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Abstract
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Article Information:
Basil (Ocimum basilicum) Genetic Variability and Viral Disease Assessment in Nigeria
O.D. Ojo, O.S. Adebayo, O. Olaleye and U. Orkpeh
Corresponding Author: O.D. Ojo
Submitted: 2011 March, 05
Accepted: 2011 April, 07
Published: 2012 January, 25 |
Abstract:
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The study aims at assessing Basil’s genetic phenotypic variability and viral disease incidence in
Nigeria for sustainable pathological interventions. Basil (Ocimum basilicum) is important for it’s medicinal and
nutritive value. It is highly adaptable as a potential crop in the tropics and could therefore enhance the food
security of sub Saharan Africa nations. Germplasm seed evaluation and characterization was therefore carried
out from the nationwide National Horticultural Research Institute (NIHORT) seed collection survey to expand
NIHORT basil genetic base. The field layout was completely randomized design with five replications. The
treatments were: O. basilicum, O. gratissimum and the local basil. Treatments were randomly allocated per
replication. There were significant phenotypic differences in the O. basilicum variety. These differences were
observed in the plant coloration ranging from deep to light purple coloration of stem, leaf, leaf vein and petiole.
Our observations also revealed for the first time significant tolerance to Venial Mottle Mosaic Virus (VMMV)
in the purple colored compared to the green O. basilicum in the early stages of growth till 50% anthesis. This
is the first report of this observation in the African continent. Tolerance to VMMV symptoms increased
significantly (LSD 5%) with purplish coloration. We concluded that inducement of purplish coloration in Basil
through breeding might improve tolerance to VMMV and thereby increase market value of Basil with
sustainable pathological interventions.
Key words: Basil, quality, variety, variability, virus disease, ,
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Cite this Reference:
O.D. Ojo, O.S. Adebayo, O. Olaleye and U. Orkpeh, . Basil (Ocimum basilicum) Genetic Variability and Viral Disease Assessment in Nigeria. Asian Journal of Agricultural Sciences, (1): 1-4.
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ISSN (Online): 2041-3890
ISSN (Print): 2041-3882 |
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