广东石油化工学院学报2024，Vol.34Issue(3)：116-120,5.
干旱胁迫下胡麻种子萌发动力学分析及抗旱性鉴定
Analysis of Germination Kinetics and Identification of Drought Tolerance in Flax Seed Under Drought Stress
摘要
Abstract
Flax is an important economical crop in China.To evaluate the drought resistance of flax seeds during germination,5 flax varieties were used as research materials and 5 water stress levels(0,-0.2,-0.4,-0.6,-0.8 MPa)were set for germination experiments.The results showed that mild drought stress(-0.2 MPa)had little negative effect on seed germination,and even increased the germination rate of some varieties or promoted root growth.Under moderate drought stress(-0.6 MPa),the seed germination rate decreased significantly,ranging from 24.70%(for SL297)to 75.70%(for DG241);the average germination time MGT prolonged to 36.80～56.60 h,and the root length decreased to 24.6%～57.8%of the value measured in normal condition.There were genotypic differences among the five varieties in response to drought stress,and only JN221 could germinate under-0.8 MPa.Taken together,it seems that the drought tolerance of DG241 and JN221 was the best,followed by MG231,and SL297 was the worst.关键词
胡麻/种子萌发/干旱胁迫Key words
flax/seed germination/drought stress分类
农业科学引用本文复制引用
陆光远,高健彬,胡伟杰,李雪芹,赵永国..干旱胁迫下胡麻种子萌发动力学分析及抗旱性鉴定[J].广东石油化工学院学报,2024,34(3):116-120,5.基金项目
广东石油化工学院人才引进项目(2021rc009) （2021rc009）
粤港澳大湾区高校在线开放课程联盟教育教学改革研究项目(WGKM.2023116) （WGKM.2023116）
广东石油化工学院教育改革项目(JY202224) （JY202224）
