Response of some New Chickpea Genotypes to Rhizobial Inoculation and Foliar Application with Plant Growth Promoting Rhizobacteria (PGPR)

Management of Collar Rot of Chickpea (Cicer Arietinum) byTrichoderma Harzianumand Plant Growth Promoting RhizobacteriaCollar rot (Sclerotium rolfsii) of chickpea (Cicer arietinum) is one of the devastating soil-borne diseases of fungal origin, due to which 10-30% yield loss is recorded annually according to severity of the disease. Management of collar rot of chickpea is not feasible in the absence of effective soil fungicides. However,Trichoderma harzianumand plant growth promoting rhizobacteria (PGPR) have shown high efficacy against this diseasein vitroas well as in the field. We usedT. harzianum(104, 106and 108spore/ml) and two PGPRs (Pseudomonas fluorescensstrain 4 andP. aeruginosa) as foliar spray with the fresh and heat inactivated microorganisms. Foliar application ofT. harzianum(108spore/ml) andP. fluorescensstrain 4 (108cfu/ml) showed maximum efficacy in reducing plant mortality as compared to the control. Foliar application of fresh-and heat-inactivated (121°C for 10 min)P. fluorescensstrain 4, andT. harzianumreduced 15-25% plant mortality butP. aeruginosashowed very little disease control of 10-15%. However, regarding plant growth promotion, it was observed that fresh-and heat-inactivatedP. fluorescensstrain 4 showed maximum efficacy followed by fresh and heat inactivatedP. aeruginosaandT. harzianumas compared to the control. The disease-controlling efficacy was also associated with the increase in phenolic acid synthesis in chickpea plants. The control of chickpea collar rot by biocontrol agents is safe and ecologically sound and appears to be a healthy approach to the disease control.

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Effect of plant growth promoting rhizobacteria (PGPR) on the healthy and productivity of soy bean plant

Planta Medica ◽

10.1055/s-0031-1282315 ◽

2011 ◽

Vol 77 (12) ◽

Cited By ~ 1

Author(s):

AB Salama ◽

ER Hamed ◽

HS Shehata

Keyword(s):

Plant Growth ◽

Plant Growth Promoting Rhizobacteria ◽

Bean Plant ◽

Plant Growth Promoting ◽

Growth Promoting

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Effect of Plant Growth Promoting Rhizobacteria (PGPR) on agronomic characteristic and root colonization in fennel

Planta Medica ◽

10.1055/s-0031-1282259 ◽

2011 ◽

Vol 77 (12) ◽

Cited By ~ 1

Author(s):

A Mirzaei ◽

R Naseri ◽

A Soleymanifard ◽

S Vazan

Keyword(s):

Plant Growth ◽

Root Colonization ◽

Plant Growth Promoting Rhizobacteria ◽

Plant Growth Promoting ◽

Growth Promoting ◽

Agronomic Characteristic

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Aplikasi Bacillus subtilis pada beberapa Bahan Organik terhadap Pertumbuhan dan Produksi Tanaman Cabai Rawit (Capsicum frutescens L.)

JURNAL AGRI-TEK Jurnal Penelitian Ilmu-Ilmu Eksakta ◽

10.33319/agtek.v21i1.69 ◽

2020 ◽

Vol 21 (1) ◽

pp. 14-19

Author(s):

Praptiningsih Gamawati Adinurani ◽

Sri Rahayu ◽

Nurul Fima Zahroh

Keyword(s):

Bacillus Subtilis ◽

Plant Growth ◽

Plant Growth Promoting Rhizobacteria ◽

Capsicum Frutescens ◽

Plant Growth Promoting ◽

Growth Promoting

Mikroba Bacillus subtilis merupakan agen pengendali hayati mempunyai kelebihan sebagai Plant Growth Promoting Rhizobacteria (PGPR) yaitu dapat berfungsi sebagai biofertilizer, biostimulan, biodekomposer dan bioprotektan. Tujuan penelitian mengetahui potensi B. subtilis dalam merombak bahan organik sebagai usaha meningkatkan ketersediaan bahan organik tanah yang semakin menurun. Penelitian menggunakan Rancangan Petak Terbagi dengan berbagai bahan organik sebagai petak utama (B0 = tanpa bahan organik, B1 = kotoran ayam, B2 = kotoran kambing, B3 = kotoran sapi) dan aplikasi B.subtilis sebagai anak petak (A0 = 0 cc/L, A1 = 5cc/L, A2 = 10 cc/L, Pengamatan meliputi variabel tinggi tanaman, indeks luas daun, jumlah buah per tanaman, berat buah per tanaman, dan bahan organik tanah. Data pengamatan dianalisis ragam menggunakan Statistical Product and Service Solutions (SPSS) versi 25 dan dilanjutkan dengan uji Duncan untuk mengetahui signifikansi perbedaan antar perlakuan. Hasil penelitian menunjukkan tidak terdapat interaksi antara bahan organik kotoran ternak dan konsentrasi B. subtilis terhadap semua variabel pengamatan. Potensi B. subtilis sangat baik dalam mendekomposisi bahan organik yang ditunjukkan dengan peningkatan bahan organik, dan hasil terbaik pada kotoran sapi (B3) dan konsentrasi B. subtilis 15 mL/L masing-masing sebesar 46.47 % dan 34.76 %. Variabel pertumbuhan tidak berbeda nyata kecuali tinggi tanaman dengan pertambahan tinggi paling banyak pada pemberian kotoran kambing sebesar 170.69 %.

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