Effectiveness of PGPR Variety towards Quantity Improvement of Root Nodule in Mung Bean Cultivar (Vigna Radiata L.)

International Journal of Research and Innovation in Applied Science (IJRIAS) | Volume VI, Issue X, October 2021|ISSN 2454-6194

Effectiveness of PGPR Variety towards Quantity Improvement of Root Nodule in Mung Bean Cultivar (Vigna Radiata L.)

Lestari MP Alibasyah^1*, Mahfudz², Bahrudin², Astija^3
1Postgraduate Doctor of Agricultural Sciences, Tadulako University, Jl. Soekarno-Hatta Km 09, Palu 94118, Indonesia
²Department of Agroecotechnology, Faculty of Agriculture, Tadulako University, Jl. Soekarno-Hatta Km 09, Palu 94118, Indonesia
³Department of Natural Education Science, Faculty of Teacher Training and Education Science, Tadulako University, Jl. Soekarno-Hatta Km 09, Palu 94118, Indonesia
*Corresponding Author

Abstract: The enhancement of mungbean production has a vital role in supporting nutritious foods supply for human beings and sustaining soil productivity and fertility. Fixation bacteria that occupied symbiotically with legumes’ root was also addressed as a nodulating root bacteria founded in PGPR (Plant Growth Promoting Rhizobacteria). Rhizobacteria play a role as natural fertilizer is proficient at ameliorating N availability in the plant, which could keep up legume productivity. The rhizobacteria stimulation is affected by its harmonious with plant cultivar. This research is experimental research to pursue the appropriate PGPR isolate with mungbean cultivar using a comprehensive random layout with a factorial scheme. The treatment in this research used a combination of two factors, precisely a cultivar factor that consists of three samples, k1 (Vima 1 Cultivar), k2 (Vima 2 Cultivar), k3 (Vima 3 Cultivar) and PGPR, which consist of r0 (without PGPR), r1 (Bamboo root), r2 (Mungbean root) and r3 (Sensitive Plant root) with three repetitions for each treatment. The outcome of this research showed a significant difference between cultivar and PGPR type through the quantity of root nodules enhancement (p < 0.05). By the amount of root nodule, demonstrated that each cultivar has one kind of PGPR which escalate the number of root nodule with the highest is at K3R3 treatment in 4 weeks after planting, 6 weeks after produced and 8 weeks after a planted period with 17.67, 18.33 dan 41.33 nodules respectively.

Keywords: Effectiveness, PGPR, Number of Root Nodule, Cultivar, Mungbean, Quality of Root Nodule

I. INTRODUCTION

Mung bean is a short-lived annual plant has a high competitive ability, grows on all types of agricultural soil and is able to adapt widely in various areas with hot climates. Until now, the demand for green beans, especially in Indonesia, continues to increase but is not followed by the amount of production (Audrey et al., 2021).

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