塔里木大学学报2025，Vol.37Issue(3)：37-43,7.DOI:10.3639/j.issn.1009-0568.2025.03.005
皮山农场枣树冻害原因及冻后恢复情况调查
Investigation on the causes of freezing injury and recovery of jujube trees after freezing in Pishan Farm
摘要
Abstract
The temperature,winter irrigation,spring irrigation and germination of Huizao jujube in Pishan Farm and the appropriate pruning time of jujube trees after freezing injury were investigated,which provided a theoretical basis for exploring the influencing factors of jujube trees after freezing injury and the remediation of jujube trees after freezing injury.On April 22,2023(treatment A:early pruning)and May 8,2023(treatment B:late pruning),the frozen jujube trees were heavy cut to explore the freezing damage of jujube orchards in Pishan Farm of Hotan prefecture and the effects of different pruning time on the growth,fruit quality and yield of jujube trees after freezing.The results showed that the extreme low temperature in winter reached-25℃in Pishan Farm,and the duration of low temperature reached 25 days.The proportion of non-germination and low germination rate of Huizao jujube reached 81.58%,which was 4.43 times that of complete germination area.After winter irrigation and spring irrigation,the area of germinated jujube trees increased by 10%compared with that of unirrigated jujube orchards.Under different pruning time treatments after freezing,the average fruit number of early pruning jujube trees was 3.64 times that of late pruning.The length of jujube hanging and the length of secondary branches were 6.35 cm and 8.26 cm higher than those of late pruning,respectively.The single fruit weight,longitudinal diameter and transverse diameter of late pruning jujube trees were 6.77 g,0.61 cm and 0.49 cm higher than those of late pruning,and the vitamin C content was 75.35 mg/100 g higher than that of late pruning,The yield per plant of early pruning jujube trees was 4.21 times that of late pruning jujube trees,and the yield per mu was 5.39 times that of late pruning.In summary,the long duration of extreme low temperature and low irrigation amount are the main factors of freezing injury in jujube orchard of Pishan Farm;after freezing,the growth and development,fruit quality and yield of early pruning jujube trees were significantly higher than those of late pruning jujube trees.关键词
冻害/生长发育/果实品质/产量Key words
freezing injury/growth and development/fruit quality/production分类
农业科技引用本文复制引用
余丽萍,唐志华,王振磊,张川疆,林敏娟..皮山农场枣树冻害原因及冻后恢复情况调查[J].塔里木大学学报,2025,37(3):37-43,7.基金项目
新疆生产建设兵团重点领域科技攻关计划项目(2023AB004-04) （2023AB004-04）
