天山郁金香种子解除休眠过程中生理生化的变化

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中图分类号：S682.263 文献标识码：A 文章编号：1000-4440（2025）05-0977-07

Abstract：In this study，seeds of Tulipa thianschanica Regel were subjected to stratification at 4°C to systematically analyzethe physiological and biochemical changes during theprocess ofseeddormancyrelease.Theresults showed that in termsofseed storagesubstances，withtheextensionof stratificationtime，thecontentof solublesugarsintheseeds firstdecreasedand thenincreased，thecontentof starch firstincreasedandthendecreased，andthecontentof soluble proteinscontinuouslydeclined.Intermsofseedenzymeactivity，withtheextensionofstratificationtime，theactivityofperoxidase （ P（DD ）intheseeds first decreasedand then increased.Intheearly stratificationstage（1-1Odays），theactivities of glucose-6-phosphate dehydrogenase （G-6-PDH） and 6-phosphogluconate dehydrogenase （ 6-PGDH ） in the seeds showed no significantchange.However，inthelatestratificationstage（4Odays），theactivitiesofbothenzymesintheseedssignificantly

increased.In terms of endogenous hormone content，with theextensionofstratificationtime，thecontentofabscisic acid（ABA）in theseedsfirst increased and then decreased，thecontentofgibberellin（ GA3 ）first decreased andthen increased，while thecontentsof auxin（IAA）and cytokinin（CTK）continuously rose.The results ofthis studyelucidated the changes in the content of storage sub

stances，enzyme activities，and hormone levels duringthe dormancyrelease of Tulipa thianschanica Regel seeds，providing a theoretical basis for the dormancy regulationand eficient propagationof Tulipa thianschanica Regel seeds.

Keywords：Tulipa thianschanica Regel；seed；dormancy；enzyme activity；hormone

天山郁金香（Tulipa thianschanica Regel）为百合科（Liliaceae）郁金香属（Tulipa）多年生野生花卉，主要分布于中国新疆和中亚地区[1]，其花色艳丽、花型独特、抗逆性强。（剩余10316字）