Microbial population changes in the rhizosphere of tomato Solanum Lycopersicum varieties during early growth in greenhouse


Citation

Chinakwe, EC and Ibekwe, VI and Nwogwugwu, UN and Onyemekara, NN and Ofoegbu J, J and Mike-Anosike, E and Emeakaraoha, M and Adeleye, S and Chinakwe, PO (2019) Microbial population changes in the rhizosphere of tomato Solanum Lycopersicum varieties during early growth in greenhouse. Malaysian Journal of Sustainable Agriculture (MJSA) (Malaysia), 3. pp. 23-27. ISSN 2521-2931

Abstract

The microbial population changes in the rhizosphere of two varieties of tomato: cherry and plum were studied. They were grown in a greenhouse for five weeks. Standard microbiological procedures were applied. Biochemical and cultural characteristics revealed the presence of Bacillus, Enterococcus, Staphylococcus, Rhizobium as bacterial species and Penicillium, Mucor and Saccharomyces as fungal species. Total Heterotrophic Bacterial Counts (THBC) ranged from 1.0 x 106⁶ to 4.8 x 10⁷ cfu/g; 7.0 x 10⁷ to 4.5 x 10⁹ cfu/g and 5.4 x 10⁷ to 3.0 x 10⁹ cfu/g for bare soil, rhizosphere soil of cherry tomato and rhizosphere soil of plum tomato respectively. Total Fungal Counts (TFC) were lower and ranged from 1.3 x 10⁶ to 6.5 x 10⁶ cfu/g, 1.2 x 10⁶ to 8.7 x 10⁶ cfu/g and 1.0 x 10⁶ to 1.2 x 10⁶ cfu/g for bare soil, rhizosphere soil of cherry tomato and rhizosphere soil of plum tomato respectively. The microbial succession pattern further revealed that Bacillus sp, Enterococcus sp, Rhizobium sp, Mucor sp and Saccharomyces sp were the predominant microorganisms present in bare soil and rhizosphere soils of cherry and plum tomatoes. The presence of plant growth promoting rhizobacteria e.g. Bacillus sp and Rhizobium sp, is of great advantage to the early growth of tomato plants as they play important roles in increasing soil fertility, plant growth , and suppression of phytopathogens for healthy plant development and sustainable agriculture.


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Abstract

The microbial population changes in the rhizosphere of two varieties of tomato: cherry and plum were studied. They were grown in a greenhouse for five weeks. Standard microbiological procedures were applied. Biochemical and cultural characteristics revealed the presence of Bacillus, Enterococcus, Staphylococcus, Rhizobium as bacterial species and Penicillium, Mucor and Saccharomyces as fungal species. Total Heterotrophic Bacterial Counts (THBC) ranged from 1.0 x 106⁶ to 4.8 x 10⁷ cfu/g; 7.0 x 10⁷ to 4.5 x 10⁹ cfu/g and 5.4 x 10⁷ to 3.0 x 10⁹ cfu/g for bare soil, rhizosphere soil of cherry tomato and rhizosphere soil of plum tomato respectively. Total Fungal Counts (TFC) were lower and ranged from 1.3 x 10⁶ to 6.5 x 10⁶ cfu/g, 1.2 x 10⁶ to 8.7 x 10⁶ cfu/g and 1.0 x 10⁶ to 1.2 x 10⁶ cfu/g for bare soil, rhizosphere soil of cherry tomato and rhizosphere soil of plum tomato respectively. The microbial succession pattern further revealed that Bacillus sp, Enterococcus sp, Rhizobium sp, Mucor sp and Saccharomyces sp were the predominant microorganisms present in bare soil and rhizosphere soils of cherry and plum tomatoes. The presence of plant growth promoting rhizobacteria e.g. Bacillus sp and Rhizobium sp, is of great advantage to the early growth of tomato plants as they play important roles in increasing soil fertility, plant growth , and suppression of phytopathogens for healthy plant development and sustainable agriculture.

Additional Metadata

[error in script]
Item Type: Article
AGROVOC Term: tomatoes
AGROVOC Term: soil
AGROVOC Term: rhizosphere
AGROVOC Term: growth
AGROVOC Term: microorganisms
AGROVOC Term: Bacteria
AGROVOC Term: Fungi
AGROVOC Term: Rhizobacteria
AGROVOC Term: soil fertility
AGROVOC Term: plant growth
Geographical Term: Nigeria
Depositing User: Mr. Khoirul Asrimi Md Nor
Date Deposited: 28 Apr 2026 04:01
Last Modified: 28 Apr 2026 04:01
URI: http://webagris.upm.edu.my/id/eprint/3860

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