Antimicrobial Effects of Four Plant Extracts against Post Harvest Spoilage Fungi of Yam (Dioscorea rotundata Poir)
Journal Title: International Journal of Plant & Soil Science - Year 2016, Vol 12, Issue 3
Abstract
This study investigated the effects of plant extract on fungal pathogens responsible for yam rot in storage. Among the eight fungal pathogens isolated from yams with symptoms of post-harvest rot, the inhibitory effects of four plant materials on four of these organisms (Fusarium solani, Aspergillus niger, Botryodiplodia theobromae and Rhizopus stolonifer) with the highest prevalence were examined. Phytochemicals test of these plant materials showed the presence of alkaloid, flavonoid, glycosides, saponin and tannins at different quantities. The pathogenicity test revealed that all the organisms tested were pathogenic on healthy yam tubers with Aspergillus niger being the most pathogenic. All the plant extracts inhibited the growth of the test organisms at varying degrees. The degree of inhibition was dependent on concentration of extract, extraction medium and the test organism. The highest inhibitory values were obtained from ethanol extracts of Moringa oleifera and Azadirachta indica at 7.5% and 10.0% concentration each, while Gongronema latifolium and Xylopia aethiopicum gave lower inhibitory values. This suggests that Moringa oleifera and Azadirachta indica are good bio killers and their biological active ingredients can be exploited for the control of yam rot.
Authors and Affiliations
C. A. Anukwuorji, Chukwuma Maureen Obianuju, R. O. Ezebo, C. L. Anuagasi
Keywords
Related Articles
- EP ID EP351474
- DOI 10.9734/IJPSS/2016/27718
- Views 106
- Downloads 0
Response of Common Bean (Pharsalus vulgaris L.) Cultivars to Combined Application of Rhizobium and NP Fertilizer at Melkassa, Central Ethiopia
Soil fertility is one of the factors limiting the production of common bean in Ethiopia. Thus, field experiment was conducted to assess the effect of Rhizobium and NP fertilizers combination on nodulation, growth, yield...
The Impact of Phosphorous Applications and Incubation Periods on P- Desorption Characteristics with Successive DMT-HFO-P Extractions on P Fixing Soils
Aim: The overall objective of this study was to establish the rates and how much of the transformed or fixed Phosphorus can be available to plants over time, having determined the extent of Phosphorus fixation by both Ru...
Investigating the Morphophysiological Indices of Lambsquarters (Chenopodium album L.) in Competition with Corn (Zea mays L.)
In order to study the morphophysiological characteristics of lambsquarters in competition with corn, an experiment was conducted in Varamin, Iran in 2012. The experiment was conducted in a randomized complete block desig...
Soil Water Conservation Methods Affected Growth of Sorghum Intercropped with Cowpea in Different Locations of Western Sudan
Place and Duration of Study: Farmers practice different cropping systems with different cultural practice to increase productivity and sustainability. Field experiments were conducted in two locations (Elfoula and Babano...
Rapid Field Technique for Soil Salinity Appraisal in North Nile Delta Using EM38 through Some Empirical Relations
Diagnosis of soil salinity and its spatial variability is required to establish control measures in irrigated agriculture. Soil salinity can vary temporally and spatially due to dynamic nature of soluble salts. For these...