Pengaruh Lama Perendaman Dan Konsentrasi Hormon GA3 Terhadap Vigor Dan Viabilitas Benih Jati Di Persemaian

Abstract

This researchaimstostudy the effect ofthe interactionbetweensoaking timeandthe concentration ofGA3hormonesthataffect thevigor, and viabilityof seedsTeak(Tectona grandisLf) in the nursery, as well as findingthe length of timeof immersionandthebesthormone concentrationGA 3 onvigor, and viabilityof seedsteakin the nursery.Experimentsusing arandomized block design(RBD) factorial design, whichconsists oftwofactors:the length ofimmersionandconcentration ofGA 3 hormones. The first factoris the length ofimmersion(W), consisting offour levels: w 1 =Immersion6hoursinGA 3 , w2=Immersion12hoursinGA 3 , w 3 =Immersion18hoursinGA 3 andw 4 =Immersion24 hoursinGA 3. The second factoris theconcentration ofhormonesGA 3 (A), consistingoffour levels: a 1 =concentration of250ppmGA 3 hormones, a 2 =concentration of500ppmGA 3 hormones, a 3 =concentration of750ppmGA 3 hormones, a 4 =concentration of1000 ppmGA 3 hormones.The results showedthat the interactionbetween thedurationof immersionandhormoneconcentrationGA 3 onseedgermination, and seedgrowingspeed. The duration ofimmersion18hoursandhormoneconcentrationof 750ppmGA 3 givethe besteffectonseedgerminationandseedgrowth rate.