower bud differentiation of sweet cherries, cv. Hongdeng and Van, were investigated in different climatic zones in China, subtropical monsoon climatic zone (Shanghai, 31°14'N, 121°29'E) and temperate climatic zone (Qingdao, 37°09'N, 121°20'E). Sweet cherry trees grown in subtropical monsoon climatic zone had earlier phenological stage and longer blooming duration than those grown in temperate climatic zone. Fruit growth periods of Hongdeng and Van in Qingdao were 38 days and 51 days, respectively, but only 29 days and 45 days in Shanghai. Both cultivars showed more abnormal flowers under subtropical monsoon climate. The percentage of fruit set under open pollination in Hongdeng and Van were 31% and 24% in Qingdao, respectively, but only 0.4% and 3.2% in Shanghai. The trees grew more vigorous in Shanghai; flower bud differentiation was delayed by high temperature and superabundant rainfall in subtropical monsoon climate zone and more easily affected by the overlap of current shoot growth.

Keywords: sweet cherry; climate; phenological stage; fruit set; flower characteristics; shoot growth; flower bud differentiation (search for similar items in EconPapers)
Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlhor:v:37:y:2010:i:1:id:36-2009-hortsci

DOI: 10.17221/36/2009-HORTSCI

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