Combining ability of recombined F4 papaya lines: a strategy to select hybrid combination

The growing demand for quality of papaya by the domestic and international markets requires development genotypes that are capable incorporating traits, such as high yield fruit quality. This study estimated genetic parameters specific combining ability F4 lines crossed to SS-72/12 tester identify with higher value hybrid production. We evaluated 169 treatments consisting 62 topcross combinations, 97 F5 lines, 10 controls in a 13 × lattice design five replicates two plants per plot. following traits were evaluated: plant height (PH), stem diameter (SD), first-fruit insertion (FFIH), number marketable fruits (NMF), deformed (NDF), fruitless nodes (NFN), average weight (FW), (YLD). Differences p < 0.05 found most evaluated. estimates indicate hybrids formed cross between promising, considering multiple traits: UCLA08-088, UCLA08-101, UCLA08-071, UCLA08-014, UCLA08-025, UCLA08-028, UCLA08-122, UCLA08-055, UCLA08-026, UCLA08-092. These meet demands may be available producers new cultivars.