五个月季品种耐寒生理机制初探

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关键词：月季（Rosahybrida）；品种；抗寒性；生理机制

中图分类号：S685.12 文献标识码：A

文章编号：0439-8114（2025）12-0124-07

DOI：10.14088/j.cnki.issn0439-8114.2025.12.021 开放科学（资源服务）标识码（OSID）：口

Preliminary study on the cold resistance physiological mechanisms of five rosa varieties

CHEN Si-yu 1 ，LI Li-mei1，JINGui-xiang1，YU Hai-yuan1，DAI Wei，LYU Meng-yan’，ZHANG Li-min1，CHEN Shi-gang'， LIJuan1，YUYang²，LIANG Shuang，RENJun1 （1.JilinProvicialcadeyofForstryiens（JilinrovcialFrstrylogicalCotrolCenter），angcua）

Abstract：Taking fiverose varietiesincluding SoeurEmmanuell，RedDevil，，Chocok，Mountainsunrise，andAlpineflameasmeterials，during tegowingsason，thegrowthvigorofachvarietywasoserved，andchangesinphysiologicalandbiochemicaldictorsweremeasuredduringthenaturalcoling process inwinter.Theseindicators includedrelativeconductivity，malondialdehyde （MDA）content，solublesugarandstarchcontent，aswelas theactiesofsuperoxidedismutase（SOD），catalase（CAT），proxidase（POD），andphenylalanineammonia-lyase（PAL）.Theaimwas toclarifytherelationshipbetweencoldresistanceandthese physiologicalandbiochemicalindicatorsindiferentrosevarieties.TheresultsshowedthatonlyAlpineflameandMountainsunise couldoverwinternormallyinJilinProvinc，andhdaelativelylongfloweringperiod.Astemperaturesdecreased，theelativecon ductivityofallvarietisiitiallycreased，hndecreased，ndtencreasedagain.TheDcotengenerallysowdanupard trend. At -11 C ，Alpine flame and Mountain sunrise exhibited lower relative electrical conductivity values（ 68.58% and 70.83% ，respectively），dicatingthattesetoarietisouldbeterwithtandlowemperatures，withlsselectrolteleakageandmldercell membrane damage compared to the other three varieties.However，Chocok had an MDA content as high as 88.13 μmol/g at 12‰ ，indicating itcouldnolongergrownorallyatthistmperature.Prolineandsolublesugarcontent generallyinreased，whilestarchcontentinitiallyoseandthendeclined.ThesolublesugarcontentofRedDevilandChocokasconsistentlysignificantlylowerhanthat of heothertvritiesicaigweakeresistacetolmperatures.ectiviisofOD，OD，CAndLil ies initially increased during the early stages of cooling，demonstrating their role in cold resistance.

Keywords：Rosahybrida;variety;cold resistance;physiologicalmechanism

月季（Rosahybrida）为蔷薇科（Rosaceae）蔷薇属（Rosa）多年生常绿或半常绿木本植物，因其适应性强，观赏效果好，广泛用于鲜切花、盆栽花、园林绿化等方面[1，2]。（剩余9317字）