scholarly journals Response of groundnut (Arachis hypogaea L.) to plant growth promoting Rhizobacteria in degraded soils

2018 ◽  
Vol 13 (17) ◽  
pp. 904-910 ◽  
Author(s):  
Kausar Rahina ◽  
Iqbal Choudhary Muhammad ◽  
Imran Akram Muhammad ◽  
Rashid Muhammad ◽  
Ur Rehman Obaid ◽  
...  
Keyword(s):  
Plant Growth ◽  
Arachis Hypogaea ◽  
Plant Growth Promoting Rhizobacteria ◽  
Arachis Hypogaea L ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Diversity, activity, and effectiveness of Rhizobium bacteria as plant growth promoting rhizobacteria (PGPR) isolated from Dieng, central Java

2021 ◽  
Author(s):  
Sri Purwaningsih ◽  
Dwi Agustiyani ◽  
Satjiya Antonius
Keyword(s):  
Plant Growth ◽  
Arachis Hypogaea ◽  
Congo Red ◽  
Plant Growth Promoting Rhizobacteria ◽  
Bromothymol Blue ◽  
Protease Enzyme ◽  
Arachis Hypogaea L ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Phosphate Solubilizing

Background and Objectives: This study was aimed to isolate Rhizobium spp., from the plant rhizosphere and to investigate their effects on the growth of peanut (Arachis hypogaea L.) as plant growth-promoting rhizobacteria (PGPR). Materials and Methods: The isolates were characterized using YEMA, YEMA + Congo Red, and YEMA + Bromothymol blue (BTB) media. The Rhizobium was tested qualitatively for their ability to produce indole acetic acid (IAA), siderophores, proteases, nitrogenases as well as phosphate solubilizing activity. A greenhouse experiment was carried out to elucidate the effect of Rhizobium inoculation on Arachis hypogaea L. growth. Results: Eleven isolates were obtained in YEMA media and they were red-pink in the YEMA + Congo Red media. The YEMA + BTB test showed that 2 isolates were slow-growing and the rest were fast-growing isolates. Seven isolates produced siderophores, 5 were capable of phosphate solubilizing, 9 isolates produced protease enzyme, 4 isolates could produce IAA, and 7 isolates could fix nitrogen. The B1 and the combination of some high trait-isolate treatments in Y gave the best results on Arachis hypogaea L. growth. Conclusion: These isolates can be developed as biological fertilizer agents for the peanut plant.

scholarly journals Uji Efektivitas Saat Pemberian dan Konsentrasi PGPR (Plant Growth Promoting Rhizobacteria) terhadap Produksi dan Mutu Benih Kacang Tanah (Arachis hypogaea L.)

2017 ◽  
Vol 1 (2) ◽  
pp. 174-184 ◽  
Author(s):  
Nailul Marom ◽  
FNU Rizal ◽  
Mochamat Bintoro
Keyword(s):  
Plant Growth ◽  
Arachis Hypogaea ◽  
Plant Growth Promoting Rhizobacteria ◽  
Arachis Hypogaea L ◽  
Plant Growth Promoting ◽  
Growth Promoting

Produksi dan mutu benih kacang tanah (Arachis hypogaea L.) dapat ditingkatkan dengan menggunakan PGPR (Plant Growth Promoting Rhizobacteria). Tujuan dari penelitian ini adalah  untuk mengetahui produksi dan mutu benih kacang tanah dengan perbedaan saat pemberian dan perbedaan konsentrasi PGPR. Penelitian ini dilaksanakan pada bulan Agustus sampai November 2016 dengan Rancangan Acak Kelompok (RAK) dengan 2 faktor. Faktor pertama adalah saat pemberian PGPR terdiri dari saat perendaman (W1), saat tanam (W2) dan saat fase vegetatif (W3). Faktor kedua adalah konsentrasi PGPR yang terdiri dari 0 ml/l (K0), 7,5 ml/l (K1), 10 ml/l (K2), dan 12,5 ml/l (K3). Parameter yang diamati adalah pertambahan tinggi tanaman, umur berbunga rata-rata, jumlah polong per rumpun tanaman, berat basah polong per rumpun tanaman, berat kering polong per rumpun tanaman, bobot 100 butir benih, produksi polong kering per hektar, daya berkecambah benih, Kecepatan tumbuh Benih, Dan keserempakan tumbuh benih. Hasil penelitian menunjukkan bahwa perlakuan terbaik adalah konsentrasi PGPR 12,5 ml/l yang memberikan pengaruh nyata sampai sangat nyata pada parameter pertambahan tinggi tanaman pada fase vegetatif (15 HST sampai 30 HST), pertambahan tinggi tanaman pada stadium pembentukan polong ( 30 HST sampai 45 HST), umur berbunga rata-rata, berat basah polong per rumpun, berat kering polong per rumpun, bobot 100 butir benih, dan produksi polong kering per hektar.

Plant Growth–Promoting Methylobacterium Induces Defense Responses in Groundnut (Arachis hypogaea L.) Compared with Rot Pathogens

2006 ◽  
Vol 53 (4) ◽  
pp. 270-276 ◽  
Author(s):  
M. Madhaiyan ◽  
B. V. Suresh Reddy ◽  
R. Anandham ◽  
M. Senthilkumar ◽  
S. Poonguzhali ◽  
...  
Keyword(s):  
Plant Growth ◽  
Arachis Hypogaea ◽  
Defense Responses ◽  
Arachis Hypogaea L ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Pseudomonas fluorescens Pf7: A Potential Biocontrol Agent against Aspergillus flavus Induced Aflatoxin Contamination in Groundnut

2019 ◽  
pp. 1-7 ◽  
Author(s):  
M. Ravi Teja ◽  
K. Vijay Krishna Kumar ◽  
H. Sudini
Keyword(s):  
Plant Growth ◽  
Aspergillus Flavus ◽  
Plant Growth Promoting Rhizobacteria ◽  
Aflatoxin Contamination ◽  
Dual Culture ◽  
Arachis Hypogaea L ◽  
Potential Biocontrol Agent ◽  
Plant Growth Promoting ◽  
Growth Promoting

Aflatoxin contamination is a qualitative problem in groundnut (Arachis hypogaea L.) occurring at both pre-and post-harvest stages. These aflatoxins are secondary metabolites produced by Aspergillus flavus and A. parasiticus and have carcinogenic, hepatotoxic, teratogenic and immuno-suppressive effects. Use of plant growth-promoting rhizobacteria (PGPR) is a viable and sustainable option in managing aflatoxin problem in groundnut. Our present study is aimed at identifying a plant growth-promoting rhizobacteria (PGPR) strain with superior antagonistic abilities on A. flavus infection, aflatoxin contamination and to determine its mode of action. Ten native P. fluorescens isolates were isolated from groundnut rhizosphere and screened against A. flavus by dual culture and in vitro seed colonization (IVSC) assays. In dual culture and IVSC studies, Pf7 exhibited higher degree of antagonism on A. flavus (54% inhibition), inhibited its colonization and reduced aflatoxin contamination (27.8 µg kg-1) in kernels.

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