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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Sarsidi S astrosumarjo
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

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Daya Gabung dan Heterosis Ketahanan Pepaya (Carica papaya L) terhadap Penyakit Antraknosa*) Siti Hafsah; Sarsidi S astrosumarjo; Sriani Sujiprihati; , Sobir; Sri Hendrastuti Hidayat
Indonesian Journal of Agronomy Vol. 35 No. 3 (2007): 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 (55.372 KB) | DOI: 10.24831/jai.v35i3.1331

Abstract

This study was conducted to determine the relative importance of general (GCA) and specific (SCA) combining ability and heterosis effects on resistance to C. gloeosporioides in selected papaya genotypes. A half diallel mating scheme of five genotypes of papaya were evaluated in the field. The combining ability analysis revealed that both the additive and nonadditive gene effects were present.  Crosses between the resistance and susceptible genotypes showed intermediate disease reaction to papaya anthracnose disease (PAD) suggesting a polygenic system of resistance to the disease. Highly resistance heterosis of 51.51% at Tajur and 48.71% at Gunung Geulis were expressed in crosses between IPB5 x PB000174.   Key words: Papaya, anthracnose, GCA, SCA, heterosis
Co-Authors Siti Hafsah Sobir Sobir SRI HENDRASTUTI HIDAYAT Sriani Sujiprihati