|Table of Contents|

Changes of Endogenous Hormone Content and Enzyme Activity in Apple Leaf Buds During Genmination

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年10
Page:
22-27
Research Field:
Publishing date:

Info

Title:
Changes of Endogenous Hormone Content and Enzyme Activity in Apple Leaf Buds During Genmination
Author(s):
LU Kaizheng1LI Xinyue1LIU Yang1QI Guohui123ZHANG Xuemei12GUO Suping12
(1.College of Forestry,Hebei Agricultural University,Baoding,Hebei 071000;2.Hebei Province Walnut Engineering Technology Research Center,Lincheng,Hebei 054300;3.National Engineering Research Center for Agriculture in Northern Mountainous Areas,Baoding,Hebei 071000)
Keywords:
appleleaf budsendogenous substanceplant hormoneenzyme activity
PACS:
-
DOI:
10.11937/bfyy.20203850
Abstract:
The leaf buds of apple variety ‘2001’ were used as test materials,the soluble protein,soluble sugar,starch,ABA,IAA,ZT,GA3,SOD,POD,CAT were tested to study nutrients,endogenous hormone content and enzyme activities during the initial germination of apple leaf buds.So as to regulate apple leaf buds germination and guide pruning.The results showed that during the germination of apple leaf buds,the starch content showed a slow decline process,the soluble sugar content showed a rise process,and the soluble protein content showed a process of the first decline and then rise.It reached 4.34,49.17,52.75 mg?g-1;the content of endogenous hormone IAA showed an increasing trend overall,the content of ABA was the opposite,and gradually decreased during leaf buds germination,and the contents of ZT and GA3 increased first and then lowering process.The IAA content reached the highest value of 101.70 ng?g-1FW on the last day within 20 days of observation,and the GA3 content reached the highest value of 22.35 ng?g-1FW on the 8th day.During leaf buds germination,SOD activity reached 35.12 U?g-1,the activities of POD and CAT reached 11.40,0.25 U?g-1?min-1 on the 20th day,respectively.

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Last Update: 2021-08-09