不同修剪方式对平茬处理后越橘树体更新复壮的影响  

Effects of different pruning methods on regeneration and rejuvenation of blueberry trees after stumping treatments

作　　者：王彤 闫黎明 杨雷 孙海悦 陈丽 李亚东 WANG Tong;YAN Liming;YANG Lei;SUN Haiyue;CHEN Li;LI Yadong(College of Horticulture,Jilin Agricultural University,Engineering Center of Genetic Breeding and Innovative Utilization of Small Fruits of Jilin Province,Changchun 130118,China;Ziyue Agricultural Technology Co.,Ltd.,Wuhu Anhui 241000,China)

机构地区：[1]吉林农业大学园艺学院,吉林省小浆果遗传育种与创新利用工程中心,长春130118 [2]紫约农业科技有限公司,安徽芜湖241000

出　　处：《东北农业大学学报》2024年第6期14-24,共11页Journal of Northeast Agricultural University

基　　金：吉林省科技发展计划项目(20220508099RC);吉林省发改委项目(2023C035-4);云南省科技人才与平台计划(院士专家工作站)项目云南省李亚东专家工作站(202205AF150029)。

摘　　要：探究平茬处理后不同修剪方式对衰老越橘树体更新复壮的影响,以12年生北高丛越橘“瑞卡”为试验材料,对其采用不同修剪时间、不同修剪措施处理,探究对其生长指标、花芽形成数量及光合特性的影响。根据主成分分析法对各处理综合评价后发现,修剪方式相同时,2023年6月15日处理植株在生长及光合特性等方面的综合表现均优于7月15日处理植株;在短截处理中,各处理均未形成花芽,其余指标综合评价为轻度短截>中度短截>重度短截;在疏枝处理中,各处理综合评价表现为重度疏枝>中度疏枝>轻度疏枝;在疏枝+短截处理中,选留10~15个主枝的情况下,轻度短截综合评价得分最高,中度短截次之,重度短截最低。其中6月15日选留10~15个基生枝且剪留2/3的综合得分最高,是该试验中最适用于生产实践的处理方法。To investigate the impacts of different pruning methods on the regeneration and revitalization of aging blueberry plants after stem pruning,the'Reka',a 12-year-old northern highbush blueberry cultivar,was used as the experimental material.Various pruning timings and techniques were implemented to assess their effects on growth indicators,flower bud formation numbers and photosynthesis characteristics.Following comprehensive evaluation through principal component analysis,it was observed that when employing the same pruning method,the treatment conducted on June 15th exhibited superior overall performance in terms of growth and photosynthesis characteristics compared to the treatment performed on July 15th.In relation to short pruning treatments,no flower buds were formed across any of the treatments;however,evaluations based on other indicators indicated that light pruning yielded better results than moderate or heavy pruning.Regarding thinning treatments,heavy thinning outperformed moderate thinning which in turn surpassed light thinning according to overall evaluations.For combined thinning and short pruning treatments with selection of 10-15 main branches,light pruning achieved the highest overall evaluation score followed by moderate pruning while heavy pruning obtained the lowest score.Among all treatments considered in this experiment,those involving 10-15 basal branches with a 2/3rd rate of June 15th proved most suitable for practical application based on their highest overall evaluation score.

关 键 词：越橘 修剪 生长指标 光合特性 主成分分析 

分 类 号：S663.9[农业科学—果树学]