摘要
以紫花苜蓿种子为材料,利用培养皿开展种子发芽试验,研究不同浓度NaCl胁迫下种子的萌发及幼苗生长情况。结果表明:NaCl胁迫显著抑制紫花苜蓿种子萌发及幼苗的生长,对根的生长抑制性大于苗和全株;NaCl胁迫下,苜蓿幼苗体内保护性物质(超氧化歧化酶、脯氨酸和可溶性蛋白等)降低了丙二醛的水平。因此,苜蓿可通过自身生理调节作用,减轻NaCl胁迫对其的伤害。
Alfalfa seeds were germinated in the petri dishes.Seed germination and seedling growth were observed in response to different NaCl concentrations.The results showed that NaCl stress significantly inhibited seed germination and the seedling growth of alfalfa,with the inhibitory effects on roots were more severe than shoots.Under NaCl stress,the protective substances(i.e.SOD,proline and soluble protein)could be used to reduce the level of MDA.Therefore,alfalfa can reduce t NaCl stress by auto-physiological regulation,and grow in saline-alkali soil.
作者
苗涵
王鲁北
王振南
李富宽
王慧
杨燕
吕慎金
MIAO Han;WANG Lu-bei;WANG Zhen-nan;LI Fu-kuan;WANG Hui;YANG Yan;LV Shen-jin(College of Agriculture and Forestry Science,Linyi University,Linyi 276000,China;Comprehensive Management Service Center of Linyi,Linyi 276000,China;Linyi academy of agricultural sciences,Linyi 276012,China)
出处
《草原与草坪》
CAS
CSCD
2021年第2期100-104,112,共6页
Grassland and Turf
基金
2018年度山东省大学生科研项目(18SSR064)
2018年国家级大学生创新创业训练计划项目(201810452052)
山东省现代农业产业技术体系牧草创新团队临沂综合试验站(SDAIT-23-10)
山东省现代农业产业技术体系羊创新团队(SDAIT-10-14)。
关键词
NACL胁迫
紫花苜蓿
种子萌发
幼苗生长
生理特性
NaCl stress
alfalfa
seed germination
seedling growth
physiological characteristics
