干旱地区农业研究Issue(4)：197-205,9.DOI:10.7606/j.issn.1000-7601.2015.04.30
甘蓝型冬油菜在西北不同生态区适应性及生理生化反应
Adaptation and physiological and biochemical characteristics of winter rapeseed (Brassica napus L .) in different eco-regions of northwest China
摘要
Abstract
In this research ,filed experiments in Tianshui (original planting area ) and Lanzhou (extending northern area ) ,Gansu province ,with 50 winter varieties of B .napus rapes from domestic and international resources ,were con-ducted to study the adaptation and the physiological and biochemical characteristics of the winter Brassica napus .The fol-lowing indexes were included in this analysis including catalase (CAT ) , peroxidase (POD ) , superoxide dismutase (SOD) activities ,malondialdehyde (MDA) ,soluble protein (SP) contents ,and photosynthetic parameters during the pre-winter cold acclimation stage .The results showed that the wintering rate of varieties (lines ) tested in Lanzhou was decreased largely compared to that in Tianshui ,which suggested that Tianshui was the north boundary of winter rape planting .Some growth morphologies of winter rapeseed seedlings were changed .78% of leaf color of varieties (lines ) were deepened ,52% of the petiole length of varieties (lines ) became shorter ,and the number of cleft leaf pairs of most varieties (lines ) went increased from 1-2 to 3-4 . Gs and Ci of leaves were decreased by 1 .54% and 60 .53% on av-erage ,respectively , while Tr was increased by 44 .27% with low temperature treatment . Pns of different varieties (lines ) varied significantly .The protective enzyme activities ,soluble protein and MDA contents of the varieties tested in Lanzhou were increased compared to those in Tianshui ,and the average increases were 29 .37% and 48 .82% ,respec-tively .Through correlation analyses ,it was found that there were significant positive pairwise correlations among the POD activity ,soluble protein content and the wintering rate ,and a negative correlation between MDA content and the winter-ing rate .关键词
甘蓝型冬油菜/生态区/酶活性/抗寒性Key words
winter rapeseed ( Brassica napus L .)/eco-regions/enzyme activity/cold resistance分类
农业科技引用本文复制引用
王月,董红业,杨刚,侯献飞,刘林波,种彦容,孙万仓,刘自刚,杨宁宁,方彦,曾秀存,孔德晶,鲁美宏,王丽萍..甘蓝型冬油菜在西北不同生态区适应性及生理生化反应[J].干旱地区农业研究,2015,(4):197-205,9.基金项目
农业部公益性行业（农业）科研专项（200903002－04）；国家高技术研究发展计划（“863”计划）项目（201110104）；现代农业产业技术体系建设专项 （）
