广西早熟荔枝果实热害调查及其成因分析  

Investigation and Analysis of Impacts of High Temperature on Fruit of Early Maturing Lychee(Litchi chinensis) in Guangxi Autonomous Region

作　　者：谭宗琨[1] 韦饶诒[2] 丘泗杰[2] 

机构地区：[1]广西区气象减灾研究所,南宁530022 [2]广西区科技厅

出　　处：《中国农业气象》2006年第4期349-353,共5页Chinese Journal of Agrometeorology

基　　金：国家863计划(2001AA115360);桂科攻项目(01330021032201720424007-3)

摘　　要：通过对2005年广西灵山早熟荔枝品种“三月红”遭受高温热害的调查及对果实各发育阶段气象条件的分析,结果发现:当年果实进入假种皮快速生长阶段后,日最高气温明显偏高,日生长温度累积值以及日平均温度≥0℃积温均高于多年平均值,再加上秋梢抽生至开花期降雨持续偏少,水分亏缺量大,造成了当年荔枝产量下降,品质受损。但调查显示,不同树龄,不同地段果实受害率不同,总体上平地比坡地、16龄树比6龄树受害较轻。The investigation of impacts of high temperature tress on fruit yields and quality of early maturing lychee （Litchi chinensis） of variety Sanyuehong in 2005 in Lingshan County of Guangxi Autonomous Region was conducted and the meteorological conditions during the different growing periods of lychee were analyzed. The results showed that the yield and quality of lychee decreased in 2005 due to the obvious higher maximum daily average temperature during the rapid aril growth and mature periods （stage 11 b） and less precipitation from the autumn shoots growth to the anthesis. The accumulated daily growing temperature and accumulated daily average temperature over 0℃ were higher than the long year average values. However, the fruit fall rates were different from the growing areas and the age of trees. Generally fruit fall rate was lower in the plain area and by the 16 years old trees than in the hill slope land and by the 6 years old trees.

关 键 词：荔枝 高温 干旱 胁迫 果实 

分 类 号：S428[农业科学—植物保护]