40份燕麦种质资源萌发期耐盐性评价与筛选

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doi：10.11733/j.issn.1007-0435.2025.12.016

引用格式：，等.40份燕麦种质资源萌发期耐盐性评价与筛选[J].草地学报，2025，33（12）：4033—4043 LIU Xing-cai，HANG Jia-hui，SONG Ting，etal.Salt ToleranceEvaluation and Screeningof 4OForage Oat Germ plasm Resources During seeds Germination[J].Acta Agrestia Sinica，2O25，33（12） ：4033-4043

关键词：燕麦；种质资源；盐胁迫；隶属函数；耐盐性评价中图分类号：S544.9 文献标识码：A 文章编号：1007-0435（2025）12-4033-11

Salt Tolerance Evaluation and Screening of 40 Forage Oat Germplasm Resources During seeds Germination

LIU Xing-cai  ，HANG Jia-hui， SONG Ting，，SHI Xiao-tong，LIU Xiao-xia ，MA Dong-mei （1.Collgoti；i uan，NingxiaoinaCulaBsftateKeyboranddatidEoteRestoratiitiKey LaboratoryostotidosrtidedEoterthetestrucatiiiUsityc uan，Ningxia 750021，China）

Abstract：The germination period is the initial stage of the plantlifecycle.The germination abilityand vitality of seedsdetermine the plant's morphological construction.In order to investigate the degree ofsalt tolerance of different forage oat （Avena satiua L.） germplasm resources，4O forage oat germplasm resources were subjected to salt stress treatment with NaCl solutions at concentrations of O mmol·L-1 ， 50mmol⋅L-1 ， 100mmol⋅L-1 ，and 150 mmol·L-1 in the present study. The germination rate，germination potential，germination index，sed viability index，root length，and bud length were determined.Principal component analysis （PCA），afiliation function and cluster analysis were used to comprehensively evaluate the salt tolerance of the tested materials.The results showed that the germination rate，germination potential，germination index and seed vigor index of the 4O oat germplasms allshowed a decreasing trend with the increase of salt concentration. According to the comprehensive evaluation value ofsalt tolerance，cluster analysis was carried out on the 4O oats and they were divided into 4 categories：extremely salt-tolerant，salt-tolerant，salt-sensitive and extremely salt-sensitive.The extremely salt-tolerant variety‘AN22O’was initiallyscreened out，which showed strong salt tolerance at NaCl concentrations of 50～150mmol⋅L-1 ，and 25 extremely salt-sensitive varieties including‘AO5’‘AO6’‘AN281’，etc.

whose seed germination was significantly inhibited at a NaCl concentration of 50mmol⋅L-1 Key words：Forage oats;Seed resources;Salt stress;Affiliation function;Salt tolerance evaluation

王壤盐碱化是由于自然或人为因素影响，在干旱、半干旱和半湿润地区发生的可溶性盐分积累在土壤表层的现象[1。（剩余18845字）