Impacts of Microbial Inoculants on the Growth and Yield of Maize Plant



Elizabeth T. Alori1, 2, *, Olubukola O. Babalola2, Claire Prigent-Combaret3
1 Department of Crop and Soil Sciences, Landmark University, Omu-Aran, Nigeria
2 Food Security and Safety Niche Area, Faculty of Natural and Agricultural Sciences, North-West University, 2735 Mmabatho, Mafikeng, South Africa
3 Rhizosphere team, UMR CNRS 5557 Microbial Ecology, Université Lyon, 1Villeurbanne, France

Abstract

Background:

The use of microbial inoculants holds a great promise to improve crop yield without the negative environmental and health hazard associated with chemical fertilizer.

Aim:

To investigate if Pseudomonas spp. (Pseudomonas kilonensis F113 and Pseudomonas protegens CHA0 strains) have promoting effects on vegetative growth and yield of different maize genotypes (viz. AFLATOXIN SYN 4W, TZB-SR, AFLATOXIN R SYN 2Y, AFLATOXIN SYN 3W and AFLATOXIN SYN-2Y) under different soil types.

Methods:

Both pot and field experiments were employed. Bacterialized seeds were sown (2 seeds/pot/stand).

Results:

Pot experiment showed that both the bacterial species significantly stimulated the growth of maize shoot length, stem girth, leaf length, root length and root weight. The effect of genotypes AFLATOXIN SYN 4W, TZB-SR, AFLATOXIN R SYN 2Y and AFLATOXIN SYN 3W are not significantly different from one another but AFLATOXIN SYN-2Y showed a significantly lower increase in the measured parameters. No significant difference was observed according to soil types. AFLATOXIN SYN 4W showed a significantly higher root weight while AFLATOXIN R SYN 2Y showed a significantly higher root length compared to the other maize genotypes. Moreover, Pseudomonas significantly increased maize growth and yield under field experiment. AFLATOXIN R SYN 2Y and AFLATOXIN SYN 4W showed a significantly higher yield than the other maize genotypes studied.

Conclusion:

We concluded that Pseudomonas kilogenensis F113 and Pseudomonas protegens CHA0 are potential biofertilizers.

Keywords: Biotechnology, Biofertilizers, Maize Gynotype, Microbial Inoculants, Pseudomonas spp., Soil.


Abstract Information


Identifiers and Pagination:

Year: 2019
Volume: 13
Publisher Item Identifier: EA-TOASJ-2018-44

Article History:

Received Date: 8/10/2018
Revision Received Date: 24/12/2018
Acceptance Date: 10/1/2019
Electronic publication date: 06/02/2019
Collection year: 2019

© 2019 Alori et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Correspondence: Address correspondence to this author at the Department of Crop and Soil Sciences, Landmark University, Omu-Aran, Nigeria; Tel: +2348063485837; E-mails: aloritope@yahoo.com, alori.elizabeth@lmu.edu.ng