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    Abstract
2010 (Vol. 2, Issue: 1)
Article Information:

Effects of Leaf Extracts of Azadirachta indica and Chromolaena Odorata on Post Harvest Spoilage Fungi of Yams in Storage

R.N. Okigbo, C.A. Agbata and C.E. Echezona
Corresponding Author:  Okigbo Raphael N 

Key words:  Azadirachta indica, Chromoleana odorata, extract, rot, spoilage fungi, yam,
Vol. 2 , (1): Page No: 9-12
Submitted Accepted Published
2009 July, 21 2009 October, 07 2010 January, 05
Abstract:

Investigation was carried out to test the potency of some plant extracts for control of yam tuber rot caused mostly by Fusarium oxysporum, Asperigillus niger and Botryodiploidia theobromae which were isolated from rooten tissues of yam tubers obtained from National Root Crop Research Institute (N.R.C.R.I) Umudike, Nigeria. These organisms were isolated from stored yam tubers. They caused soft rot leading to tissue discoloration and production of foul smell from the rotted portion of the tuber. Extract used were obtained from two plant materials leaves of Chromolaena odorata and Azadirachta indica and the extracting solvent were ethanol and water. The extract of the plant material were found to be fungitoxc against the yam rot spoilage fungi that were tested. Azadirachta indica was found to inhibit organisms more than Chromoleana odorata. This study indicated that Azadiracta indica and Chromoleana odorata were able to suppress rot-causing fungi of yam. Therefore, they will serve as a good natural plant fungicide (Protectranct) against yam tubers in storage.
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  Cite this Reference:
R.N. Okigbo, C.A. Agbata and C.E. Echezona, 2010. Effects of Leaf Extracts of Azadirachta indica and Chromolaena Odorata on Post Harvest Spoilage Fungi of Yams in Storage.  Current Research Journal of Biological Sciences, 2(1): Page No: 9-12.
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