γ-射线对荔枝蒂蛀虫幼虫检疫处理的研究  

STUDIES ON GAMMA IRRADIATION OF LITCHI STEMEND BORER LARVAE AS QUARANTINE TREATMENT

作　　者：胡美英[1,2,3] 姚振威[1,2,3] 侯任昭[1,2,3] 侯任环[1,2,3] 李晓东[1,2,3] 罗雪梅[1,2,3] 翁群芳[1,2,3] 黄旭明[1,2,3] 刘秀琼[1,2,3] 

机构地区：[1]华南农业大学资源环境学院 [2]仲恺农业技术学院植保系 [3]华南农业大学生物技术学院

出　　处：《仲恺农业技术学院学报》1998年第2期56-61,共6页Journal of Zhongkai Agrotechnical College

摘　　要：应用０．１０～０．４０ｋＧｙ的６０Ｃｏγ－射线对新鲜荔枝果实中的蒂蛀虫（ＣｏｎｏｐｏｍｏｒｐｈａｓｉｎｅｎｓｉｓＢｒａｄｌｅｙ）幼虫进行辐射检疫处理研究判断辐照检疫处理的有效性是基于处理幼虫不能羽化为成虫作为标准概率分析结果表明，致使荔枝蒂蛀虫幼虫９９５％死亡的辐照剂量是０２５４ｋＧｙ，９５％置信区间是０２２０－０２８９ｋＧｙ，辐照处理与低温（７℃）冷藏相结合，可提高荔枝蒂蛀虫的死亡率．对荔枝果实的营养成分分析结果表明，经０２０、０２５、０３０ｋＧｙ辐照处理与对照组之间，其还原糖和维生素Ｃ含量无明显差异，而总酸度含量、贮藏期间坏果率则处理组比对照低６０Ｃｏγ－射线既能杀死荔枝蒂蛀虫幼虫，达到检疫处理的目的。Litchi stem-end borer Conopomorpha sinessis Bardley, larvae in litchi fruits were exposed to 60 Co gamma irradiation at doses ranging from 0.10～0.40 kGy as a quarantine treatment. Criterion of effectiveness of the irradiation dose was based on preventing adults emerging from treated fruits infested with the borer larvae. Probity analysis showed that the irradiation dose confidence limits. The mortality of litchi stem-end borer larvae increased when irradiation treatment coupled with extended cool storage (7℃). The results of quality analysis indicated that with irradiation at 0.20, 0.25 and 0.30 kGy for litchi fruit, as compared with the control, reducing sugar and vitamin C contents were not significantly different while total acid content and rotten fruit rate was reduced by gamma irradiation treatment. It is certain that 60 Co gamma irradiation is a potential quarantine treatment to disinfest fruit of litchi stem-end borer larvae, and it seems to have some help to keep the quality better.

关 键 词：荔枝蒂蛀虫 ^60CO 检疫处理 幼虫辐照 

分 类 号：S436.67[农业科学—农业昆虫与害虫防治]