林业与生态科学2025，Vol.40Issue(2)：155-162,8.DOI:10.13320/j.cnki.hjfor.2025.0018
枝干轮纹病对苹果树体矿质营养的影响
Effect of branch ring rot on mineral nutrient elements of apple trees
摘要
Abstract
In order to clarify the effect of branch ring rot disease on mineral nutrients in apple trees,the contents of 11 common mineral nutrients in the leaves of healthy plants and plants with ring rot were detected by micro Kjeldahl method,flame photometer method,vanadium molybdenum yellow colorimetric method,methylimine-H acid method and atomic absorption spectrophotometry.It was found that the contents of potassium,manganese and zinc in the leaves of healthy and diseased trees were significantly different(P＜0.05).The contents of three mineral elements in branches and leaves of healthy plants and plants with different dis-ease grades were further compared,and the results showed that the higher the incidence of branch ring rot,the lower the content of potassium in branches and leaves,and the higher the content of manganese.The contents of potassium and manganese in the trunk,lateral branches,and leaves of healthy trees and diseased trees were further measured in severely diseased orchards.The contents of potassium in the trunk,lateral branches,and leaves of healthy trees were significantly higher than those of diseased trees,while the contents of manganese were significantly lower than those of diseased trees(P＜0.05).The potassium content in the trunk,branches,and leaves of the healthy tree was 15.5 times,4.5 times,and 2.4 times of the potassium content in the trunk,branches,and leaves of the diseased tree,respectively.The manganese content in the trunk,lateral branches,and leaves of the diseased tree were 4.4 times,7.0 times,and 6.7 times that of the manganese content in the trunk,branches,and leaves of the healthy tree,respectively.This study showed that branch ring rot could cause potassium deficiency and excessive accumulation of manganese content.关键词
苹果树/枝干轮纹病/矿质营养/钾元素/锰元素Key words
apple tree/branch ring rot/mineral nutrition/potassium/manganese分类
农业科技引用本文复制引用
李砚竹,李婷爱,张林尧,戴蓬博,胡同乐,曹克强..枝干轮纹病对苹果树体矿质营养的影响[J].林业与生态科学,2025,40(2):155-162,8.基金项目
国家现代农业产业技术体系建设专项(CARS—27) （CARS—27）
河北省自然科学青年基金(C2022204186). （C2022204186）
