understand
thegrowthpotentialofthisplantfromdormancyandtodevelopeffectivetechniquestoinducetheadventi-
tiousrootsinwinter,Premnawascutandplantedbysoilcultureorsolutioncultureintheroomintheroom
fromOctobertoDecember.eresultsshowedthatPremnabranchesinthecoldseasonhaverootingpoten-
tial,andtheinductionofrootwasdecidedgreatlybytheenvironmentalfactors.Underthesametemperature
ofaround20cCwithcompensationlight.Premnabranchesbysoilculturesproutedwithoutrooting.Compared
tothat,Premnaundersolutionculturehadnotonlygrownsprouts,butalsowasinducedadventitiousrootsby
10%.Insolutionculture,.
balancedmineralnutritioncouldpromoterootgrowthandraisetheinductionrate, becausePremnaculturedin1/10Hoaglandnutrientsolutiohwasinducedroots6dearlierthanthatwithout
mineralelementsinthesolution,andhadrootinductionrateof33.33%.Rootsinducedbysolutionwere
strongwithfewbranches.AuxindidnothaveanobviouseffectonrootinducinginPremna. Keywords:PremnamicrophyllaTurcz.,adventitiousroots,dormancy,solutionculture 豆腐柴PremnamicrophyllaTurcz.)又名豆腐木,
臭黄荆,腐婢,系马鞭草科,属于落叶灌木类,是一种药
食兼用植物.豆腐柴叶中含有丰富的果胶,植物蛋白
质,糖类和氨基酸等营养成分,而且含有木栓酮,木栓
醇,十八碳酸,甾醇,胡萝卜甙,柚皮素,香草酸等多种
药用成分.其根,茎,叶均可入药,民间常用来治疗蛇咬
伤,创伤出血,腰腿痛,跌打损伤,风火牙痛,烧伤及疟
疾,痢疾等症.其叶提取物具有抗疲劳,降低胆固醇等
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