Abstract
The coconut palm (Cocos nucifera Linn) is undoubtedly the most economically important species in the palm family of Areacacea. Coconut meal is solely prepared from the coconut seed which, has been found to be attacked by several disease causing microorganisms especially <i>Ceratocysis paradoxa</i>, a fungus that causes the devastating Bole rot disease. The study is designed to assess the storage stability of coconut seed by applying bioorganic extracts of <i>Mangifera indica</i> on the bole rot pathogen, <i>Ceratocysis paradoxa</i>. Four different concentrations (3, 6, 9 and 12 %) of the stem and root extracts of <i>M. indica</i> were obtained using a fair-fold sterile cheese cloth and tested on the fungus cultured on plates of Sabouraud Dextrose Agar (SDA) medium. Data obtained was analysed using the two-way Analysis of Variance (ANOVA). The result showed significant fungal mycelial growth inhibition with the 9% root extract concentration than the stem extracts concentrations. The antifungal properties of M. indica root extract can be further harnessed, processed and packaged as one of the natural bioorganic alternatives to chemical fungicides.
Highlights
The Coconut palm (Cocus nucifera Linn) is a member of the palm family Arecaceae
In Nigeria, the coconut bole rot disease is commonly caused by the fungus Ceratocysis paradoxa [5]
The infected coconut seed (Cocus nucifera) showing symptoms of Ceratocysis paradoxa was collected from Deeyor Community in Gokana Local Government Area of Rivers state and brought to the Biology Research Laboratory, Ignatius Ajuru University of Education, Rumuolumeni, Port Harcourt for isolation of the pathogen and fungi toxicity test
Summary
The Coconut palm (Cocus nucifera Linn) is a member of the palm family Arecaceae It is undoubtedly the most economically important species in the family Arecaceae [1], and the most useful palm in the agrarian economy of many nations worldwide; providing food, drink, shelter and raw materials for industries [2]. It is used as an ornament and food crop, providing oil, coconut milk, fiber from the hust, palm wine and timber for furniture and construction [3]. In Nigeria, the coconut bole rot disease is commonly caused by the fungus Ceratocysis paradoxa [5]
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