Assessment of Genetic Variability and Heritability Analyses in Sugarcane Clones Obtained by Fuzz (True Seed) at Northern of Côte d’Ivoire
Oura Otchou Jean-Didier Thierry *
Research and Development Department, SUCAF CI/SOMDIAA, Ferkessédougou, BP 150 RCI, Côte d’Ivoire
Kouamé Konan Didier
University of Félix Houphouët Boigny (UFHB), Abidjan Cocody, UFR (Faculty) of Biosciences, Côte d’Ivoire
Péné BI Crepin
Research and Development Department, SUCAF CI/SOMDIAA, Ferkessédougou, BP 150 RCI, Côte d’Ivoire
*Author to whom correspondence should be addressed.
Abstract
Sugarcane is the main sugar producing a crop in Côte d’Ivoire. However, improvement of this crop through breeding is limited due to the lack of genetic diversity. Therefore, genetic variability and diversity assessment are necessarily important for the sugarcane clones obtained by FUZZ (True Seed). The experiment was conducted with 47 sugarcane clones at Northern of Côte d'Ivoire (SUCAF CI), Ferkessédougou, during 2015-2016 to 2016-2017, following randomised complete block design (RCBD). Data were collected on different growth and yield contributing traits. %Flowering, Number of stem on 3 meters, stem diameter and %Brix exhibited a high genotypic coefficient of variation and phenotypic coefficient of variation. The medium phenotypic coefficient of variation (PCV) and genotypic coefficient of variation was observed for stem height. Based on the traits studied the stem height, stem diameter and % Brix have a high heritability value estimate excepted a number of stem on 3 meters and %Flowering showed low heritability. Number stem on 3 meters showed a negative correlation with stem diameter and positive correlation with %Brix. It was observed that stem height had a negative correlation with %Brix and positive correlation with %Flowering. Also, it was observed a negative correlation between %Brix and %Flowering. Results indicate that the genotypes should be selected on the basis of a number of stem on 3 meters, %Brix, stem diameter and %Flowering for future selection to get higher sugar yield.
Keywords: Sugarcane clone, genetic diversity, phenotypic diversity, heritability, SUCAF CI