Hybrid breeding for fall armyworm resistance: Combining ability and hybrid prediction.

ABSTRACT: Fall armyworm (FAW, Spodoptera frugiperda) emerged as a major lepidopteran pest destroying maize in sub-Saharan Africa. A diallel mating design was used to generate 210 experimental hybrids from 21 lines. Experimental hybrids and four checks were evaluated in two locations. Commercial checks suffered higher foliar and ear damage compared to the top 15 hybrids. Mean squares associated with the genotypic variation were higher than genotype-by-environment interactions for foliar and ear damage traits. Heritabilities were moderate to high. Significant correlations were observed between grain yield (GY) with ear rot (-0.54) and ear damage (-0.45). Positive and significant GCA effects were observed for GY in seven parental lines, which were developed from multiple insect resistance breedi

SUBMITTER: Kamweru I 

PROVIDER: S-EPMC11737609 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature