Pemberian PGPR Indigen untuk Pertumbuhan Kacang Tanah (Arachis hypogaea L.) Varietas Lokal Tuban pada Media Tanam Bekas Tambang Kapur

Abstract

Peanut (Arachis hypogaea L.) cv. Tuban is one of the cultivated plants can be planted on limestone mines former because it has high adaptation to dry and alkali conditions. Biology, physics and chemistry of limestone mined land have low soil fertility. One of the efforts to improve its fertility is use an adaptive biofertilizer on the condition of the limestone former. The purpose of this study was to determine the potential use of PGPR from pioneer plants that grow on ex-limestone mines on vegetative growth of peanut (Arachys hypogaea L.) cv. Tuban in the limestone planting media. This study used a completely randomized design (CRD) with four treatments (25%, 50%, 75% and 100%) and one control (0%) each of five replications. The results of this study indicate that based on the MANOVA test giving various concentrations of PGPR does not have a significant effect on the height and number of plant leaves. While based on correlation statistical tests have a significant correlation to leaf color. The higher the PGPR concentration is given, the more green the leaf color will be, based on the Leaf Color Chart (LCC) scale.

The Potential of Heavy Metal Plumbum (Pb) Degradation Agents in Composted Raw Materials from Inked Paper Waste

“…sesuai dengan SNI 19-7030-2004 yaitu kurang dari 150 ppm. PGPR (Plant Growth Promoting Rhizobacteria) adalah sekelompok bakteri yang hidup di sekitar perakaran tumbuhan yang memiliki berbagai macam kemampuan diantaranya kemampuan dalam mengubah suatu senyawa kimia kompleks menjadi ion yang dapat diserap oleh tumbuhan dan membentuk fitohormon (Kurniahu et al, 2018). Kemampuan lain yang seringkali dimiliki oleh PGPR adalah kemampuan untuk memproteksi tumbuhan dari dampak negatif lingkungan berupa zat pencemar maupun keberadaan penyakit tumbuhan (Patel et al, 2016;Sriwulan et al, 2019).…”

Peanut Pods (Arachis hypogaea L.) In Ex-Mining Limestone Soil Enriched with Indigenous Bacteria

“…PGPR solution were obtained using the method based on Kurniahu et al (2018) by taking 5 sample points which each from the roots of pioneer plants (Pteris vittata, Imperata cylindrica, Zea mays, and Pennisetum purpureum) that grew in the land around the former limestone mine. 100 g, in the form of plant roots and surrounding soil.…”

“…This PGPR group of bacteria can produce phytohormones, mobilize nutrients, and control pathogens (Kurniahu, 2017). This PGPR group of bacteria can produce phytohormones, mobilize nutrients, and control pathogens (Kurniahu et al, 2018). In spurring plant growth, PGPR plays a role in providing absorbed nutrients for plants and producing hormones for plants as well as producing secondary metabolites which can be used as antagonisms to pests and plant diseases.…”

“…The use of PGPR pioneer plants from lime mining was reported to increase the growth of peanuts by 12 WAP (Week After Planting) in shady conditions (Sriwulan et al, 2018) and spur the growth of peanut plants for 6 WAP with the observed parameters. in the form of plant height, number of leaves, and leaf color (Kurniahu et al, 2018). However, research on the application of PGPR pioneer plants from limestone mining to the yield of peanut pods (A. hypogaea L.) var.…”