1Division of Plant Breeding & Genetics, Regional Agricultural Research Station, Pattambi-679 306, Palakkad district, Kerala, India
2Department of Plant Breeding & Genetics, College of Agriculture, Vellayani, Thiruvananthapuram-695 522, Kerala, India
*Email: sindhumolp@gmail.com
Online published on 17 December, 2015.
Generation mean analysis of four crosses of okra (Abelmoschus esculentus (L.) Moench) viz., NBPGR/TCR-1498 x NBPGR/TCR-2060, NBPGR/TCR-2019 x Parbhani Kranti, MDU-1 x Varsha Uphar, NBPGR/TCR-985 x Parbhani Kranti was conducted for studying gene action of resistance to two major diseases viz., yellow vein mosaic (YVM) and Alternaria leaf spot under Kerala conditions. Duplicate gene action was observed for resistance to both diseases, which indicated hindrance to improvement by simple selection. Hence reciprocal recurrent selection would be useful for the effective utilisation of both types of additive and non-additive gene effects simultaneously.
Abelmoschus esculentus, gene action, epistasis, dominance, additive, yellow vein mosaic, leaf spot
