低温对大白菜幼苗生长及生理指标的影响  

Low Temperature Effects on Growth and Physiological Traits of Chinese Cabbage Seedlings

作　　者：王闯[1] 陈中华[1] 张郑伟[1] 路运才[1] 

机构地区：[1]黑龙江大学农业资源与环境学院/农业资源利用与环境安全重点实验室,哈尔滨150080

出　　处：《中国农学通报》2016年第13期44-48,共5页Chinese Agricultural Science Bulletin

基　　金："十二五"国家科技支撑计划项目"重大农业气象灾害防控与管理技术研究与示范"(2011BAD32B03);黑龙江省教育厅科学技术项目"玉米抗冷出苗优异种质发掘及抗冷相关基因克隆"(12541628);黑龙江大学实验室开放项目"玉米自交系抗低温鉴定与评价"(15K128)

摘　　要：比较不同基因型大白菜对低温冷害的响应,为黑龙江大白菜种植及耐低温品种选育提供依据。白菜幼苗生长至3叶1心时,转入人工气候箱中进行低温处理3天,对6个白菜品种进行生物产量及生理性状测定与分析。结果表明:低温胁迫条件下,6个供试品种生物产量及叶绿素含量均呈下降趋势。除‘新锉四号’外,其余5个大白菜品种的可溶性蛋白含量在低温处理下均高于常温对照。除‘抗病91-12’外,其余5个品种的过氧化物酶活性在低温处理下均高于常温对照。6个大白菜品种耐冷性能力依次为:‘新北京三号’>‘农学昌五小根’>‘牡丹江二号’>‘义和九号’>‘抗病91-12’>‘新锉四号’。因此,‘新北京三号’可作为耐冷性品种在黑龙江地区进行种植。In this paper, the different Chinese cabbage genotypes were compared to study the response to chilling damages. The results may provide some evidences for breeding cabbage with low temperature tolerancein Heilongjiang Province. Chinese cabbage seedlings at three-leaf stage were treated with low temperature inclimate chamber for 3 days. The physiological traits and biological yield were measured. In low temperaturecondition, the biological yield and chlorophyll content of the six varieties decreased. In addition, except‘Xincuo4＇, the soluble protein content of the other five Chinese cabbage varieties was higher than that of control. Except‘KB91-12＇, the POD activity of the other five varieties under low temperature treatment washigher than that of control. Considering the cold resistant ability of the cabbage varieties,‘New Beijing 3＇was the best. Thus‘New Beijing 3＇can be used as one of cold resistance varieties in Heilongjiang Province.

关 键 词：白菜 低温胁迫 生物产量 生理指标 

分 类 号：S-3[农业科学]