花生学报Issue(3)：13-18,6.
花生种质资源出苗期耐低温性鉴定方法及应用
Identification Method of Low Temperature Tolerance on Peanut Germplasm Resourcesin Emergence Stage and Its Application
摘要
Abstract
157 peanut germplasms were sown in the field in two different sowing time, including low-temperature time and normal-temperature time respectively, so as to investigate their emergence rate, average emergence rate and relative emergence rate after sowed 12 days, 17 days and 22 days.The re-sult showed that remarkable difference was existed among 157 peanut germplasms with tolerance to low temperature, and seeding emergence time delayed 5 days when peanut were sowed in low-tempera-ture time.The analysis of statistics showed that 17 days after sowing was the most suitable time to in-vestigate seedling emergence rate, and 80% of relative emergence rate could be the criteria to identify the tolerance to low temperature.And the preliminary method for screening peanut low temperature tolerance was constructed.In this study, 12 peanut varieties with high tolerance to low temperature were acquired, which were important material base for subsequent study and practical application.关键词
花生/耐低温性/出苗率/分期播种Key words
peanut/tolerance to low temperature/seedling emergence rate/seed sowing in differ-ent time分类
农业科技引用本文复制引用
吕建伟,马天进,李正强,陈锋,姜慧芳..花生种质资源出苗期耐低温性鉴定方法及应用[J].花生学报,2014,(3):13-18,6.基金项目
国家现代农业产业体系建设项目(CARS-14) （CARS-14）
贵州省科学技术基金(黔科合 J 字[2012]226) （黔科合 J 字[2012]226）
农业部油料作物生物学与遗传育种重点实验室开放课题(2012-7) （2012-7）
贵州省农业攻关项目(黔科合 NY 字[2009]3004) （黔科合 NY 字[2009]3004）
贵州省农科院研究生创新基金(黔农科合2012002) （黔农科合2012002）
