Assessment of hybrid vigour, dominance effect and hybrids regeneration potential in the genus Citrullus
Chia Michelle Valérie Angui,
Kouamé Kevin Koffi,
Auguste Emmanuel Issali,
Bi Irié Arsène Zoro
Affiliations
Chia Michelle Valérie Angui
Unité de Formation et de Recherche des Sciences de la Nature, Université Nangui Abrogoua (formerly Université d’Abobo-Adjamé), 02 BP 801, Abidjan 02, Côte d’Ivoire; Corresponding author.
Kouamé Kevin Koffi
Unité de Formation et de Recherche des Sciences de la Nature, Université Nangui Abrogoua (formerly Université d’Abobo-Adjamé), 02 BP 801, Abidjan 02, Côte d’Ivoire
Auguste Emmanuel Issali
Ministère de la Recherche Scientifique et de l’Innovation Technologique, République du Congo, National Higher School of Agronomy and Forestry, Marien NGOUABI University, Congo-Brazzaville
Bi Irié Arsène Zoro
Unité de Formation et de Recherche des Sciences de la Nature, Université Nangui Abrogoua (formerly Université d’Abobo-Adjamé), 02 BP 801, Abidjan 02, Côte d’Ivoire
The current research was directed to explore hybrid vigour for hybrids resulting from crosses among six genotypes of the genus Citrullus, including C. mucosospermus. For such purpose, the mid parent heterosis and the best parent heterosis were assessed. Non parametric method related to homogeneity Chi-square at 5 % likelihood was applied to compare the regeneration potential of progenies. Student's parametric test at 5% was used to separe two means. Six parental genotypes and 16 hybrid families were evaluated for heterosis. The results showed a heterosis effect for all the characters studied nevertheless, this one varies according to the crossing. The observed hybrid vigour would be due to a superdominance or partial dominance effect. In addition, progeny from crosses have the same regenerative potential on both study sites.
