干旱地区农业研究2013，Vol.31Issue(3)：145-149,5.
模拟干旱胁迫下甘蓝型油菜幼苗生长与早期活力的关系研究
Relationship between seedling growth and early vigor of Brassica napus L.under simulated drought stress
摘要
Abstract
This study aimed to investigate the correlation between early vigor of Brassica and its seedlings growth under drought stress.Six rapeseed of different early vigor were treated with PEG-6000 osmotic solution at different concentrations and measured their root length,seedling height,and root shoot ratio.The growth of tested varieties was compared with those under normal physical condition in the field and was further analyzed.The results showed each variety responded significantly different to the different concentrations of PEG-6000 osmotic solution.EV1 EV2 and EV3 had larger root length,seeding height and root shoot ratio than EV5 and EV6.At field five leaves stage,compared to EV5 and EV6,EV2 and EV3 had bigger canopy cover area,larger dry matter accumulation and root dry weight.The study showed there was a strong correlation between canopy cover area and dry matter accumulation.In conclusion,taking the characters of seedlings under drought stress into consideration,Brassica variety of stronger early vigor will have superior growth potential in the field.关键词
甘蓝型油菜/干旱胁迫/幼苗生长/早期活力Key words
Brassica napus L./ drought stress / seedling growth/ early vigor分类
农业科技引用本文复制引用
关周博,田建华,胡银岗,李少钦,赵卫国,韦世豪,姚雪雁,张文学,李殿荣..模拟干旱胁迫下甘蓝型油菜幼苗生长与早期活力的关系研究[J].干旱地区农业研究,2013,31(3):145-149,5.基金项目
科学家岗位油菜现代产业技术体系建设(CARS-13) （CARS-13）
旱区作物逆境生物学国家重点实验室开放课题基金(CSBAA2013013) （CSBAA2013013）
陕西省国际合作项目"利用基因工程技术培育优质高油抗旱耐热高产油菜新品种合作研究"(2012KW-15) （2012KW-15）
