Nwosu Et Al

Nwosu et al



Greener
Journal of  Agricultural Sciences


Vol. 3 (5), pp.
391-395, May 2013.


 ISSN: 2276-7770 



Research

Paper



Manuscript Number:

031913534

 



Cross-compatibility and F1 Reproductive
Potential of Cultivated Cowpea Varieties and a Wild
Relative (Subsp. unguiculata var. spontenea)

 



*1Nwosu D. J., 2Aladele S., 3Adeosun
J. O., 4Nwadike C and 


5
Awa E. N.

 

1Plant
Genetic Resources Unit, National Centre for Genetic
Resources and Biotechnology (NACGRAB), Moor Plantation,
Ibadan-Nigeria.

2Plant
Genetic Resources Unit,
National Centre for Genetic Resources and
Biotechnology (NACGRAB), Moor Plantation, Ibadan-Nigeria.

3School
of Agriculture, Abubakar Tatari Ali Polytechnic, Bauchi-Nigeria.

4Forestry
Research Institute of Nigeria, Federal college of
Forestry, Jos P.M.B 2019. Jos-Plateau State. Nigeria.

5Faculty
of Plant Science and Biotechnology, University of Port
Harcourt,
Port Harcourt,


Rivers State-Nigeria.

 

Emails and Phones: 2sundayaladele @ yahoo mail. com: 3adeosun_oluwole @ yahoo. com 

4chrisnwadike @ ymail. com 5lizzy_uchyl83 @ yahoo. com:

  



*
Corresponding
Author’s Email:1olaraich75 @ yahoo mail. com

Abstract:

A
hybridization programme that potentially exploits the
variability existing in the wild African germplasm of V.
unguiculata and cultivated cowpea was performed. Four
cultivated cowpea (Achi shuru, Ife Brown, Kanannado and
Zebra bean) were crossed to their wild relative subsp.
unguiculata
var. spontanea to ascertain their
cross compatibility, reproductive potential and possible
heterosis in the F1 generations. Results show
that the cultivated varieties hybridized relatively well
with their wild relative with pod set of 40.8% to 46.7%. F1
hybrid plants also showed high heterosis in plant
height and number of leaves and produced viable seeds. These
results are indications of a good reproductive potential of
the hybrids suggesting that the wild relative could be used
in hybridization programmes for improvement of cultivated
populations.

 


Keywords: Cowpea, F1 hybrids,
Cross-compatibility, Spontanea, Wild.


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