Identifikasi Aksi Gen Epistasis pada Toleransi Kedelai terhadap Cekaman Aluminium

  • Arvita Netti Sihaloho 1Program Studi Pemuliaan dan Bioteknologi Tanaman, Sekolah Pascasarjana, Institut Pertanian Bogor 2Jurusan Agroteknologi, Fakultas Pertanian, Universitas Sisingamangaraja XII Tapanuli Jl. Silangit No. 9 Tapanuli Utara, Sumatera Utara, Indonesia
  • Trikoesoemaningtyas . Departemen Agronomi dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (Bogor Agricultural University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia
  • Didy Sopandie Departemen Agronomi dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (Bogor Agricultural University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia
  • Desta Wirnas Departemen Agronomi dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (Bogor Agricultural University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia

Abstract

The efectiveness of selection depends on the gene action cotrolling the character.  The presence of epistatic gene action will delay the genetic gain in self pollinated crops like soybean. The objective of this research was to obtain information on genetic control of soybean tolerance to aluminum toxicity on nutrient culture. This research was conducted at green house of  the University Farm IPB Cikabayan, Bogor, from April to June 2013. This research used 120 seedlings of F2 population  generated from  crossing between Argomulyo (Al-sensitive) with Tanggamus (Al-tolerant). Seedlings were grown in nutrient culture for 14 days with Al concentration of 1.5 mM and pH 4.0, to observe the vegetative growth under aluminum stress condition. The result showed that mean of roots length, shoot length, shoot to root ratio, wet and dry weight of root and shoot exceeded  both parents mean value with moderate to high heritability. All observed characters had continue distribution pattern, and controlled by many genes. Duplicate epistasis additive gene action controlled only root length while other characters were controlled by complementary epistasis gene action.
Keywords: gene action, heritability, nutrient culture, selection, tocixity
Published
2015-06-30
How to Cite
SihalohoA. N., .T., SopandieD., & WirnasD. (2015). Identifikasi Aksi Gen Epistasis pada Toleransi Kedelai terhadap Cekaman Aluminium. Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy), 43(1), 30-35. https://doi.org/10.24831/jai.v43i1.9587