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Abstract
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Article Information:
Crossability Studies in Cassava in the Coastal Savanna Zone of Ghana
W. Nunekpeku, H.M. Amoatey, V. Oduro and G.Y.P. Klu
Corresponding Author: W. Nunekpeku
Submitted: January 14, 2012
Accepted: March 02, 2012
Published: July 15, 2012 |
Abstract:
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Nine cassava (Manihot esculenta Crantz) accessions were artificially crossed in a pair-wise fashion,
in the coastal savanna agro-ecological zone in Ghana, to determine level of crossability and seed set as a guide
to future breeding programmer. Crossability among the accessions ranged from 0% (in AN x HO-008, LA x
HO-008 and AF x ME crosses) to 88% (in AS x AF crosses). For any pair of parents used, reciprocal crosses
exhibited significant (p≤0.05) differences in percent crossability. Seed set and embryo formation among crosses
varied from 0 to 100% and 40 to 100% respectively. High crossability did not necessarily translate into high
seed set or embryo formation as no direct relationship could be established between these variables. Variations
in crossability among the accessions are attributed to inherent genetic differences among the accessions and
the effect of reciprocal crosses.
Key words: Cassava, crossability, embryo formation, Manihot esculenta Crantz, seed set, ,
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Cite this Reference:
W. Nunekpeku, H.M. Amoatey, V. Oduro and G.Y.P. Klu, . Crossability Studies in Cassava in the Coastal Savanna Zone of Ghana. Asian Journal of Agricultural Sciences, (4): 236-241.
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ISSN (Online): 2041-3890
ISSN (Print): 2041-3882 |
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