Pengaruh Jumlah Ruas Cabang Terhadap Pertumbuhan Setek Bambu Hitam (Gigantochloa Atroviolacea)

Abstract

Black bamboo (Gigantochloa atroviolacea) is one of the famous bamboo species used, because it has many functions.The effort to maintain bamboo population is by cultivation. Generative cultivation of bamboo is difficult, so that vegetative cultivation by branch cuttings is carried. The aim of this research were to know the effect of number of internodes on black bamboobranchcuttings and the best influence on percentage of life and growth.The experiment used Completely Randomized Design(CRD) with 3treatmentsand 5replications.The treatmentwerenumber ofblack bamboobranch, which were2, 3,and 4 internodes. Eachbranchesplantedin polybag had filledwith top soil.The growth variablesthat measured were the percentage of life, number of shoots, length of shoot, diameter of shoot, number of leaves andlength of root. Theresults showed that thenumber of black bamboo branchinternodesinfluenced onlength of shoot and number of leaves. Blackbamboobranch with 4 internodeswas thebestresultto growth ofblackbamboobranchcuttings because of highestvalue onlength of shoot (3.84 cm) and number of leaves(4.90 sheet). Key words: black bamboo, branch cuttings, number of internodes