Plant growth-promoting rhizobacteria suppressive to Phytophthora blight affect microbial activities and communities in the rhizosphere of pepper (Capsicum annuum L.) in the field

2012 ◽  
Vol 62 ◽  
pp. 88-97 ◽  
Author(s):  
Mee Kyung Sang ◽  
Ki Deok Kim
Keyword(s):  
Plant Growth ◽  
Capsicum Annuum ◽  
Plant Growth Promoting Rhizobacteria ◽  
Microbial Activities ◽  
Phytophthora Blight ◽  
Capsicum Annuum L ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Perlakuan Rizobakteri Pemacu Pertumbuhan Tanaman (RPPT) dengan Beberapa Tingkat Kerapatan Inokulum Rizobakteri Terhadap Viabilitas dan Vigor Benih Cabai Merah Kadaluarsa (Capsicum annuum L.)

2020 ◽  
Vol 4 (1) ◽  
pp. 229-238
Author(s):  
Dayang Rahmanita Simanjuntak ◽  
Halimursyadah Halimursyadah ◽  
Syamsuddin Syamsuddin
Keyword(s):  
Plant Growth ◽  
Capsicum Annuum ◽  
Seed Treatment ◽  
Dry Weight ◽  
Plant Growth Promoting Rhizobacteria ◽  
Seed Vigor ◽  
Inoculum Density ◽  
Plant Growth Promoting ◽  
Actinobacillus Suis ◽  
Growth Promoting

Abstrak. Biological seed treatment merupakan salah satu perlakuan benih menggunakan mikroorganisme seperti rizobakteri pemacu pertumbuhan tanaman (RPPT). Penelitian ini bertujuan untuk mengetahui jenis rizobakteri dan kerapatan inokulum yang dapat meningkatkan viabilitas dan vigor benih cabai kadaluarsa. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) pola faktorial dengan 2 faktor dan 3 ulangan. Faktor pertama adalah jenis rizobakteri (R) terdiri atas lima taraf yaitu R1: Necercia sp; R2:Bacillus polymixa; R3: Actinobacillus suis; R4: Azotobacter sp; R5: Pseudomonas capacia. Faktor kedua adalah kerapatan inokulum rizobakteri terdiri dari tiga taraf yaitu K1: 107 cfu/ml; K2: 108 cfu/ml; K3: 109 cfu/ml. Hasil penelitian ini menunjukkan bahwa perlakuan benih menggunakan rizobakteri jenis Necercia sp dengan kerapatan inokulum 108 cfu/ml nyata meningkatkan vigor benih pada tolok ukur  indeks vigor yaitu 40% dan Pseudomonas capacia dengan kerapatan inokulum 109 cfu/ml juga merupakan kombinasi perlakuan terbaik dalam meningkatkan berat kering kecambah normal yaitu 69,33 mg.Treatment Of Plant Growth Promoting Rhizobacteria (PGPR)With Multiple Levels of Rhizobacteria Inoculum Density On Viability and Vigor Of Expired Red Chilli Seeds (Capsicum annuum L.Abstract. Biological seed treatment is one of the seed treatment using microorganisms such as plant growth-promoting rhizobacteria (PGPR). This study aims to determine the type of rhizobacteria and inoculum density that can increase the viability and vigor of expired chili seeds. This research uses Completely Randomized Design (CRD) factorial pattern with 2 factors and 3 replications. The first factor is the type of rhizobacteria (R) consists of five levels, namely R1: Necercia sp; R2: Bacillus polymixa; R3: Actinobacillus suis; R4: Azotobacter sp; R5: Pseudomonas capacia. The second factor is the density of rhizobacteria inoculum consisting of three levels namely K1: 107 cfu/ml; K2: 108 cfu/ml; K3: 109 cfu/ml. The results of this study showed that the seed treatment using the Necercia sp-type rizobacteria with 108 cfu/ml inoculum density significantly increased the seed vigor on the vigor index benchmark of 40% and Pseudomonas capacia with 109cfu/ml inoculum density was also the best treatment combination in increasing dry weight normal sprout is 69,33 mg. 

Effects of plant-growth-promoting bacteria on growth and yield of pepper under limited nitrogen supply

2009 ◽  
Vol 89 (2) ◽  
pp. 349-358 ◽  
Author(s):  
F. M. Del Amor ◽  
I. Porras
Keyword(s):  
Plant Growth ◽  
Capsicum Annuum ◽  
Growth And Yield ◽  
Plant Growth Promoting Bacteria ◽  
Total N ◽  
Capsicum Annuum L ◽  
N Supply ◽  
Fluorescence Maximum ◽  
Plant Growth Promoting ◽  
Growth Promoting

The influence of plant-growth-promoting bacteria (Azospirillum brasilense and Pantoea dispersa) on sweet pepper plants (Capsicum annuum L.) under limited N supply was studied. Inoculation did not affect leaf CO2 assimilation, Ci/Ca (the ratio of the intercellular to the ambient CO2 concentration), concentration of chlorophylls, chlorophyll fluorescence (maximum quantum efficiency of PSII) or SPAD readings. Total plant dry weight was significantly reduced in both inoculated and non-inoculated plants when the N supply was reduced from 12 (control) to 7 mM, whilst the NO3− and total-N concentrations in the leaves were not significantly affected by inoculation. Inoculation did not affect marketable fruit yield or the pigments (chlorophylls, lycopene and β-carotene) and carbohydrate (sucrose, glucose and fructose) contents in the fruits but flavonoids and anthocyanins were increased significantly by the addition of the bacteria, relative to non-inoculated plants under limited N supply. Key words: Plant-growth-promoting bacteria, Capsicum annuum L., soilless, photosynthesis, chlorophylls, flavonoids

Effects of plant growth promoting bacteria and mycorrhizal on Capsicum annuum L. var. aviculare ([Dierbach] D’Arcy and Eshbaugh) germination under stressing abiotic conditions

2010 ◽  
Vol 48 (8) ◽  
pp. 724-730 ◽  
Author(s):  
Edgar Omar Rueda-Puente ◽  
Bernardo Murillo-Amador ◽  
T. Castellanos-Cervantes ◽  
José Luís García-Hernández ◽  
Mario Antonio Tarazòn-Herrera ◽  
...  
Keyword(s):  
Plant Growth ◽  
Capsicum Annuum ◽  
Plant Growth Promoting Bacteria ◽  
Abiotic Conditions ◽  
Capsicum Annuum L ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Characterization of Plant Growth Promoting Rhizobacteria (PGPR) on Capcissum annum

2021 ◽  
Vol 6 (2) ◽  
pp. 255-263
Author(s):  
Indah Juwita Sari ◽  
Indria Wahyuni ◽  
Rida Oktorida Khastini ◽  
Ewi Awaliyati ◽  
Andriana Susilowati ◽  
...  
Keyword(s):  
Plant Growth ◽  
Capsicum Annuum ◽  
Pathogenic Fungi ◽  
Culture Method ◽  
Plant Growth Promoting Rhizobacteria ◽  
Plant Growth Promoting Bacteria ◽  
Dual Culture ◽  
Plant Growth Promoting ◽  
Growth Promoting

Plant Growth Promoting Bacteria Rhizobacteria (PGPR) is one of the potential bacteria to enhance of Capsicum annuum through inhabitation the growth of pathogenic fungi. This study aimed to characterize PGPR in chili plants (Capsicum annuum). PGPR was isolated from the soil habitat of the red chili plant in Cilegon, Indonesia. Screening was then carried out with the dual culture method on Petri dishes and tested through in vivo method on the red chili plant. The selected bacteria were characterized morphologically, biochemically, and physiologically. The results revealed that there were 14 single isolates of bacteria from the roots of the red chili plants. The five single bacterial isolates, namely Azostobacter, Azospirillum, Pseudomonas, Serratia, and Beijerinckia have good potential as PGPR based on multiple culture screening by producing clear zones and positively effect the growth of chili plants.

Sign in / Sign up

Export Citation Format

Share Document