Selected Actinomycetes as Potential Biostimulant of Eggplant (Solanum melongena L) in Mali

Adounigna Kassogué *

Laboratoire de Recherche en Microbiologie et Biotechnologie Microbienne (LaboREM-Biotech), FST /USTTB, BP E3206 Bamako, Mali.

Moussa Diallo

Laboratoire de Recherche en Microbiologie et Biotechnologie Microbienne (LaboREM-Biotech), FST /USTTB, BP E3206 Bamako, Mali.

Ibrahima Mallé

Laboratoire de Recherche en Microbiologie et Biotechnologie Microbienne (LaboREM-Biotech), FST /USTTB, BP E3206 Bamako, Mali.

Pauline Wendlassida Ouédraogo

UFR Sciences et Technologies, Université Norbert ZONGO de Koudougou, Burkina Faso.

Kangaye Amadou Diallo

Laboratoire de Recherche en Microbiologie et Biotechnologie Microbienne (LaboREM-Biotech), FST /USTTB, BP E3206 Bamako, Mali and Centre d’excellence en Bioinformatique, Faculté des Sciences et Techniques, Université des Sciences, des Techniques et des Technologies de Bamako, BP E3206 Bamako, Mali.

Balla Diakité

Laboratoire de Recherche en Microbiologie et Biotechnologie Microbienne (LaboREM-Biotech), FST /USTTB, BP E3206 Bamako, Mali.

Bakaye Doumbia

Institut d’Economie Rurale (IER), CRRA de Niono, Ségou, Mali.

Amadou Hamadoun Babana

Laboratoire de Recherche en Microbiologie et Biotechnologie Microbienne (LaboREM-Biotech), FST /USTTB, BP E3206 Bamako, Mali.

*Author to whom correspondence should be addressed.


Abstract

Aims: This study aims to formulate at least one efficient biostimulant based on actinomycetes that promotes good eggplant growth in Mali.

Study Design: The experimental design was a completely randomized block design with three replications and four treatments randomly distributed. The treatments were three Actinomycete strains (Act, S1 and St1) and a non inoculated control and the mode of application (inoculation or spraying) of these treatments were considered as blocking factor.

Place and Duration of Study: The trials were conducted in Bamako, in the Greenhouse of   the LaboREM-Biotech situated on the colline of Badalabougou.

Methodology: Eggplant seeds inoculated or not with Actinomyces sp. Ts1, Actinomyces sp. S1 and Actinomyces sp. Act; were randomly sown in plastic pots filled with approximately 2.50 kg of air-dried soil. The first block sown with coated seeds and the second with non-inoculated seeds and seedlings from them pulverized. Leaf length, leaf area, leaf diameter, leaf area, leaf fresh weight, leaf dry weight, root fresh weight, root dry weight, plant height and root length were determined.

Results: Eggplant seed inoculated with all the tested Actinomycetes strains had significantly enhanced leaf length, leaf diameter, leaf area, leaves fresh weight. The highest results were obtained with the strain Act, followed by strain St1. Sprayed treatment improved eggplant leaf length, leaf diameter, leaf area, leaves fresh weight, leaves dry weight, root fresh weight, root dry weight; compared to the coated treatment

Conclusion: Field application of actinomyctes may reduce production cost, by increasing eggplant growth and fruit yield while reducing production cost. The present work showed that Act and Ts1 using spray method were best suited for eggplant. Actinomyces sp. Act produced the highest leaf length, leaf diameter, leaf area, leaves fresh weight. Therefore, Actinomyces sp. Act is suggested as bioinoculant for eggplant.

Keywords: Eggplant, dicotyledonous plant, biostimulant, plant growth, vegetable-fruit


How to Cite

Kassogué, Adounigna, Moussa Diallo, Ibrahima Mallé, Pauline Wendlassida Ouédraogo, Kangaye Amadou Diallo, Balla Diakité, Bakaye Doumbia, and Amadou Hamadoun Babana. 2024. “Selected Actinomycetes As Potential Biostimulant of Eggplant (Solanum Melongena L) in Mali”. Microbiology Research Journal International 34 (11):38-47. https://doi.org/10.9734/mrji/2024/v34i111497.