华北农学报Issue(z1)：71-76,6.DOI:10.7668/hbnxb.2014.S1.016
贮藏时间对干热处理后带菌黄瓜种子和病原菌的影响
Effects of Storage Time on Dry Heat Treated Infected Cucumber Seeds and Pathogens
摘要
Abstract
In order to explore the effect of storage time on germination rate of infected seeds treated with dry heat and the activity of pathogenic fungi on infected seeds ,and figure out the best condition for storage .In this paper ,we used three different infected cucumber seeds as materials .The seeds were storing in 4 ℃for 1,2,3,6,9 months re-spectively after treated with dry heat .The seed was evaluated by determining seed germination rate ,and the pathogenic activities in the seeds were also evaluated by tablet moisturizing culture method as well as double fluorescence stai -ning.The results indicated that the seed germination rate and the vigor of pathogenic fungi on infected seeds were re -duced with the extending of storage time after stored 1,2,3,6,9 months respectively .Seed germination rate was main-tain above 88%after 3 months storage and about 80%after 6 months storage when the infected seeds treated 40,60 min under 70℃respectively .However ,seed germination rate was below 75%after 3 months storage when the infected seeds treated 90 min under 70℃.There was no pathogenic fungi detected and the mortality of the spores on the sur -face or internal of the infected seed treated with dry heat after stored 3 months.The experiment suggested that the seeds germination rate and the vigor of pathogenic fungi on infected seeds were decreased after storing the dry heat treated infected seeds .When the infected seeds treated 40,60 min under 70 ℃ seeds,germination rate were above 90%and the pathogen had lost its vitality .Therefore these can be used as treatment condition before seed storage .关键词
贮藏时间/干热处理/带菌种子/发芽率/病原菌活力Key words
Storage time/Dry heat treatment/Infected seeds/Germination rate/Pathogenic vitality分类
农业科技引用本文复制引用
孟姗姗,韩之琪,谢学文,柴阿丽,石延霞,李宝聚..贮藏时间对干热处理后带菌黄瓜种子和病原菌的影响[J].华北农学报,2014,(z1):71-76,6.基金项目
“十二五”国家科技支撑计划课题项目（2012BAD19B06）；现代农业产业技术体系建设专项资金项目（CARS-25）；农业部园艺作物生物学与种质创制综合性重点实验室项目 （）
