Photosynthesis of Different Pear (Pyrus L.) Cultivar-rootstock Combinations

ACTA HORTICULTURAE SINICA ›› 2002, Vol. 29 ›› Issue (6): 569-570.

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Photosynthesis of Different Pear (Pyrus L.) Cultivar-rootstock Combinations

Jiang Weibing, Yu Kaijin, Gao Guanglin, and Ma Kai

(College of Horticulture , Nanjing Agricultural University , Nanjing 210095 , China)

Received:1900-01-01 Revised:1900-01-01 Online:2002-12-25 Published:2002-12-25

Abstract

Abstract: In this paper a comparison of the photosynthetic characteristics among pear rootstock Pyrus betulae folia Bunge and P. calleryana Dcen. , four combinations of two pear varieties Hosui and Niitaka on the above two rootstocks is presented. Results showed that the value of net photosynthetic rate ( Pn) , apparent quantum yield (Φi) , carboxylation efficiency (CE) , and water use efficiency (WUE) of P. calleryana Dcen. , Hosui or Niitaka on P. calleryana Dcen. , Niitaka on either P. calleryana Dcen. or P. betulaefolia Bunge was all higher than that of the above four physiological indices of P. betulaefolia Bunge , Hosui or Niitaka on P. betulaefolia Bunge , Hosui on either P. calleryana Dcen. or P. betulaefolia Bunge respectively.

Key words: Pyrus L., Photosynthetic characteristic, Rootstock, Variety

CLC Number:

S 661. 2

Jiang Weibing;Yu Kaijin;Gao Guanglin;and Ma Kai. Photosynthesis of Different Pear (Pyrus L.) Cultivar-rootstock Combinations[J]. ACTA HORTICULTURAE SINICA, 2002, 29(6): 569-570.

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Photosynthesis of Different Pear (Pyrus L.) Cultivar-rootstock Combinations

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