Changes of Endogenous Polyamines in Leave and Buds of Dichogamous English Walnut (Juglans regia L. ) during Flower Bud Differentiation

ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (2): 363-365.

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Changes of Endogenous Polyamines in Leave and Buds of Dichogamous English Walnut (Juglans regia L. ) during Flower Bud Differentiation

Xu Jizhong; Li Xiaodong; Zhang Zhihua; Chen Haijiang;Wang Yanhui

(College of Hoticulture, Hebei Agricultural University, Baoding 071001, China)

Received:2005-03-24 Revised:2005-06-17 Online:2006-04-25 Published:2006-04-25

Abstract

Abstract: Protogynous cultivar ‘Zhonglin 5 ’ and p rotandrous cultivar ‘Liaoning 1 ’were used for studying the changes of endogenous polyamines in the leaves and mixed buds in English walnut during flower bud differentiation. The results showed that the peaks of Put and Spd contents appeared a week earlier in the protogynous cultivar‘Zhonglin 5’ leaves than those in the protandrous cultivar‘Liaoning 1’ leaves. And the peaks of Put, Spd and Spm contents appeared two weeks earlier in the p rotogynous cultivar‘Zhonglin 5’mixed buds than those in the protandrous cultivar‘Liaoning 1’mixed buds.

Key words: Walnut, Dichogamy, Polyamines

Xu Jizhong;Li Xiaodong;Zhang Zhihua;Chen Haijiang;Wang Yanhui. Changes of Endogenous Polyamines in Leave and Buds of Dichogamous English Walnut (Juglans regia L. ) during Flower Bud Differentiation[J]. ACTA HORTICULTURAE SINICA, 2006, 33(2): 363-365.

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Changes of Endogenous Polyamines in Leave and Buds of Dichogamous English Walnut (Juglans regia L. ) during Flower Bud Differentiation

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