The Effect of PGPR (Plant Growth Promoting Rhizobacteria) and Amino Acids on The Productivity of Eggplant Crop

Abstract

Buah terung mengandung zat gizi yang cukup penting, seperti vitamin A, B, C, kalium, fosfor, protein, lemak, karbohidrat dan zat besi, sehingga tanaman terung sangat potensial dikembangkan secara intensif sebagai penyumbang yang cukup besar terhadap keanekaragaman bahan pangan bergizi bagi penduduk. Penelitian bertujuan mengetahui pengaruh interaksi antara perlakuan konsentrasi PGPR dan asam amino serta pengaruh masing-masing perlakuan konsentrasi PGPR dan asam amino terhadap produktivitas tanaman terung. Metode penelitian menggunakan Rancangan Acak Kelompok (RAK) faktorial, dengan dua faktor perlakuan dan 3 (tiga) kali ulangan. Faktor pertama konsentrasi PGPR (P), P1: 5 ml/liter, P2: 10 ml/liter, P3: 15 ml/liter. Faktor kedua konsentrasi Asam Amino (A), A1: 2 ml/liter, A2: 4 ml/liter, dan A3: 6 ml/liter. Perlakuan tersebut dikombinasikan dan diperoleh 9 kombinasi perlakuan. Analisis data menggunakan Analysist of Varians (Anova) dengan taraf signifikan 5%. Perlakuan yang berpengaruh nyata diuji lanjut dengan Duncan’s New Multiple Range Test ? 5% (DNMRT). Variabel yang diamati tinggi tanaman, diameter batang, jumlah buah, diameter buah dan bobot buah. Hasil penelitian diperoleh tidak terjadi interaksi antara perlakuan konsentrasi PGPR dan asam amino terhadap produktivitas tanaman terung. Perlakuan tunggal pemberian PGPR dan asam amino diperoleh pemberian PGPR 15 ml/liter dan asam amino 4 ml/liter merupakan perlakuan yang berpengaruh paling baik terhadap produktivitas tanaman terung.

Eggplant contains quite important nutrients, such as vitamins A, B, C, potassium, phosphorus, protein, fat, carbohydrates and iron, so that eggplant plants have great potential to be developed intensively as a significant contributor to the diversity of nutritious food for the population. The study aims to determine the effect of interaction between PGPR and amino acid concentration treatments and the effect of each PGPR and amino acid concentration treatment on eggplant plant productivity. The research method used a factorial Randomized Block Design (RAK), with two treatment factors and 3 (three) replications. The first factor is PGPR concentration (P), P1: 5 ml/liter, P2: 10 ml/liter, P3: 15 ml/liter. The second factor is Amino Acid concentration (A), A1: 2 ml/liter, A2: 4 ml/liter, and A3: 6 ml/liter. These treatments were combined and 9 treatment combinations were obtained. Data analysis used Analysis of Variance (Anova) with a significance level of 5%. The treatments that had a significant effect were further tested using Duncan's New Multiple Range Test ? 5% (DNMRT). The variables observed were plant height, stem diameter, number of fruits, fruit diameter and fruit weight. The results of the study showed that there was no interaction between the treatment of PGPR concentration and amino acids on eggplant plant productivity. The single treatment of PGPR and amino acids obtained PGPR 15 ml/liter and amino acids 4 ml/liter were the treatments that had the best effect on eggplant plant productivity.