Formulation of bacterial consortium for improvement growth and yield of maize (Zea mays L.)

Abstract

Plant growth-promoting bacteria (PGPB) have become an important subject of research to increase maize production. The PGPB consortium should provide more benefits than single or dual inoculation. This study aimed to investigate the effect of a PGPB consortium on improving maize growth and yield. The field experiment used a split-plot design. The main plot consisted of three maize varieties (Talenta, Pertiwi-3, and Bisma), and the subplot consisted of three formulations of PGPB consortia [endophytic bacteria isolates, <em>Acetobacter</em> sp., cellulolytic, and ligninolytic (F1); endophytic bacteria isolates<em>, </em><em>Azospirillum </em>sp., cellulolytic, and ligninolytic (F2); and endophytic bacteria isolates, cellulolytic, ligninolytic, <em>Acetobacter </em>sp., and <em>Azospirillum </em>sp. (F3)] and one control. PGPB consortia formulation did not influence maize growth significantly, but maize varieties did. Pertiwi-3 showed the highest value in all growth variables, followed by Bisma and Talenta, respectively. The effect of PGPB consortia formulation upon ear fresh and dry weight depends upon the maize variety, and Pertiwi-3 showed the highest value in yield variables. PGPB consortia formulation 2 was the most effective to apply for Pertiwi-3 cultivation, while PGPB consortia formulation 3 produced higher yields for Talenta and Bisma. These findings indicated that specific PGPB formula could improve the yield for specific maize varieties.

Growth and Yield Responses of Zea mays to Different Granule Biofertilizer Applications

“…However, the continuous and unbalanced use of inorganic fertilizers results in damage to soil structure, compaction, decreased nutrient content, environmental pollution due to accumulation of chemical residues, and disruption of the growth of microorganisms in the soil [7][8][9]. Therefore, it is necessary to use nanotechnology biofertilizers produced from microorganisms of the genus Pseudomonas, Enterobacter, Azospirilum, Azotobacter, Burkholderia, Bacillus and Serratia which can cooperate with plants in nutrient absorption as a Plant Growth Promoting Rhizobacteria (PGPR) [10][11][12][13][14].…”

Optimization of culture medium and bioformulation of rhizobial actinomycetes to enhance soybean plant growth

“…Bioformulation is a mixture of active ingredients made with inert (inactive) substances in a formulated product. In a bioformulation, it is also possible to mix and combine several PGPR as a consortium (Ikhwan et al 2021). Unfortunately, many bioformulation products are ineffective due to inadequate or poor-quality formulations, including poor compatibility and stability of the carriers (Vassilev et al 2020).…”