Heterosis and gene action in okra

Abstract

Forty two hybrids generated by crossing three testers with fourteen lines were studied along with parents for studying heterosis and gene action for days to first flowering, days to 50 percent flowering, fruit weight, fruit length, plant height, number of seeds per fruit, 100-seed weight and fruit yield per plant during rainy season and summer season of 2002-03

Heterosis Studies in Okra (Abelmoschus esculentus L. Moench)

“…However, variance due to parent's verses hybrids was not significant for internodal length, stem girth, days to 50 per cent flowering, fruit diameter and number of ridges per fruit. Similar results were obtained by Mehta et al, 2007 andHosamani et al, 2008.…”

Exploitation of heterosis for yield and yield related traits in okra (Abelmoschus esculentus (L.) Moench)

“…Heterosis breeding for yield and its components were extensively studied. Several workers have reported the occurrence of heterosis in fruit yield of okra and its attributing traits (Mehta et al, 2007;Jindal et al, 2009) [11,6] . The exploitation of heterosis is largely dependent on the screening and identification of diverse genotypes that could be produced by better combinations of important yield and yield contributing traits.…”

Heterosis for Yield and Yield Components in Okra (Abelmoschus esculentus (L.) Moench)

“…Since then, heterosis for yield and its components were extensively studied. Several research workers have reported occurrence of heterosis in considerable quantities for fruit yield and its various components (Venkataramani, 1952;Joshi et al, 1958;Partap and Dhankar, 1980;Elangovan et al, 1981;Partap et al, 1981;Mehta et al, 2007;Weerasekara et al, 2007;Jindal et al, 2009). The ease in emasculation and very high percentage of fruit setting indicates the possibilities of exploitation of hybrid vigour in okra.…”