Vol. 11 No. 12 (2025): December
Open Access
Peer Reviewed

The Effect of the Composition of Planting Media and the Concentration of Plant Growth-Promoting Rhizobacteria (PGPR) on the Growth and Yield of Bird’s Eye Chili (Capsicum frutescens L.)

Authors

Imanda Setyawan , Juli Santoso , Saefurrohman

DOI:

10.29303/jppipa.v11i12.12966

Published:

2025-12-25

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Abstract

Chili pepper (Capsicum frutescens L.) is a high-value horticultural commodity, but its productivity is often hampered by the excessive use of chemical fertilizers. This study aims to evaluate the effect of planting medium composition and plant growth-promoting rhizobacteria (PGPR) concentration on the growth and yield of chili pepper. The study was conducted from May to August 2025 at the Kedungrejo Seed Garden, Madiun Regency, using a factorial Randomized Block Design (RAK) with two factors: planting medium (soil, soil + compost, soil + manure, and soil + compost + manure) and PGPR concentration (0, 8, 16, and 24 ml/L), each replicated three times. Significant interactions were found between planting medium and PGPR on plant height, number of leaves, and fruit weight. The combination of soil + manure with PGPR at doses of 8 and 16 ml/L produced the highest values ​​for fruit weight (up to 2.99 g) and number of leaves (44). Soil and manure alone also increased root weight and fruit number while accelerating flowering. PGPR at a dose of 16 ml/L significantly increased shoot dry weight and shortened the harvest period. This study demonstrates that combining organic media with PGPR can sustainably increase chili productivity.

Keywords:

Chili pepper Crop Yiel PGPR concentration Planting media composition

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Author Biographies

Imanda Setyawan, East Java “Veteran” National Development University

Author Origin : Indonesia

Juli Santoso, East Java “Veteran” National Development University

Author Origin : Indonesia

Saefurrohman, East Java “Veteran” National Development University

Author Origin : Indonesia

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How to Cite

Setyawan, I., Santoso, J., & Saefurrohman. (2025). The Effect of the Composition of Planting Media and the Concentration of Plant Growth-Promoting Rhizobacteria (PGPR) on the Growth and Yield of Bird’s Eye Chili (Capsicum frutescens L.). Jurnal Penelitian Pendidikan IPA, 11(12), 194–204. https://doi.org/10.29303/jppipa.v11i12.12966