Effects of Partial Rootzones Irrigation on Endogenous Hormones and Growthof Apple Branches and Leaves

ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (5): 1039-1041.

• 研究报告 • Previous Articles Next Articles

Effects of Partial Rootzones Irrigation on Endogenous Hormones and Growthof Apple Branches and Leaves

Zou Yangjun¹;Wei Qinping^2*;Li Jiarui¹;Wang Xiaowei²

( 1College of Horticulture, N orthwest A & F University, Yangling, Shaanx i 712100, China; 2 Institute of Forestry and Pom ology,B eijing Academ y of Agriculture and Forestry Sciences, B eijing 100093, China )

Received:2006-01-24 Revised:2006-04-17 Online:2006-10-25 Published:2006-10-25

Abstract

Abstract: Two-year-old split-root potted apple trees (Royal Gala) were used for studying the effects of partial rootzone alternative irrigation on the content of endogenous hormones in leaves and growth of shoots and leaves. There are five experiment group s of irrigation: complete irrigated part, 3 /4, 2 /4, 1 /4 and no irrigation part. The results showed that the content ofABA in leaves increased but contents of IAA, GA₃ and ZR in leaveswere decreased, the growth of shoots and leaves were markedly inhibited under the treatments of 1 /4 and 2 /4 irrigation groups. We supposed the reasons for the growth of shoots and leaves inhibited markedly were the common effects of ABA increasing, CTK decreasing in roots synthesizing and IAA and GA₃ slowing
down in shoots and young leaves synthesizing.

Key words: Apple, Partial rootzone irrigation, Endogenous hormones, Growth

CLC Number:

Zou Yangjun;Wei Qinping;Li Jiarui;Wang Xiaowei. Effects of Partial Rootzones Irrigation on Endogenous Hormones and Growthof Apple Branches and Leaves[J]. ACTA HORTICULTURAE SINICA, 2006, 33(5): 1039-1041.

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Effects of Partial Rootzones Irrigation on Endogenous Hormones and Growthof Apple Branches and Leaves

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