不同裸燕麦品种的种子萌发期抗旱性鉴定与评价

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关键词：裸燕麦；种子萌发期；PEG-600O；干旱胁迫；抗旱性；评价

中图分类号：S512.6 文献标志码：A 文章编号：2097-2172（2025）12-1128-06

doi：10.3969/j.issn.2097-2172.2025.12.009

Identification and Evaluation ofDrought Tolerance ofDifferent Ruderal Oat Varieties at Germination Stage

DING Shuhui， GUO Jiayi， GUO Haoyue， XIE Songwei， ZHANG Jiahe， DING Qilong， TANG Wenshuo， HONG Zhijun， YU Jing， MU Junxiang （College ofLife Scienceand Technology，JiningNormalUniversity，Ulanqab Inner Mongolia O12ooo，China）

Abstract：Inorder to screen drought-resistant ruderal oat germplasmresources，1Oruderaloat varieties from Ulanqab region wereusedasmaterials，ndseedgerminationexperiment wasconductedbyusingPEG-6OOOsolutiotosimulatedroughtstres，ith sterilewaterasteontrol，andtelevantindicatorsduringthsedgerinationpriodwereeterminedandompsive evaluatioofdroughtresistanceascarriedoutbyfuzzymathematicalaffliationfunctionmethod.Resultssowedtatundersulated drought stress using 15% PEG-60OO solution，the root tips of Wuyou1，Landrace variety，and Baiyan 2 were longerand the decline ratewaslower;thecotyledonsofNakedOats，LandracevarietyandSmallNakedOatswerelongerandthedeclineratewaslower; thegerminationpotentialandgerminationratedeclineratesofLandracevarietyandNakedOatswereboth lessthan 30% .Under droughtstresstheplantfresh weightofWuyou1wasthehighestat48.71g/1Oplants，withthesmalestdecreaseinfreshweight （29.01% ），withLandracevariety came next （43.09 % ）.The dryweight of Bayou9 wasthe highest at11.39g/1O plants，with the smallest decrease（ 31.09% ，followedbytheLandrace variety （32.05%） .The comprehensive evaluation of drought resistance by the membership function method，fromstrongtoweak，wererankedasLandracevarietyWuyou1，NakedOats，Bayou1，mallNakedOts，Bian 2，Pin7，Menga2ou9，ou18.IncsionLandracevietyuyondkedOatsallsoedrongdouge underdroughtstressandwould provideimportant germplasmresouresforthelocaldrought-resistantbreedingofruderaloats.

Key Words：Ruderal oat; Seed germination; PEG-6Ooo; Drought stress; Drought tolerance; Evaluation

裸燕麦（AvenanudaL.）是禾本科燕麦属一年生草本植物，具有耐旱、耐贫瘠和耐盐碱的特性，适宜在冷凉气候条件下生长]。（剩余6718字）