摘要
为评估不同燕麦品种的盐碱耐受性,并筛选出耐盐碱品种,使用3类盐NaCl、Na2SO_(4)和NaHCO_(3)按照摩尔比1:1:1分别配制浓度为0.8%和1.2%的混合盐碱胁迫溶液,蒸馏水处理为对照,基于隶属函数法对18份燕麦品种的耐盐碱性进行综合评价与筛选。结果表明,在盐碱胁迫下,不同燕麦品种的耐受能力不同,发芽率、发芽势、根长、芽鲜重和根鲜重指标均受到不同程度的影响,且互有相关性;通过主成分分析,以特征值大于1为标准得到3个主成分,可解释74.20%的耐盐碱指标信息;结合隶属函数分析,可获得不同燕麦品种耐盐碱综合评价值(D)。根据D值进行聚类分析,将18个燕麦品种划分为3个等级,其中高耐盐碱型6个,中耐盐碱型5个,盐碱敏感型7个。
In order to evaluate the saline-alkali tolerance of different oat varieties and screen out oat varieties with saline-alkali tolerant characteristics,this study utilized stress solutions with three salts NaCl,Na2SO_(4),and NaHCO_(3) at concentrations of 0.8%and 1.2%based on a molar ratio of 1:1:1,and using the distilled water treatment as control.A comprehensive evaluation and screening of the saline-alkali tolerance of 18 oat varieties were conducted using the membership function method.The results showed that under saline-alkali stress,different oat varieties exhibited different tolerances to the stress.Indicators such as germination rate,germination potential,root length,shoot fresh weight,and root fresh weight were all affected to different degrees and were intercorrelated.Through principal component analysis,three principal components with eigenvalues greater than 1 were identified,which could explain 74.20%of the information from the saline-alkali tolerance indicators.Combined with the membership function analysis,a comprehensive evaluation(D-value)for saline-alkali tolerance was obtained for different oat varieties.Based on the D-value,cluster analysis was conducted,categorizing the 18 oat varieties into three classes,including six high saline-alkali tolerance types,five medium saline-alkali tolerance types,and seven saline-alkali sensitive types.
作者
陈萍
罗园园
王娟
孙权
马玲芳
马文礼
谢静波
Chen Ping;Luo Yuanyuan;Wang Juan;Sun Quan;Ma Lingfang;Ma Wenli;Xie Jingbo(College of Forestry and Prataculture,Ningxia University,Yinchuan 750021,Ningxia,China;Ningxia Reclamation Agricultural,Forestry and Animal Husbandry Technology Extension and Service Center,Yinchuan 750021,Ningxia,China;College of Agriculture,Ningxia University,Yinchuan 750021,Ningxia,China)
出处
《作物杂志》
北大核心
2025年第5期61-66,共6页
Crops
基金
宁夏回族自治区青年拔尖人才项目(7206-2023)
重点实验室开放基金项目(LDER2023Z03)。
关键词
燕麦
盐碱胁迫
主成分分析
隶属函数
回归分析
Oat
Saline-alkali stress
Principal component analysis
Membership function
Regression analysis
