alexa Possible Association Levels between Fertilizer (300 kg/Ha NPK) Application and Fungal Incidence and Viability of Stored Maize Seeds
ISSN: 2157-7471

Journal of Plant Pathology & Microbiology
Open Access

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Research Article

Possible Association Levels between Fertilizer (300 kg/Ha NPK) Application and Fungal Incidence and Viability of Stored Maize Seeds

Sobowale AA1*, Aduramigba AO2 and Egberongbe HO3

1Department of Plant Science and Applied Zoology, Olabisi Onabanjo University, P.M.B. 2002, Ago-Iwoye, Ogun State, Nigeria

2Department of Crop Protection and Environmental Biology, University of Ibadan, Ibadan, Nigeria

3Department of Microbiology, Olabisi Onabanjo University, P.M.B. 2002, Ago-Iwoye, Ogun State, Nigeria

*Corresponding Author:
Sobowale AA
Department of Plant Science and Applied Zoology
Olabisi Onabanjo University
P.M.B. 2002, Ago-Iwoye
Ogun State, Nigeria
E-mail: [email protected]

Received date: November 17, 2012; Accepted date: January 28, 2013; Published date: February 02, 2013

Citation: Sobowale AA, Aduramigba AO, Egberongbe HO (2013) Possible Association Levels between Fertilizer (300 kg/Ha NPK) Application and Fungal Incidence and Viability of Stored Maize Seeds. J Plant Pathol Microb 4:163. doi:10.4172/2157-7471.1000163

Copyright: © 2013 Sobowale AA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

The effect of application of 300 kg/ha NPK fertilizer on viability of maize (Zea mays) seeds and incidence of fungi in maize seeds was examined. Fertilizer application was done 2 weeks after planting. Control experiment had no fertilizer application. Maize cobs were harvested 11 weeks after fertilizer application and brought into the laboratory. Plating of seeds and incubation was done for five days and repeated for four weeks. Petri plates were later scored for viability and fungal incidence. Data obtained were subjected to ANOVA (Analysis of Variance) using Generalized Linear Model (SAS). Isolated fungi included F. verticillioides, Fusarium species, A. flavus, and A. niger. For viability, F values for model (P>0.0004) and week (P>0.0001), were highly significant. Viability of treated maize seeds increased significantly at higher weeks of storage (p=0.01) but not significantly different from control (p=0.05). Incidence of all
isolated fungi in treated seeds increased significantly at higher weeks of storage. Incidence of Fusarium species (p=0.01), and A. flavus (p=0.05) in treated seeds were significantly lower than in control. For all isolated fungi, F values for week (P>0.0001), fungus (P>0.0001), treatment (P>0.0003), interaction between treatment and fungus (P>0.0001), and interaction between week and fungus (P>0.0001) were highly significant. Fusarium spp. including F. verticillioides and A. flavus (p=0.01) were prevalent in the stored seeds. Farmers need to pay continuous attention to appropriate measures of NPK fertilizer application, for yield improvement and reduction in fungal incidence. They may be advised to use seeds stored under appropriate conditions for appropriate length of time for planting.

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