新疆农业科学2018，Vol.55Issue(1)：82-94,13.DOI:10.6048/j.issn.1001-4330.2018.01.010
不同品种亚麻萌发期抗旱性评价
Drought Evaluation of Different Varieties of Flax
摘要
Abstract
[Objective] To screen the suitable PEG -6000 concentration to evaluate the drought resist-ance of flax,and explore the causes of drought resistance in flax seeds.[Method]Different PEG-6000 con-centrations(0,5%,10%,15%,20%,25%and 30%)were used to simulate the drought stress on germi-nation stage in 15 flax seeds and seven indicators including germination energy, germination rate were meas-ured.Membership function method was used to comprehensively analyze the correlation among the water ab -sorption rate,thousand-grain weight and drought resistance of flax seeds.[Result]Under 5% PEG-6000 stress,except Atalante,the germination rate of the remaining cultivars was higher than that of CK.All of the variation coefficients of 20%PEG-6000 concentration were the highest among the three indicators of germina-tion rate,bud length and total length.Under different treatments,the water absorption rate of flax seeds in 48 hours was obviously negatively correlated with the drought resistance of flax.[Conclusion]Low PEG-6000 concentration can promote the germination of flax seeds.20%PEG-6000 concentration is the optimum con-centration of flax drought resistance to evaluate the difference of varieties in flax.The water absorption rate of seeds is one of the factors affecting the drought resistance of flax.关键词
亚麻/PEG-6000/干旱/最适浓度/种子吸水率Key words
flax/PEG-6000/drought/optimum concentration/seeds water absorption rate分类
农业科技引用本文复制引用
闫文亮,郭栋良,钟俐,杨亮杰,江海霞,张喻,谢丽琼..不同品种亚麻萌发期抗旱性评价[J].新疆农业科学,2018,55(1):82-94,13.基金项目
新疆维吾尔自治区高技术项目(201517108) （201517108）
国家自然科学基金项目(31160056/C020408)Xinjiang Uygur Autonomous Region High－tech Program(201517108) （31160056/C020408）
The National Natural Science Foundation of China(31160056／C020408) （31160056／C020408）
