TY  - JOUR
T1  - Heritability and Number of Genes Governing Pod Yield in West African Okra (<I>Abelmoschus caillei </I>(A.chev) Stevels
AU - , Adeniji AU - , Olawale Taiwo 
JO  - Agricultural Journal
VL  - 2
IS  - 4
SP  - 483
EP  - 486
PY  - 2007
DA  - 2001/08/19
SN  - 1816-9155
DO  - aj.2007.483.486
UR  - https://makhillpublications.co/view-article.php?doi=aj.2007.483.486
KW  - West African Okra
KW  -polygenic
KW  -additive gene action
KW  -generation means
KW  -pod yield and hybridization
AB  - Heritability, genetic action and number of genes moderating the inheritance of pod yield was investigated in 5 crosses of West African okra accessions. Parents with variation for pod yield were used in hybridization process. Generations developed (parents, F<SUB>1</SUB>, F<SUB>2</SUB> and BC<SUB>1</SUB> BC<SUB>2</SUB>) were planted for evaluation in a randomized complete block design with 2 replications. The results showed that the additive-dominance model was adequate in explaining the inheritance of pod yield. This was ascribed to a non significant estimate of A, B and C scaling tests. The results of the generation mean analysis indicated that the additive genetic effects (d) significantly accounted for a large proportion of variability observed for pod yield in the crosses evaluated. A partial dominance loci (H/D< 0.75) and over dominance loci (H/D>1.00) revealed an intermediate performance and the possibility of developing hybrids for pod yield. Narrow sense heritability estimates (sensus stricto) were low to moderate. An additive genetic effect suggests that selection among segregating population could provide an average improvement in the performance of pod yield in subsequent generations. The study indicated that the inheritance of pod yield was polygenic, thus safeguarding against genetic loss of pod yield in selection process.
ER  -