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Role of ethylene in apical dominance of pea plants

Li Chunjian

Department of Plant Nutrition,China Agricultural University.Beijing 100094

Abstract

The application of synthetic cytokinin BAP and CPPU to the second node of pea plants (Pisum sativum L.) stimulated the growth of lateral buds, and a concomitant increase of ethylene production. Decapitation or treatment with AVG also induced growth of the lateral buds, but ethylene production was even less than the control. The number, length and weight of lateral buds induced by treatments with CPPU, BAP and AVG were positively correlated to the increase of the concentration of endogenous IAA in the treated tissues. The results demonstrated that ethylene was not directly involved in apical dominance.

Key words: Pea;Ethylene;Apical dominance;Cytokinin;AVG

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Citing This Article：

Li Chunjian. Role of ethylene in apical dominance of pea plants. Acta Physiol Sin 1997; 49 (3): (in Chinese with English abstract).