scholarly journals BIO-CONTROL ACTIVITY OF PLANT GROWTH PROMOTING RHIZOBACTERIA ON SCLEROTIUM ROLFSII

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
Z. Mary Swaroopa ◽  
R. Jaya Madhuri
Keyword(s):  
Plant Growth ◽  
Agricultural Development ◽  
Crop Improvement ◽  
Sclerotium Rolfsii ◽  
Plant Growth Promoting Rhizobacteria ◽  
Crop Productivity ◽  
Chemical Components ◽  
Control Activity ◽  
Plant Growth Promoting ◽  
Growth Promoting

Crop productivity and crop improvement are colloidal components as the demand of the increasing population, worldwide for the provision of food from crops require dedicated agricultural strategies that tend to lean on natural, available and, beneficial, easily reproducible means of products. In general, the soil components rich in organic matter that can avail rich microbial community initiates agricultural productivity in abundance and in the way to deduce it. But, commercially available chemical pesticides, pollution in the environment, biotic and abiotic constituents are found to be the key components that stress the crop productivity. This can be overtaken by the microbes that can function as both “bio-fertilizer” and “antagonistic” agents, mentioned as Plant growth-promoting rhizobacteria(PGPR), as they present satisfactory, advantageous impact when ever required, due to their presence in the rhizospheric region, by providing nutrients uptake from soil and controlling the unnecessary hazardous bio-impact on plants .Present study relies on sustainable agricultural development that utilizes the bacteria from the rhizospheric region thereby recommending bio-formulation in the future to mobilize the unaware farmer for better productivity, free of devastating chemical components that enter the food chain via crop produced by using chemicals, and also by easy means without affecting the surrounding environment and human health. In this context, Sclerotium rolfsii, a deleterious pathogen that affects groundnut crops predominantly, how best can be prevented and can be suppressed by using beneficial PGPR is been studied.

scholarly journals Impact of Plant Growth Promoting Rhizobacteria in Sustainable Agriculture: An Important Natural Resource for Crop Improvement

2019 ◽  
Vol 5 (03) ◽  
pp. 210-214
Author(s):  
Debnirmalya Gangopadhyay ◽  
Ashmita Ghosh
Keyword(s):  
Plant Growth ◽  
Sustainable Agriculture ◽  
Crop Yields ◽  
Growth Promotion ◽  
Crop Improvement ◽  
Plant Growth Promoting Rhizobacteria ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Increasing Demand ◽  
Environmentally Sound

It is usually admitted that the chemical fertilizers and pesticides used in modern agriculture create a real environmental and public health problems. The increasing demand for production with a significant reduction of synthetic fertilizers and pesticides use is a big challenge nowadays. The use of plant growth promoting rhizobacteria or PGPR has been proven to be an environmentally sound way of increasing crop yields by facilitating plant growth through either a direct or indirect mechanism. They play an important role to increase in soil fertility, plant growth promotion and suppression of phytopathogens for development of ecofriendly sustainable agriculture. In view of the latest advances in PGPR biotechnology, this paper proposes to do the review on PGPR in rhizosphere and describes the different mechanisms used by PGPR to promote the plants growth and health. In prospect to a healthy and sustainable agriculture, the PGPR approach revealed as one of the best ecofriendly alternatives.

scholarly journals Salt-Tolerant Plant Growth Promoting Rhizobacteria for Enhancing Crop Productivity of Saline Soils

2019 ◽  
Vol 10 ◽  
Author(s):  
Dilfuza Egamberdieva ◽  
Stephan Wirth ◽  
Sonoko Dorothea Bellingrath-Kimura ◽  
Jitendra Mishra ◽  
Naveen K. Arora
Keyword(s):  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Crop Productivity ◽  
Saline Soils ◽  
Salt Tolerant ◽  
Tolerant Plant ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Enhanced Crop Productivity and Sustainability by Using Native Phosphate Solubilizing Rhizobacteria in the Agriculture of Arid Zones

2020 ◽  
Vol 4 ◽  
Author(s):  
Stefanie Maldonado ◽  
Andrés Rodríguez ◽  
Bastián Ávila ◽  
Paloma Morales ◽  
Máximo Patricio González ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Pathogens ◽  
Plant Growth Promoting Rhizobacteria ◽  
Crop Productivity ◽  
Arid Zones ◽  
Phosphorus Cycle ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Phosphate Solubilizing ◽  
Phosphate Solubilizing Rhizobacteria

The importance of phosphate solubilizing rhizobacteria (PSB) has been well-document as an option for enhancing sustainable agriculture. As a particular group of plant growth promoting rhizobacteria (PGPR), PSB play an important role in the soil phosphorus cycle, increasing the bioavailability for growth and plant development. This study analyses the plant growth promoting effects of 5 strains (BN0009, BN0013, BN0015, BN0024, and BN0035) out of 180 isolated from Jarava frigida (Phil.) F.Rojas (Poaceae), a native grass from the Andean Atacama desert from North of Chile. The five bacterial isolated (BN strains) were identified as non-pathogenic Erwinia sp. and show a high phosphate solubilization capacity for Ca(PO4) ranging from 608.9 to 781.4 mg/L. Strains IAA production varies between 23.5 and 35.9 mg/L, siderophores, phosphatase (alkaline and acid) production was also observed, but none of the five isolated presented antagonism against plant pathogens Botrytis sp. and Sclerotinia sp. All isolates enhanced seed germination in Lactuca sativa and Solanum lycopersicum (excepting BN009). Additionally, all strains stimulated the early root elongation and seedling development in lettuce and tomato. Pot experiments displayed that BN0015, BN0024, and BN0035 significantly promote plant growth regarding root and leaf area, root and leaf weight, as well as leaf number compared with non-treated plants. In a field experiment with lettuce and two fertilization treatments (50 and 100% of the recommended crop fertilization), BN0024 application improved crop productivity compared to respective control. P content in plants with bacterial inoculations increased significantly compared to control in either fertilization treatment, suggesting an improved nutrient uptake. Also, lettuce with 50% fertilization and inoculation with BN0024 equate productivity with the control 100% fertilization. Finally, we discuss these results in the context of applicability to enhance the agroecosystem productivity in arid and semiarid zones.

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