永春县不同海拔芦柑果实日灼发生率调查分析  

Investigation and Analysis of Fruit Sunburn Occurrence Rate of Ponkanat Different Altitudes in Yongchun County

作　　者：张宇平 Zhang Yuping(Tianma Citrus Farm,Yongchun,Fujian 362601,China)

机构地区：[1]永春县天马柑桔场,福建永春362601

出　　处：《东南园艺》2023年第1期58-61,共4页Southeast Horticulture

基　　金：泉州市科技计划项目(2019C035R)。

摘　　要：以永春县6个果园同一坡向、不同海拔的芦柑树作为研究对象,通过分析高温条件下果实日灼发生情况,发现果面温度、果实日灼率、日灼程度与海拔呈现极显著的负相关,即前三者是随着海拔的升高而降低。果实日灼率、日灼程度与果面温度呈极显著正相关,与光照强度的相关性差异并不显著,可知果面温度是影响芦柑日灼的主要因子,果面温度高则日灼发生率高,不同海拔主要是通过果面温度变化影响果实日灼率。Trees of one ponkan cultivar at the same slope and at different altitudes at six ponkan orchards in Yongchun County were used as research objects to analyze status of fruit sunburn occurrence at high temperature.The results showed that there was significantly negative correlation between altitude and factors including fruit surface temperature,fruit sunburn rate and degree.It meant that fruit surface temperature,fruit sunburn rate and degree decreased with the increase of altitude.Fruit sunburn rate and sunburn degree had significantly negative correlation with fruit surface temperature while there was no significant difference on correlation between light intensity and fruit sunburn rate and sunburn degree.Fruit surface temperature was the important factor affecting fruit sunburn of ponkan.High fruit surface temperature could result in high fruit sunburn rate.Fruit sunburn rate was mainly influenced by changes of fruit surface temperature at different altitudes.

关 键 词：芦柑 海拔 果面温度 果实日灼 

分 类 号：S666.1[农业科学—果树学]