Interaction Between Azospirillum brasilense and ‘Phosphate Solubilizing Bacteria’ and their Influence on Yield and Nutrient Uptake of Sorghum (Sorghum bicolor L.)

1988 ◽  
Vol 143 (8) ◽  
pp. 637-643 ◽  
Author(s):  
A.R. Alagawadi ◽  
A.C. Gaur
2019 ◽  
Vol 39 (1) ◽  
pp. 239-253 ◽  
Author(s):  
Leila Rezakhani ◽  
Babak Motesharezadeh ◽  
Mohammad Mehdi Tehrani ◽  
Hassan Etesami ◽  
Hossein Mirseyed Hosseini

2021 ◽  
Vol 10 (2) ◽  
pp. e16710212321
Author(s):  
Larissa Luísa Schumacher ◽  
Julio Viégas ◽  
Tiago João Tonin ◽  
Stela Näetzold Pereira ◽  
Fernando Reimann Skonieski ◽  
...  

A inoculação com Azospirillum brasilense apresenta potencial de uso na cultura do sorgo (Sorghum bicolor [L.] Moench) pela possibilidade de alterar a fisiologia e morfologia das plantas. Neste sentido, o presente estudo tem por objetivo avaliar a influência da inoculação via semente com a bactéria promotora de crescimento da estirpe Azospirillum brasilense sobre a composição morfológica, parâmetros fermentativos, perdas nutricionais, frações nitrogenadas e de carboidratos em silagem de sorgo do híbrido AG 2005. O delineamento experimental foi o inteiramente casualizado, constituindo-se de dois tratamentos (com e sem inoculação), com quatro repetições de silos. O fracionamento nitrogenado, foi determinado conforme descrito por Licitra et al. (1996) e para mensurar o fracionamento dos carboidratos, foi avaliado de acordo com a metodologia proposta por Lanzas et al. (2007). As plantas inoculadas apresentaram menor porcentagem de colmo, mas houve maior participação de panícula mais grãos. O híbrido inoculado produziu silagem com menor teor de nitrogênio insolúvel em detergente ácido (NIDA) e nitrogênio insolúvel em detergente neutro (NIDN). Com relação ao fracionamento de carboidratos, as silagens de sorgo com inoculação diferiram significativamente em CHO (carboidratos totais) e CC (fibra indigestível) em relação ao controle. Sobre o fracionamento proteico, a fração   indigestível (PC), a inoculação apresentou redução de 0,29 unidade percentuais quando comparado ao controle. Desta forma, a inoculação de sementes com A. brasilense pode ser uma alternativa viável, pois apresenta potencial de reduzir a fração de proteína e glicídios insolúvel e indigestível no trato gastrointestinal em silagens de sorgo.


2005 ◽  
Vol 7 (2) ◽  
pp. 41-47
Author(s):  
Aidi Noor

The aims of the experiment were to evaluate the effect of rock phosphate application and combination betweenphosphate-solubilizing bacteria with farm yard manure on nutrient uptake and yield of soybean. Factorial experiment design with two factors was used in randomized complzte block design with three replications. The first factors was level of rockphosphate i.e. : 0; 30; 60; 90 kg P ha· I, and the second factor was combination of phosphate solubili=ing bacteria andfarm yard manure: without phosphate solubi/i=ing bacteria andfarm yard manure; phosphate solubilbing bacteria (Pseudomonas fluorescens); farm yard manure 10 ton ha"I, and phosphate solubilizing bacteria + farm yard manure. The results indicated that rock phosphate and combination of phosphate solubilizing bacteria andfarm yard manure application increased nutrient (N, p, K) uptake and grain yield of soybean. Optimum dosage of rock phosphate in soil without phosphate-solubilizing bacteria andfarm yard manure (control) was 72.15 kg P hdl which gave maximum yield of soybean was 7.73 g pori. While with phosphate-solubilizing bacteria. farm yard manure and phosphate solubilizing bacteria+farm yard manure obtained optimum dosage of rock phosphate were 62.26, 63.94, and 62. 21 kg P hd1 , respectively, which gave maximum yield of soybean were 8.17, 7.95, and 8.43 g pori, respectively.


2020 ◽  
Vol 9 (3) ◽  
pp. 198-208
Author(s):  
V. Vijayalakshmi ◽  
S. Pradeep ◽  
H. Manjunatha ◽  
V. Krishna ◽  
V. Jyothi

Objective: The inoculants, mainly nitrogen fixers and phosphate solubilizing microbes, have an influence on plant growth attributes. The current study was conducted to assess the fertilizing activity of A. chroocaccum and B. megaterium strains on growth, yield parameters and nutrient uptake of Sorghum bicolor. Methods: The isolation and identification of the nitrogen-fixing bacterium- A. chroocaccum and phosphate solubilizing microbe- B. megaterium and the growth and yield parameters of Sorghum bicolor as well as NPK uptake levels were studied. Results: A. chroocaccum and B. megaterium exhibited the proliferation of microbial population in soil by synergistic interaction with plants, and the application increased the availability of NPK in the soil after harvest of the crop. These beneficial inoculants are also known to help in the uptake of some other nutrients. The maximum beneficial aspects of the plant were noticed in the plants inoculated with 100% Recommended Dose of Fertilizer (RDF)+ A. chroocaccum+ B. megaterium, and the least was noticed in the control plants at all growth stages and at the time of harvest. Conclusion: From this study, it can be concluded that the beneficial effect of A. chroocaccum and B. megaterium is observed in sorghum crop with improved yield and nutrient uptake. Therefore, this species can be used extensively for future inoculation of the sorghum crop for better growth and development and for good returns in an ecological way.


1989 ◽  
Vol 35 (11) ◽  
pp. 977-981 ◽  
Author(s):  
Raymond S. Pacovsky

Sorghum (Sorghum bicolor (L.) Moench cv. Bok 8) plants were grown in either a high peat or a low organic matter substrate and inoculated with a pigmented strain of Azospirillum brasilense (Cd). Half of the plants were also inoculated with the vesicular–arbuscular mycorrhizal (VAM) fungus Glomus etunicatum, while the remaining plants were fertilized with levels of phosphorus that had been found to be comparable to P input resulting from mycorrhizal colonization. Plants were harvested 1, 3, 5, and 7 weeks postemergence. Total plant dry weight was statistically similar (p > 0.05) between the two treatments for each substrate at all harvests. For each substrate, Azospirillum counts per gram of root were significantly (p < 0.05) higher in mycorrhizal roots at all harvests than in P-fertilized roots, and also higher in the high peat substrate compared with the low organic matter substrate. The ratio of the total number of inoculated A. brasilense cells in the Glomus-colonized compared to the P-fertilized roots was positively and significantly correlated (r = 0.81; p < 0.05) with % VAM colonization. Colonization of sorghum roots by G. etunicatum thus enhanced the establishment and persistence of A. brasilense in the endorhizosphere of sorghum.Key words: Azospirillum brasilense, endomycorrhizae, Glomus etunicatum, rhizosphere, Sorghum bicolor.


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