新疆农业科学2016，Vol.53Issue(11)：2040-2046,7.DOI:10.6048/j.issn.1001-4330.2016.11.010
NaCl胁迫对六个不同类型黑果枸杞种子萌发的影响
Effects of NaCl Stress on Seed Germination of Six Lycium ruthenicum Murr.Types
摘要
Abstract
Objective]The objective of this experiment is to compare the salt tolerance of six types of Lycium ruthenicum Murr.The results of this study might provide a technical basis for promoting the best type in Northern Xinjiang.[Method]The study included three ecotypes of L.ruthenicum (Xining wild type,Korla wild type,Wuwei wild type)and the corresponding promising selection (Xining promising selection,Korla promising selection,Wuwei promising selection).The seeds were treated with NaCl concentrations of 50, 100,150,200,250,and 300 mmol/L.A standard of 50 percent germination rates was set for production re-quirements.Seeds were considered to be under significant duress when the germination rates were less than 50 percent.Seed germination rate,relative salt injury rate,salt tolerance concentration,and seedling growth were measured under different NaCl concentrations.[Result]Germination rate,seedling growth decreased as NaCl concentrations increased between 50 and 300 mmol/L.Regression analysis was conducted to determine the relationship between NaCl concentration and germination rate.The regression analysis indicated that the critical NaCl concentration was greater for the promising selection type seeds than for wild type seeds.The crit-ical NaCl concentration was 150-300 mmol/L for the promising selection type seeds and 100-150 mmol/L for the wild type seeds.[Conclusion]The results indicated that among the six types,the promising selection Wuwei type and the promising selection Korla type had relatively high salt tolerance,whereas wild Xining type and wild Wuwei type had relatively low salt tolerance.关键词
黑果枸杞/NaCl胁迫/种子萌发Key words
Lycium ruthenicum Murr./NaCl stress/seeds germination分类
农业科技引用本文复制引用
刘秋辰,冯建荣,郝玉杰,樊新民,张永东..NaCl胁迫对六个不同类型黑果枸杞种子萌发的影响[J].新疆农业科学,2016,53(11):2040-2046,7.基金项目
国家自然科学基金项目（31272129）@@@@The National Natural Science Foundation of China （）
