防凍劑對(duì)滇丁香抗寒生理的研究初探

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引用格式：.防凍劑對(duì)滇丁香抗寒生理的研究初探[J].湖南農(nóng)業(yè)科學(xué)，2025（3）：83-87.DOI：10.16498/j.cnki.hnnykx.2025.003.015

中圖分類號(hào)：S685.26 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1006-060X（2025）03-0083-05

Effects of Antifreeze on Cold Resistance Physiology of Luculia pinceana Hook

KONG Ling-fang12，SUN Yu-jiao12，LI Shi-feng3

（1.CollgefodcalcalUsitinull Center，Dali6O，C;3.FowerResearchIstitute，YuanAcademyfgriculturalienes，Kuning650）

Abstract：ThisstudyexploredthepositiveefectsoffourdifferenttypesofantifreezeonthecoldresistanceofLuuliapinceana Hook.underlowtemperature stress，aiming toprovideabasis fortheresearch oncoldresistance physiologyandthelarge-scale promotionof tis plant.Thre-year-oldsedlingsofL.pinceana Hook.wereusedastest materials.Five treatments weredesigned， includingCK（water），T（aminoacids+macrelements），（aminoacids+microelements），3（microbialagent），and4（plant hormone）.TheresultsshowedthatT2andT4demonstrated inhibitedplantheight growth，andthevariationrangeof thenumberof branchesandleaves wasgreaterthanthatofCK.T3andT4showcasedsignificantlyreducedrelativeconductanceand malondialdehyde contentadincreasedprolinecontent.Iadition，andT4shwcasedgherperoidaseactivitytanthertreatmentsatthcond andthirdmeasurements.T1-T4inhibitedthedegradationofchlorophyllTheevaluationresultsbasedonthemembershipfunction indicated that the cold resistance of L pinceana Hook. in the four antifreeze treatments followed the trend of T4>T3>T1>T2 ，and only T4 had the D value higher than CK.Inconclusion，the four typesofantifreeze improved thecoldresistance ofL.pinceana Hook.，and the plant hormone （ 0 . 1 % abscisic acid） demonstrated the best performance.

Keywords：Luculia pinceana Hook.; low temperature stress;antifreeze;cold resistance

滇丁香（LuculiapinceanaHook.）為茜草科（Rubiaceae）滇丁香屬的多年生常綠灌木或小喬木，生長(zhǎng)在海拔 6 0 0～3 0 0 0 m 的石灰?guī)r山脈、開闊山坡、次生灌叢和溪流附近的森林中，主要分布于中國(guó)青藏高原東南部、緬甸東北部及越南北部[1]，包括我國(guó)云南、貴州、廣西和西藏等地；其中，在云南省的西南、西北與東南區(qū)域分布最為廣泛。（剩余7042字）