Correlation Analysis of the Application of Three Types of Plant Growth Promoting Rhizobacteria (Mimosa Root, Bamboo Root, and Elephant Grass) Concentrations on the Growth of Shallot Seedlings (Allium ascalonicum L.)

Kiki Roidelindho, Nezly Nurlia Putri, Annabelle Syalomitha Giroth, Adrea OktaAdrea Oktavia Rachmawati Sabira

Abstract


The significance and role of shallots in fulfilling human consumption needs have driven farmers to optimize the growth and production of shallot plants. To maximize shallot growth, cultivation can be carried out by applying bio-fertilizers, particularly during the seedling phase. Bio-fertilizers act as specific nutrient binders or providers essential for plant growth and contain various microorganisms that enhance plant development and soil fertility. This study aims to examine the correlation between the application of three types of Plant Growth Promoting Rhizobacteria (PGPR) on the growth of shallot seedlings, with the objective of identifying the most effective type of bio-fertilizer for shallot seedlings. The research employed an experimental method using a factorial Randomized Block Design (RBD) with two factors. The first factor is the PGPR concentration, consisting of K1 = 10 ml/l, K2 = 20 ml/l, and K3 = 30 ml/l. The second factor includes S1 = Mimosa, S2 = Bamboo root, and S3 = Elephant grass. Each treatment combination was repeated three times, resulting in a total of 27 experimental units. The results showed a strong correlation between bulb weight and bulb count, with a correlation coefficient of 0.73. Meanwhile, the correlations between bulb weight and plant height, as well as between leaf length and leaf width, exhibited correlation coefficients of 0.01, indicating a weak relationship between these variables.


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