Analysis heterotic pools for hybrid sorghum breeding across the West-African Savannah zones based on genetic diversity analysis
For this study, a set of hybrids (over 200) was developed using new 16 A (14 new and 2 checks) lines and R lines from different breeding programs and countries. These hybrids were evaluated for their combining ability (GCA and SCA) in mainly one location (Samanko) in 2015 and in 2 locations in 2016 (Samanko and Kolombada). In each location, the trials were implemented in 3 replications, 2 contrasted conditions (High P and Low P). Hybrids parents (corresponding B lines and R lines were included). For further identification of heterotic pools, around 288 accessions including landraces, B lines and R lines from Mali and Nigeria were sent to University of Hohenheim for genotyping using 20 SSRs markers.