Effects of Low Temperature Stress and ABA on Flower Formation and Endogenous Hormone of Litchi

ACTA HORTICULTURAE SINICA ›› 2002, Vol. 29 ›› Issue (6): 577-578.

• 研究报告 • Previous Articles Next Articles

Effects of Low Temperature Stress and ABA on Flower Formation and Endogenous Hormone of Litchi

Zhou Biyan, Li Yubin, Chen Jiezhong, Ji Zuoliang, and Hu Zhiqun

(College of Horticulture , South China Agricultural University , Guangzhou 510642 , China)

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

Abstract

Abstract: Litchi trees were treated at low temperature in controlled growing chamber for imitating cold wave. The results showed that abscisic acid (ABA) and indole-3-acetic acid ( IAA) contents of litchi leaves increased , transpiration rate (Tr) decreased and leaf water potential increased during the low temperature treatment . Exogenous ABA treatment raised ABA levels and reduced IAA levels of litchi leaves in the low temperature. Hence the value of
ABA/ IAA was higher than that of control . Also , Tr decreased and leaf water potential increased. Trees sprayed with ABA remained a relatively high flower formation rate after being treated at low temperature.

Key words: Litchi, Low temperature, ABA, Hormone, Water

CLC Number:

S 667. 1

Zhou Biyan;Li Yubin;Chen Jiezhong;Ji Zuoliang;and Hu Zhiqun. Effects of Low Temperature Stress and ABA on Flower Formation and Endogenous Hormone of Litchi[J]. ACTA HORTICULTURAE SINICA, 2002, 29(6): 577-578.

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Effects of Low Temperature Stress and ABA on Flower Formation and Endogenous Hormone of Litchi

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