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VOL. 5, ISSUE 4 (2023)
Inheritance of seedcoat colour in wild and landrace genotypes of cowpea grown in Bauchi, Nigeria
Authors
N N Joshua, O A T Namo
Abstract
For increased value addition and preference of the cowpea grain, the
need to determine the basic sources of genes conditioning seed coat colour and
colour patterns in natural population is desirable. Screen house and field
evaluation studies involving landrace cowpeas and their wild relative (Dekindtiana
var. pubescens) were carried out in Tafawa Balewa and Bar Arewa in
Bauchi northern guinea agroecology of Nigeria, to study the inheritance of seed
coat colour in cowpea. 30 genotypes of cowpea, comprising 10 parents, nine F1,
two backcrosses and nine F2 were advanced from collection
and hybridization trial. These were laid out in a randomized complete block
design with three replications in the wet season of 2018. The parental
genotypes bred true to type and all the F1 plants of the nine
crosses had 1Black: 1Black spotted with brown within locules of a single pod irrespective
of the parental seed coat colour. The backcrosses and the F2 population
in all the crosses had plants with seed coat colour and colour patterns in the
range of five to twelve. The results unveils the genetic bases of seed coat
colour in cowpea, where, early introgression of genes between landrace cowpeas
and their wild relative (dekindtiana var. pubescens) might have accounted
for the varying cowpea seed coat colour and colour patterns observed in natural
populations, these can deliberately be developed as options for researchers,
growers and consumers preference.
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Pages:85-91
How to cite this article:
N N Joshua, O A T Namo "Inheritance of seedcoat colour in wild and landrace genotypes of cowpea grown in Bauchi, Nigeria". International Journal of Agriculture and Plant Science, Vol 5, Issue 4, 2023, Pages 85-91
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