小白菜耐热性鉴定及其耐热性分析  

Identification and Analysis of Heat Tolerance Identification and Analysis for Brassica campestris ssp. chinensis

作　　者：张景云[1] 赵晓东[2] 万新建[1] 熊德桃[1] 胡新龙[1] 缪南生[1] 

机构地区：[1]江西省农业科学院蔬菜花卉研究所,江西南昌330200 [2]江西农业大学农学院,江西南昌330045

出　　处：《核农学报》2014年第1期146-153,共8页Journal of Nuclear Agricultural Sciences

基　　金：现代农业产业技术体系专项资金(CARS-25);江西省农业科学院创新基金(2010CBS004)

摘　　要：以68份小白菜为试材,通过田间表型鉴定,筛选出耐热性不同的材料,并对不同耐热性材料的丙二醛含量、叶片质膜透性和脯氨酸含量进行测定。结果表明,通过田间表型鉴定,筛选出5份耐热材料和5份不耐热材料,高温胁迫下,随着时间的延长,耐热材料和不耐热材料的丙二醛含量、叶片质膜透性和脯氨酸含量呈升高的趋势,且两者间差异达显著水平。因此,丙二醛含量、叶片质膜透性和脯氨酸含量可以作为小白菜耐热性鉴定的间接指标。Sixty-eight varieties of Brassica campestris ssp. chinensiswere tested and screened for heat tolerance based on phenotype evaluation in field, and varieties with various heat tolerances were measured for their malondialdehyde content, relative leaf membrane permeability and proline content. The results showed the five tolerant varieties and five sensitive varieties selected were increased in malondialdehyde content, relative leaf membrane permeability and proline content under heat stress as time proceeded, but significant differences were found between the two groups of varieties. Therefore, malondialdehyde content, membrane permeability and proline content could be used as physiological indices for identification of heat tolerance in Brassica campestris ssp. chinensis.

关 键 词：小白菜 耐热性 鉴定 生理指标 

分 类 号：S634.3[农业科学—蔬菜学]