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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Helfi Eka Saputra
Program Studi Pemuliaan dan Bioteknologi Tanaman, Sekolah Pascasarjana IPB Jl. Meranti Kampus IPB Darmaga, Bogor 16680, Indonesia
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

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Pendugaan Daya Gabung dan Heritabilitas Komponen Hasil Tomat pada Persilangan Dialel Penuh Helfi Eka Saputra; Muhamad Syukur; Syarifah Iis Aisyah
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 42 No. 3 (2014): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (320.26 KB) | DOI: 10.24831/jai.v42i3.9168

Abstract

ABSTRACT Hybridization is one of plant breeding techniques to obtain high yielding varieties. Combining ability and heritability information are needed for evaluating hybrids’ performance. The objective of this research was to estimate the combining ability and heritability of tomato yield component traits in a full dialel crosses at lowland. The experiment was conducted  at Leuwikopo Experimental Station IPB, Darmaga, Bogor from March until August 2013. The random model of Griffing method I was used to estimate general combining ability, specific combining ability and heritability. The experiment used a randomized complete block design (RCBD) with three replications. IPBT1, IPBT13 and IPBT84 had a good general combining ability (GCA) for weight per fruit, fruit size and weight of fruit per plant. IPBT30 and IPBT33 had a good general combining ability (GCA) for number of fruits per plant. IPBT13 × IPBT1 hybrid showed a high and positive specific combining ability (SCA) values for all characters, therefore it can be used for hybrid variety. The highest broad and narrow sense heritability was obtained for fruit size, meanwhile the lowest was obtained for weight of fruit per plant. Weight per fruit, fruit size and weight of fruit per plant characters were influenced by additive and dominant gene effects, whereas number of fruit  per plant was influenced by additive gene effects.      Keywords: additive, dominant, GCA, SCA, heritability
Co-Authors Muhamad Syukur Syarifah Iis Aisyah