羊茅属3份种质材料种子萌发期的耐盐性比较  

Comparison of Salt Tolerance of Seed Germination of Three Germplasms of Festuca

作　　者：李瑞静 石凤翎 谷蕊 崔宇豪 Li Ruijing;ShiFengling;GuRui;CuiYuhao(College of Grassland,Resource and Environmental,Mongolia Agricultural Universit;Hohhot 010 019,China)

机构地区：[1]内蒙古农业大学草原与资源环境学院,内蒙古呼和浩特010019

出　　处：《草原与草业》2018年第3期21-25,共5页Grassland and Prataculture

基　　金：内蒙古自治区草原英才"内蒙古高原乡土草种质资源遗传改良与利用"创新团队;内蒙古自治区应用技术研究与开发资金计划(201702072);内蒙古农业大学科技成果转化专项资金(YZGC2017011)

摘　　要：对达乌里羊茅(Festucadahurica (St.-Yves)V.I.Krecz.&Bobrov)、紫羊茅(F.rubra L.)、紫羊茅-梦神(F.rubraL.cv.Maxima)在种子萌发期用不同浓度的Nacl溶液胁迫,通过种子萌发过程中生活力和活力的变化,分析比较3份种质材料耐盐性的强弱。研究结果显示,不同浓度的Nacl溶液对其种子活力、发芽速度、生长情况均存在抑制作用。其中0.4%Nacl溶液促进达乌里羊茅种子发芽势,高于对照。1.6%-2.0%Nacl溶液胁迫下3份材料种子损害严重;综合评价达乌里羊茅耐盐性最强,梦神居中,紫羊茅最弱。Festucadahurica （St. Yves） V.I. Krecz.＆Bobrov, F. rubra L. ,F. rubraL, cv. Maximawas stressedwith different concentrations of Nacl solution during seed germination, and the changes of viability and vigor during seed germination were studied. The salt tolerance of 3 germplasm materials was analyzed and compared. The results showed that the seed vigor, germination rate and growth rate of different concentrations of Nacl solution were all preserved. In the inhibition. The seed germination potential of Festucadahurica （St. -Yves） V.I. Krecz. ＆Bobrov was promoted by 0. 4%Nacl solution, which was more serious than that of control. 1.6% -2. 0%NaCl solution, the damage was serious, the salt tolerance of Festucadahurica （St.- Yves） V.I. Krecz. ＆Bobrov was the strongest, F. rubraL, cv. Maximawas the middle, and theF. rubra L. was the weakest.

关 键 词：达乌里羊茅 紫羊茅 梦神 种子萌发 耐盐性 

分 类 号：S54[农业科学—作物学]