亚麻萌发期种质资源抗旱性评价及抗旱资源筛选
Evaluation of Drought Resistance of Germplasm Resources in Flax Germination Stage and Screening of Drought Resistance Resources
杨洌 1陶雷 2程莉莉 1姚玉波 1唐立郦 1刘丹丹 1吴广文 1宋宪友 1袁红梅1
作者信息
- 1. 黑龙江省农业科学院经济作物研究所,黑龙江 哈尔滨 150086
- 2. 东北林业大学生命科学学院,黑龙江 哈尔滨 150040
- 折叠
摘要
为了评价不同亚麻种质资源萌发期的抗旱性以及筛选抗旱品种,研究以 26 份亚麻种质资源为材料,在种子萌发期利用聚乙二醇溶液(PEG-6000)模拟干旱胁迫,测定 26 份亚麻种质资源种子萌发期发芽率、发芽势等 9 个指标.结果表明,筛选干旱胁迫的最适PEG-6000 浓度为15%.通过相关性分析、主成分分析筛选出4 个综合抗旱性评价的关键指标:相对根鲜重、相对根干重、相对幼苗重和相对根长.建立了亚麻种质资源萌发期抗旱性评价体系,同时通过隶属函数分析筛选出2 份抗旱的亚麻资源K6540-1 和AMINNA.
Abstract
In order to evaluate the drought resistance of different flax germplasm resources during germination and screen drought-resistant varieties,26 flax germplasm resources were used as materials in this study,using polyethylene glycol solution(PEG-6000)to simulate drought stress during seed germi-nation.Nine indexes such as germination rate and germination potential of 26 flax germplasm resources during seed germination were determined.The results showed that the optimum PEG-6000 concentration for simulating drought stress was 15%.Through correlation analysis and principal component analysis,four key indexes of comprehensive drought resistance evaluation were screened out:relative root fresh weight,relative root dry weight,relative seedling weight and relative root length,and the drought resist-ance evaluation system of flax germplasm resources at germination stage was established.At the same time,two drought-resistant flax resources,K6540-1 and AMINNA,were screened out by membership function analysis.
关键词
亚麻/萌发期/干旱胁迫Key words
flax/germination period/drought stress引用本文复制引用
基金项目
黑龙江省农业科技创新跨越工程(CX23GG04)
财政部和农业农村部:国家麻类产业技术体系哈尔滨麻类综合试验站(CARS-16-S3)
出版年
2024
国家科技期刊平台
NSTL
万方数据