干旱地区农业研究Issue(5)：46-51,6.
几种甘蓝型油菜幼苗抗旱性特征的比较研究
Comparative study on drought resistance characteristic of Brassica napus L .seedling
摘要
Abstract
An experiment was conducted to investigate drought index,root length,seeding height and the ratio of root to shoot of 6 rapeseed cultivars (EV1,EV2,EV3,EV4,EV5,EV6)with different drought resistance under differ-ent concentrations of PEG-6000 osmotic solution simulated drought in field .The result showed that drought index of EV2 was the highest,while EV6 was the lowest under water stress .There were significant differences among cultivars un-der different concentration of PEG,that root length,with seeding height and ratio of root to shoot of EV1,EV2 and EV3 being larger than those of EV5 and EV6 .Canopy cover area of EV2 was the larger as compared with other cultivars dur-ing five-leaf stage .Path analysis of drought resistance index showed that direct path coefficient of canopy cover area to drought resistance was as high as 0 .5975 .Canopy cover area reflected strength of vigor during early stage at early stage when the drought resistance index of cultivars and drought resistance being stronge .关键词
甘蓝型油菜/幼苗/抗旱性Key words
Brassica napus L ./seedling/drought resistance分类
农业科技引用本文复制引用
关周博,张文学,李殿荣,田建华,胡银岗,李少钦,董育红,郑磊,韦世豪,塔娜,王学芳..几种甘蓝型油菜幼苗抗旱性特征的比较研究[J].干旱地区农业研究,2014,(5):46-51,6.基金项目
旱区作物逆境生物学国家重点实验室开放课题基金（CSBAA2013013）；科学家岗位油菜现代产业技术体系建设（CARS-13）；国家863计划（2011AA10A104）；陕西省科技统筹创新工程计划 （）
