低温胁迫下不同花椒品种的生理响应及其抗寒性评价
Physiological Response of Different Zanthoxylum bungeanum Varieties to Low Temperature Stress and their Cold Resistance Evaluation
冯康安 1朱宝才2
作者信息
- 1. 山西林业职业技术学院,山西 太原 030009
- 2. 山西农业大学林学院,山西 太原 030031
- 折叠
摘要
为筛选出适宜本地栽培且抗寒能力强的花椒品种,本试验以'枸椒'、'狮子头'、'陇南大红袍'、'泰安 1 号'和'汉源清椒'共 5 个花椒品种为试材,设置 0、-5、-10、-15、-20℃和-25℃共 6 个温度梯度,研究不同低温胁迫下各花椒品种枝叶生理生化指标的变化趋势,并采用隶属函数法综合评价各花椒品种抗寒能力的强弱.结果表明,随着胁迫温度不断降低,5 个花椒品种枝条的相对电导率和脯氨酸含量呈直线上升趋势,过氧化物酶(POD)、超氧化物歧化酶(SOD)活性和可溶性蛋白、可溶性糖含量均呈现先升后降的趋势,丙二醛含量(MDA)呈现"S"形变化趋势,而叶片叶绿素含量呈直线降低趋势.应用隶属函数法对 5 个花椒品种低温处理下的生理生化响应情况进行综合分析和评价得出,5 个花椒品种的抗寒性由强到弱依次为'陇南大红袍'>'汉源清椒'>'狮子头'>'泰安 1 号'>'枸椒'.
Abstract
In order to select Zanthoxylum bungeanum varieties that are suitable for local cultivation and have strong cold resistance,this experiment was conducted using five Z.bungeanum varieties,namely'Gou-jiao','Shizitou','Longnan Dahongpao','Taian 1'and'Hanyuan Qingjiao'as experimental materials.Six temperatures of 0,-5,-10,-15,-20,-25℃were set to study the change of physiological and biochemi-cal indicators in the branches and leaves of each Z.bungeanum variety under different low temperature stres-ses,and the membership function method was used to evaluate the cold resistance of each Z.bungeanum vari-ety.The results showed that,with the continuous decrease of temperature,the relative conductivity and proline(Pro)content in branches of the five Z.bungeanum varieties showed the straight upward trend;the activities of peroxidase(POD)and superoxide dismutase(SOD),and the contents of soluble protein and soluble sugar showed the trend of first increasing and then decreasing;the malondialdehyde(MDA)content showed a"S"shaped change trend,while the content of leaf chlorophyll showed a straight downward trend.The comprehen-sive analysis and evaluation result on physiological and biochemical responses of the five Z.bungeanum varie-ties under low temperature treatments by membership function method showed that cold resistances of the five Z.bungeanum varieties were'Longnan Dahongpao'＞'Hanyuan Qingjiao'＞'Shizitou'＞'Taian 1'＞'Gou-jiao'.
关键词
花椒/低温胁迫/生理生化/隶属函数法/抗寒性Key words
Zanthoxylum bungeanum/Low temperature stress/Physiological and biochemical/Member-ship function method/Cold resistance引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据