不同冬小麦品种萌发期抗旱性鉴定与评价

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中图分类号：S512.1 文献标志码：A 文章编号：2097-2172（2025）04-0337-06

doi：10.3969/j.issn.2097-2172.2025.04.009

EvaluationofDroughtResistancein WinterWheat Varietiesat Germination Stage

XING Yaling，LI Jing，HE Yongbin， ZHOU Dongliang （Dingxi AcademyofAgricultural Sciences，DingxiGansu 743ooo，China）

Abstract：Inorder toexplorethedoughtresistanceof diferent winterwheatvarietiesat germinationstagesoastoprovidea theoreticalbasisforthebredingofdrought-resistant winterwheat，PEG-6OoOwasusedtosimulatedroughtstres，andthe germinationpotential，grminationrate，udlength，radiclelength，coleoptilelength，rootshootatioandmainradicleuberof diferentwheatvarietiesunderdroughtstresseremeasured.ResultsshowedthatwiththeincreaseofPEG-6OOOconcentration，the germinationpotential，germinationrate，budlengthandradiclenumberof winterwheatatgerminationstageweredecreased，the coleoptilelengthandmainradiclelengthwereincreasedfirstandthendecreased，andtherootshotratiowasincreasedIn conclusion，Longzong3，Longzong4，Longzhong5，Longzhong6，Longzhong8，Longzhng10andCang6878hadgoddogt resistance，and were suitable for planting in arid and semi-arid areas of Longzhong and similar ecological types.

Key Words：Winter wheat； Germination stage； Drought resistance； PEG-6OoO； Drought stress

小麦是我国主要粮食作物之一，在农业生产和粮食安全保障中起着十分重要的作用「1]。（剩余8119字）