中国南方果树2026，Vol.55Issue(1)：174-178,5.DOI:10.13938/j.issn.1007-1431.20250300
苹果树萌芽期前短时冰冻胁迫对其生长发育的影响
Effect of short-term freezing stress on growth and development of Malus pumila trees before the germination stage
摘要
Abstract
Zhaotong Red Fuji apple trees were used as the experimental material.By comparative experiment,the tolerance of apple trees to short-term low-temperature stress(-2℃ to-8℃)before the germination stage was explored,aiming to improve the tolerance of Red Fuji apple trees to the damage caused by'late spring cold snaps' through short-term freezing stress treatment.Through measuring growth indicators including the germination rate,leaf area,photosynthetic rate,leaf shape index,shoot growth rate,as well as the survival rate of both the fruit trees and their branches,the effect of low-temperature stress on apple trees was analyzed.The results showed that the treatment group got a 100％survival rate for both the trees and their shoots,while the control group achieved survival rates of 97.6％and 98.64％for the trees and shoots,respectively.The germination rate of the treatment trees was 4.16％lower than that of the control in the early stage,while the leaf growth rate was significantly superior to that of thecontrol,with the average leaf area of the treatment group increasedoy 633.84 mm2 compared with the control,the photosynthetic rate improved by 1.4 μmol·m-2·s-1,and no significant difference was observed in the leaf shape index.Taken together,the short-term(15 h)low-temperature(-2℃ to-8℃)freezing stress before the germination stage could improveo cold resistanceof the apple trees,without affecting their survival rate,and has a positive promoting effect on the growth and development of branches and leavesof trees.关键词
红富士苹果树/萌芽期前/低温胁迫/生长发育Key words
Red Fuji apple tree/pre-bud stage/freezing stress/growth and development引用本文复制引用
高文师,周鹏,周庆,张凌英,李振,马永翠,陈含,任利卫,张林生,李远波,陈吉,崔珏..苹果树萌芽期前短时冰冻胁迫对其生长发育的影响[J].中国南方果树,2026,55(1):174-178,5.基金项目
云南昭通苹果科技小院项目(JJ-HW-20240123)资助. （JJ-HW-20240123）
