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description Journal article public Jurnal Penelitian Hutan Tanaman

Keragaman Dan Estimasi Parameter Genetik Bibit Mahoni Daun Lebar (Swietenia Macropylla King.) Di Indonesia

Mashudi Mashudi, Mudji Susanto, Darwo Darwo
Published 2017

Abstract

Swietenia macrophylla King. is an exotic species from Latin America. It had been planted in Indonesia since 1870 by the Dutch. This species is important construction timber in Indonesia. This study aimed to measurevariation and genetic parameter estimation of S. macrophylla seedling as material of progeny triadevelopment. The experimental design used Randomized Complete Block Design (RCBD) consisting of twofactors, namely the land race (A) (Banjar-West Java, Samigaluh-Kulonprogro, Bondowoso-East Java andLombok–West Nusa Tenggara) and mother trees (B) (35 mother trees). Five seedlings were recorded andrepeated 5 times for each mother tree. In this study factor B nested in factor A. The result showed that landrace significantly affected to height, stem diameter, and index of robustness; while the mother treessignificantly affected to height, stem diameter, number of leaf, and index of robustness. Individual heritabilityof height, stem diameter, number of leaf, and index of robustness character were 0.35, 0.40, 0.17, and 0.48respectively, while family heritability of height, stem diameter, number of leaf, and index of robustnesscharacter were 0.74, 0.75, 0.54, and 0.77 respectively. Genetic correlation between height and stem diameter(0.70), height and index of robustness (0.40), number of leaf and index of robustness (0.52) were positive valueWhile genetic correlation between height and number of leaf (-0.03), stem diameter and number of leaf (-0.46and stem diameter and index of robustness (-0.67) were negative value.

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