TITLE:
Combining Ability and Heterosis of Sorghum (Sorghum bicolor L. Moench) Hybrids for Grain and Biomass Yield
AUTHORS:
Kidanemaryam Wagaw, Taye Tadesse
KEYWORDS:
Forage, GCA, Heterosis, Biomass, Hybrid, SCA
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.11 No.12,
December
31,
2020
ABSTRACT: This study was carried
out to estimate the magnitude of heterosis and combining abilities (general
& specific) for forage and over all grain yield performance of sorghum
hybrids. Even though, information on heterotic performance and combining ability of Ethiopian elite sorghum lines for
biomass, yield, and overall performance is too insufficient, there is ample
amount of sorghum elite lines developed through pedigree breeding. The result of ANOVA found out that mean
squares had to indicate a considerable amount of variability among the tested
genotypes for most traits. Parents and hybrids are drastically unique for all
traits besides thousand-grain weight, number of green leaves, and panicle
width. This found out that hybrids have a higher yield than Open pollinated
types (OPVs) parents. Hybrids, 106 × 94 (123.5%), 106 × 87 (80.4%), 106 × 78
(72.5%), 107 × 92 (74.5%) 107 × 99 (56.9%), and 107 × 104 (60.8%) have been
discovered maximum heterotic hybrids for yield in comparison to check. The
estimations of parental GCA effects confirmed that female 106 and males 79, 96,
94, and 81 had been excellent general combiners for biomass, yield and
associated traits. Primarily based on perse overall performance, heterotic response, and combining ability, female parent 106
and male parents 94, 102, and 90 were observed maximum performed. Those
parental lines could be used for hybrid and germplasm improvement.