The Effect of Several Rhizobacteria Consortia Formulation and Bacterial Density to the Growth and Yield of Five Maize Cultivars in Indonesia

Maize is one of the important crop so production improvement
is
must be done to sufficient the needs. Plant growth promoting
rhizobacteria has become a feasible, efficient and sustainable approach to
increase maize productivity. This study investigated the effect of several
rhizobacteria consortia formulations and bacterial density on the growth
and yield of five maize cultivars in Indonesia. The experiment was carried
out using a nested-split plot randomized complete block design (RCBD).
The treatments consisted of two rhizobacteria consortia formulation
(granule and liquid) as nested, four rhizobacterial density (0, 107, 108, and
109 cfu mL–1) as main plot, and five maize cultivars (Bisi 18, Bisi 2,
Pertiwi 3, Bisi 228, and Bisi 220) as subplot. The growth and yield data
were analyzed through ANOVA and by means using DMRT α 5 % to
determine the best treatment. Application of rhizobacteria consortia
formulation on five maize varieties did significantly affect the growth and
yield of maize although bacterial density did not showed the same results.
Rhizobacteria consortia with granule formulation appeared significantly
higher yield performance than liquid. Pertiwi 3 tended to produce higher
average yield than other varieties for both rhizobacteria consortia
formulation although the varieties did not significantly contribute on ear
weight variables.