Indonesian Journal of Agricultural Science
Vol 14, No 2 (2013): October 2013

ANALYSIS OF GENETIC PARAMETERS FOR BEAN PHYSICAL QUALITY CHARACTERS AND CLUSTERIZATIONS OF ELEVEN GENOTYPES OF ROBUSTA COFFEE (Coffea canephora)

Rubiyo, Rubiyo ( Balai Penelitian Tanaman Industri dan Penyegar Jalan Raya Pakuwon km 2, Parungkuda, Sukabumi 43357, Jawa Barat, Indonesia)
Wardiana, Edi ( Balai Penelitian Tanaman Industri dan Penyegar Jalan Raya Pakuwon km 2, Parungkuda, Sukabumi 43357, Jawa Barat, Indonesia)



Article Info

Publish Date
17 Sep 2014

Abstract

The genetic parameters of coffee related to their bean physical quality characters are important for breeder to improve the  bean quality. Eleven genotypes of robusta coffee were identified and their genetic relationship to the bean physical quality were characterized. The research was conducted at coffee plantation of the Association of Indonesian Coffee Exporters in West Lampung, altitude of 800 m above sea level, Latosol type of soil, and A type of climate, starting from 2010 to 2012. The objectives of this study were to estimate the genotypic coefficient of variation, heritability and genetic advance of the bean physical quality characters, and clusterization analysis of eleven genotypes of robusta coffee. A randomized complete block design with eleven treatments of coffee genotypes and three replications was used in this study. The results showed that the estimated values of genotypic coefficient of variation, heritability and genetic advance for small-size normal bean characters of robusta coffee were very high, so the genetic improvement for these characters has a high probability of success by direct selection. Clusterization of the genotypes resulted three clusters with their respective characteristics. The study implies that future breeding program especially for hybridization should be conducted between genotypes arising from different clusters to obtain the possible high heterosis effects.

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Journal Info

Abbrev

IJAS

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

The journal publishes primary research articles from any source if they make a significant original contribution to the experimental or theoretical understanding of some aspect of agricultural science in Indonesia. The definition of agricultural science is kept as wide as possible to allow the ...