枇杷低温冻害等级指标研究  

Study on grade index of low-temperature freezing injury of Loquat

作　　者：杨凯[1] 陈惠[1] 林晶[1] 陈涛 

机构地区：[1]福建省气象科学研究所,350001 [2]福建省福清市气象局

出　　处：《福建农业科技》2015年第5期27-30,共4页Fujian Agricultural Science and Technology

基　　金：福建省科技厅农业科技重点项目(2009N0030);福建省科技厅农业科技重点项目(2013N0012)

摘　　要：基于枇杷山坡地梯度观测资料和幼果低温箱试验分析,对枇杷低温冻害等级指标进行初步研究。建立了基于日最低气温的枇杷低温冻害等级指标,轻度冻害:-2.5℃<Tmin≤-1.0℃;中度冻害:-3.5℃<Tmin≤-2.5℃;重度冻害:-4.5℃<Tmin≤-3.5℃;极重冻害:Tmin≤-4.5℃。Abstract： Based on the data of gradient observation in hillside land of loquat and analysis of an experiment on young fruits harmed in low-temperature box, the grade index of freezing injury of loquat was preliminarily studied. The grade index of freezing injury of loquat was established on the basis of the daily extremely low temperature, that is ： the mild freezing injury was -2.5℃〈Tmin≤-1.0℃ ; the moderate freezing injury was -3.5℃〈Tmin≤-2.5℃ ; the Severe freezing injury was -4.5℃〈Tmin≤-3.5℃ ; the serious freezing injury was Tmin≤-4.5℃

关 键 词：枇杷 冻害 等级指标 日最低气温 

分 类 号：S667.3[农业科学—果树学] S426[农业科学—园艺学]