| 运城市主要果树花期冻害指标研究 |
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| 引用本文： | 袁嘉玮,梁宇卿,梁哲军,张健,王璐.运城市主要果树花期冻害指标研究[J].干旱区资源与环境,2021,35(2):143-148. |
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| 作者姓名： | 袁嘉玮 梁宇卿 梁哲军 张健 王璐 |
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| 作者单位： | 山西农业大学棉花研究所,运城044000;北京农学院,北京100096 |
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| 基金项目： | 山西省农业科学院科技创新工程项目(YGC2019TD08);山西省重点研发计划重点项目(201903D211001-2)资助。 |
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| 摘 要： | 运城市主要果树近年来均有不同程度花期冻害发生,为减少冻害损失,制定更具生产指导意义的农业气象灾害指标以及农业气象灾害标准,文中以运城市主要种植果树苹果、梨、桃、杏花器官为研究对象,利用智能人工气候箱模拟自然降温进行研究.结果表明:运城市苹果花期、梨花期、杏花期遭受冻害临界温度均为-2℃,桃花期遭受冻害临界温度为-3℃;...
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| 关 键 词： | 果树 花期 冻害指标 运城市 |
Study on freezing indexes of main fruit trees at flowering stage in Yuncheng |
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| YUAN Jiawei,LIANG Yuqing,LIANG Zhejun,ZHANG Jian,WANG Lu.Study on freezing indexes of main fruit trees at flowering stage in Yuncheng[J].Journal of Arid Land Resources and Environment,2021,35(2):143-148. |
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| Authors: | YUAN Jiawei LIANG Yuqing LIANG Zhejun ZHANG Jian WANG Lu |
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| Institution: | (Cotton Research Institute,Shanxi Agriculture University,Yuncheng 044000,China;Beijing University of Agriculture,Beijing 100096,China) |
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| Abstract: | In recent years,the main fruit trees in Yuncheng suffered different degrees of freezing damage.In order to reduce the loss of freezing damage,it is necessary to formulate more representative agricultural meteorological disaster indicators and agricultural meteorological disaster standards.In this research,apples,pears,peaches,and apricots growing in Yuncheng were taken as test materials,artificial climate boxes were used to simulate the freezing cooling process to study the freezing hazard indicators.The results showed that the critical temperature that apple,pear and apricot flowering period suffered from freezing damage in Yuncheng was-2℃,and the critical temperature of freezing damage during peach blossom period was-3℃.The critical temperature of severe freezing damage in apple blossom stage and apricot blossom stage was-4℃,while that in pear blossom stage was-3℃,and that in peach blossom stage was-6℃.The degree of freezing damage increased with the decrease of temperature and the increase of duration,and the lowest temperature and low temperature duration were the main indexes of freezing damage in flowering period of apple,pear and apricot.In this way,the freezing damage indexes of apples,pears,peaches and apricots in Yuncheng city include:the grades of freezing damage in flowering stage,extreme minimum temperature,duration of low temperature,and freezing performance,and they were verified by actual disasters. |
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| Keywords: | fruit tree flowering stage freezing injury index Yuncheng |
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