HERITABILITY, COMBINING ABILITY AND INHERITANCE OF STORAGE ROOT DRY MATTER IN YAM BEANS

Storage root dry matter content (RDM) is central to the improvement of consumer and industrial attributes of root crops. Yam bean ( Pachyrhizus species) is a legume root crop newly introduced in Uganda, but its adoption may be constrained by low RDM. The objective of this study was to investigate th...

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Veröffentlicht in:African crop science journal 2017-03, Vol.25 (1), p.83
Hauptverfasser: AGABA, R, TUKAMUHABWA, P, RUBAIHAYO, P, MWANGA, R.O.M, SSENYONJO, A, NDIRIGWE, J, TUMWEGAMIRE, S, GRÜNEBERG, W
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Sprache:eng
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Zusammenfassung:Storage root dry matter content (RDM) is central to the improvement of consumer and industrial attributes of root crops. Yam bean ( Pachyrhizus species) is a legume root crop newly introduced in Uganda, but its adoption may be constrained by low RDM. The objective of this study was to investigate the magnitude of variance for general combining ability (GCA) and specific combining ability (SCA) effects, heritability estimates and inheritance of RDM in yam beans. Progenies of sixteen crosses, generated using the North Carolina (NCII) mating scheme, were evaluated in F1 and F2 field experiments, with three replications at the National Crops Resources Research Institute (NaCRRI), Namulonge in Central Uganda, during the first cropping seasons of April, 2013 and 2014, respectively. Significant (p
ISSN:1021-9730
2072-6589
DOI:10.4314/acsj.v25i1.6