scholarly journals Maize response to inoculation with strains of plant growth-promoting bactéria

2016 ◽  
Vol 20 (7) ◽  
pp. 606-611 ◽  
Author(s):  
Janaína Dartora ◽  
Vandeir F. Guimarães ◽  
Cid R. J. Menezes ◽  
Mariângela B. Freiberger ◽  
Gustavo Castoldi ◽  
...  
Keyword(s):  
Plant Growth ◽  
Block Design ◽  
N Fertilization ◽  
Plant Growth Promoting Bacteria ◽  
Maize Seeds ◽  
Randomized Block Design ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Maize Response ◽  
Rhizobium Sp

ABSTRACT The aim of this study was to evaluate the response of maize to inoculation with strains of plant growth-promoting bacteria (PGPB) in two cultivation years. The experiment was set in a randomized block design with four replicates in two cultivation years (2012/13 and 2013/14). The treatments consisted of PGPB inoculation: control (without N and without inoculation); 30 kg of N ha-1 at sowing (N1); 160 kg of N ha-1 (N1 + 130 kg of N ha-1 as top-dressing); N1 + A. brasilense, Ab-V5; N1 + A. brasilense, HM053; N1 + Azospirillum sp. L26; N1 + Azospirillum sp. L27; N1 + Enhydrobacter sp. 4331; N1 + Rhizobium sp. 8121. Basal stem diameter, plant height, leaf area, shoot dry matter and yield were evaluated. The strain of Rhizobium sp. 8121and the isolate Azospirillum sp. L26 associated with 30 kg of N ha-1 at sowing promoted yields equivalent to that of the N fertilization of 160 kg ha-1, demonstrating the potential to be used in the inoculation of maize seeds.

scholarly journals Plant growth-promoting bacteria associated with nitrogen fertilization at topdressing in popcorn agronomic performance

Bragantia ◽  
2016 ◽  
Vol 75 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Leandro Teodoski Spolaor ◽  
Leandro Simões Azeredo Gonçalves ◽  
Odair José Andrade Pais dos Santos ◽  
André Luiz Martinez de Oliveira ◽  
Carlos Alberto Scapim ◽  
...  
Keyword(s):  
Plant Growth ◽  
Grain Yield ◽  
Nitrogen Fertilization ◽  
Block Design ◽  
N Fertilization ◽  
Plant Growth Promoting Bacteria ◽  
Promising Alternative ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
N Rates

ABSTRACT The use of plant growth-promoting bacteria is a promising alternative with low environmental impact to increase the efficiency of use of chemical fertilizers, ensuring high yield with better cost-effective ratio. In maize crops, several studies have demonstrated an increased yield when Azospirillum-based inoculants are used. In the case of popcorn, there are no available studies related to use of inoculation and its response on yield parameters. Thus, the aim of this study was to evaluate the field performance of popcorn when inoculated with the commercial product Masterfix L (A. brasilense Ab-V5 and A. brasilense Ab-V6) and the non-commercial inoculant UEL (A. brasilense Ab-V5 + Rhizobium sp. 53GRM1) associated with nitrogen fertilization. The trials were conducted in Londrina and Maringá, Paraná State, Brazil, in a randomized block design with four replications, in a split plot design with the inoculation treatments located in the plots (uninoculated, Masterfix L, and UEL) and the different N rates located in the subplots where ammonium sulphate was applied in the topdressing at the V6 stage (0, 50, 100, and 150 kg∙ha–1). The variance analysis showed significant effects (p < 0.05) of inoculation (Londrina environment) and N rates (both environments) only for grain yield. There was no inoculation effect in the grain yield when inoculants were applied together with N-fertilization at topdressing. In the absence of N-fertilization at topdressing, the inoculants Masterfix L. and UEL promoted higher grain yield as compared to the uninoculated plants, with resulting increases of 13.21 and 26.61% in yield, respectively.

scholarly journals Bacterial Consortium for Improved Maize (Zea mays L.) Production

2019 ◽  
Vol 7 (11) ◽  
pp. 519 ◽  
Author(s):  
Oluwaseyi Samuel Olanrewaju ◽  
Olubukola Oluranti Babalola
Keyword(s):  
Plant Growth ◽  
Growth Parameters ◽  
Block Design ◽  
Bacterial Consortium ◽  
Microbial Consortia ◽  
Plant Growth Promoting Bacteria ◽  
Promoting Effect ◽  
Maize Seeds ◽  
Plant Growth Promoting ◽  
Growth Promoting

The ever-increasing human population is a major concern for food security. Maize is the third largest most important food crop. The major problems of cultivation arise from urbanization and land pollution. This reduces the amount of land available for agriculture. The use of chemicals in agriculture is not environmentally friendly. Thus, plant growth-promoting bacteria (PGPB) have been proposed as alternatives. This study aims to test the growth-promoting effect of maize inoculated with six indigenous PGPB isolates. These isolates were assayed for various biochemical and plant growth-promoting activities. They were also assayed for biocontrol activities. Based on the results, six isolates viz A1, A18, A29, NWU4, NWU14, and NWU198 were used to inoculate maize seeds. The inoculated seeds were tried out on the field. A randomized block design was used. PGPB used were in single, consortia of two, and three organisms. The length of the leaves, roots, and stem, plant height, numbers of leaves, and weight of 100 seeds were taken at the fourth and eighth weeks after planting. Microbial consortia increased growth parameters compared to single inoculant treatments. Thus, they can be of advantage in the eradication of low yield. They can also serve as reliable alternatives to chemical fertilizers.

scholarly journals Forage Mass, Tillering, Nutritive Value and Root System of Ruzigrass Inoculated with Plant Growth Promoting Bacteria Associated with Doses of N-Fertilizer

2020 ◽  
Vol 8 (10) ◽  
pp. 41-55
Author(s):  
Artur Roque Domingues Barreiros ◽  
Ulysses Cecato ◽  
Camila Fernandes Domingues Duarte ◽  
Mariangela Hungria ◽  
Thiago Trento Biserra ◽  
...  
Keyword(s):  
Plant Growth ◽  
Root System ◽  
Nutritive Value ◽  
Block Design ◽  
N Fertilizer ◽  
Neutral Detergent Fiber ◽  
In Vitro Digestibility ◽  
Plant Growth Promoting Bacteria ◽  
Plant Growth Promoting ◽  
Growth Promoting

The aim of this study was evaluating the effect of the inoculation of plant growth promoting bacteria (PGPB) in forage mass, tillering, nutritive value and root system of ruzigrass (Urochloa ruziziensis (R. Germ. & Evrard) Crins (syn. of Brachiaria ruziziensis) associated with doses of N-fertilizer. The bacteria inoculated were Azospirillum brasilense Ab-V5, Pseudomonas fluorescens CCTB03 and Pantoea ananatis AMG 521, plus the control treatment (non-inoculated), associated with doses of N-fertilizer (0, 50 and 100 kg N ha-1). The experiment was performed in a randomized block design, in a 4x3 factorial scheme, with four replicates, totaling 48 plots (12 m2). There were no effects of the PGPB and the use of N-fertilizer on the leaf blade, stem+sheath, forage mass, daily and yearly accumulation of forage mass. The PGPB did not have influence on the density of tillers. The doses of 50 and 100 kg of N ha-1 increased the amount of tillers. The AMG 521 strain associated with N-fertilizer provided heavier tillers. There was no effect of the PGPB on crude protein (CP), neutral detergent fiber (NDF), as well as acid detergent fiber (ADF), and in vitro digestibility of the dry matter (IVDDM).  The use of 100 kg of N ha-1 contributed to an increase in CP and a decrease in NDF. The AMG 521 strain contributed to a smaller diameter of the root. Strains CCTB03 and AMG 521 demonstrated a smaller area, length and root density when associated with the dose of 50kg of N ha-1. In general, the PGPB were not efficient in promoting productive increments in ruzigrass.

scholarly journals Respon Tanaman Kedelai (Glycine max (L.) Merril) terhadap Kombinasi Dosis PGPR (Plant Growth Promoting Rhizobacteria) dan Pupuk Phonska

2019 ◽  
Vol 7 (2) ◽  
pp. 64
Author(s):  
Syafrullah Salman
Keyword(s):  
Plant Growth ◽  
Seed Weight ◽  
Block Design ◽  
Plant Growth Promoting Rhizobacteria ◽  
Area Index ◽  
Randomized Block Design ◽  
Plant Growth Promoting ◽  
Glycine Max L ◽  
Growth Promoting ◽  
C 50

This research aims to find out effect of combination dosage of PGPR (Plant Growth Promoting Rhizobacteria) and phonska fertilizer toward the growth and the yield of soybean. This experiment was carried out in the field using a combination randomized block design (RBD) with five repeating.The treatments gave were 100% PGPR fertilizer (8 grams / liter) (A), 100% PGPR fertilizer (8 grams / liter) + 50% phonska fertilizer (0.78 grams) (B), 50% PGPR fertilizer (4 grams / liter) + 100% phonska fertilizer (1.56 gram) (C), 50% PGPR fertilizer (4 gram / liter) + 50% phonska fertilizer (0.78 gram) (D) and 100% phonska fertilizer (1, 56 grams) (E).The results showed that the treatment of 50% PGPR fertilizer (4 grams / liter) + phonska fertilizer 100% (1.56 grams) (C) gave a significant effect on the variable root length and leaf area index (LAI).The treatment of 100% phonska fertilizer (1.56 grams) (E) gave a significant effect on the variable seed weight per plot.

scholarly journals Morphological Response of Bawang Dayak (Eleutherine americana Merr.) on Plant Growth Promoting Rhizobacteria Application

Akta Agrosia ◽  
2020 ◽  
Vol 23 (1) ◽  
pp. 33-37
Author(s):  
Fera Ariska ◽  
Marlin Marlin ◽  
Widodo Widodo
Keyword(s):  
Plant Growth ◽  
Immersion Time ◽  
Block Design ◽  
Plant Growth Promoting Rhizobacteria ◽  
Growth And Yield ◽  
Morphological Response ◽  
Randomized Block Design ◽  
Plant Growth Promoting ◽  
Number Of Leaves ◽  
Growth Promoting

Bawang dayak is the important medicinal plant that need to be developed in cultivation techniques and production. The use of Plant Growth Promoting Rhizobacteria (PGPR) recently known to be effective to increase plant growth and yield. The research aimed to determine the optimal concentration and immersion time of PGPR on the growth and yield of bawang dayak. The experiment was arrange in complete randomized block design (RCBD) consisting of two factors. The first factor is the concentration of PGPR with 4 levels namely K0 = 0 g L-1, K1 = 5 g L-1, K2 = 10 g L-1 and K3 = 15 g L-1.  The second factor is immersion time of seed, namely P1 = 10 minutes, P2 = 20 minutes, P3 = 30 minutes and P4 = 40 minutes.  The results showed that there was an interaction between concentration and immersion time of PGPR giving effect to the number of leaves and the number of tillers. The immersion time of PGPR for 10 minutes with a concentration of 15 g L-1produced the highest number of leaves (58 leaves) and produced the highest number of tillers (27.67 tillers).  The treatment of PGPR concentration or immersion time of PGPR singly did not affect all observed variables of growth and yield of bawang dayak.

scholarly journals Compatibility of Azospirillum brasilense with Pesticides Used for Treatment of Maize Seeds

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Mariana S. Santos ◽  
Artur B. L. Rondina ◽  
Marco A. Nogueira ◽  
Mariangela Hungria
Keyword(s):  
Plant Growth ◽  
Root Hair ◽  
Azospirillum Brasilense ◽  
Plant Protection ◽  
Plant Growth Promoting Bacteria ◽  
Root Volume ◽  
Maize Seeds ◽  
Plant Growth Promoting ◽  
Growth Promoting

Seed treatment with chemical pesticides is commonly used as an initial plant protection procedure against pests and diseases. However, the use of such chemicals may impair the survival and performance of beneficial microorganisms introduced via inoculants, such as the plant growth-promoting bacterium Azospirillum brasilense. We assessed the compatibility between the most common pesticide used in Brazil for the treatment of maize seeds, composed of two fungicides, and one insecticide, with the commercial strains Ab-V5 and Ab-V6 of A. brasilense, and evaluated the impacts on initial plant development. The toxicity of the pesticide to A. brasilense was confirmed, with an increase in cell mortality after only 24 hours of exposure in vitro. Seed germination and seedling growth were not affected neither by the A. brasilense nor by the pesticide. However, under greenhouse conditions, the pesticide affected root volume and dry weight and root-hair incidence, but the toxicity was alleviated by the inoculation with A. brasilense for the root volume and root-hair incidence parameters. In maize seeds inoculated with A. brasilense, the pesticide negatively affected the number of branches, root-hair incidence, and root-hair length. Therefore, new inoculant formulations with cell protectors and the development of compatible pesticides should be searched to guarantee the benefits of inoculation with plant growth-promoting bacteria.

scholarly journals A Multifactorial Approach to Untangle Graphene Oxide (GO) Nanosheets Effects on Plants: Plant Growth-Promoting Bacteria Inoculation, Bacterial Survival, and Drought

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 771
Author(s):  
Tiago Lopes ◽  
Catarina Cruz ◽  
Paulo Cardoso ◽  
Ricardo Pinto ◽  
Paula A. A. P. Marques ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Plant Growth ◽  
Food Production ◽  
Plant Growth Promoting Bacteria ◽  
Bacterial Survival ◽  
Maize Seedlings ◽  
Combined Application ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Rhizobium Sp

Drought is a limiting factor for agricultural productivity. Climate change threatens to expand the areas of the globe subjected to drought, as well as to increase the severity and duration of water shortage. Plant growth-promoting bacteria (PGPB) are widely studied and applied as biostimulants to increase plant production and to enhance tolerance to abiotic and biotic constraints. Besides PGPB, studies on the potential of nanoparticles to be used as biostimulants are also thriving. However, many studies report toxicity of tested nanoparticles in bacteria and plants in laboratory conditions, but few studies have reported effects of nanoparticles towards bacterial cells and communities in the soil. The combined application of nanoparticles and PGPB as biostimulant formulations are poorly explored and it is important to unravel the potentialities of their combined application as a way to potentiate food production. In this study, Rhizobium sp. E20-8 and graphene oxide (GO) nanosheets were applied on container-grown maize seedlings in watered and drought conditions. Bacterial survival, seedling growth (dry weight), and biochemical endpoints (photosynthetic pigments, soluble and insoluble carbohydrates, proline, lipid peroxidation, protein, electron transport system, and superoxide dismutase) were evaluated. Results showed that the simultaneous exposure to GO and Rhizobium sp. E20-8 was able to alleviate the stress induced by drought on maize seedlings through osmotic and antioxidant protection by GO and mitigation of GO effects on the plant’s biochemistry by Rhizobium sp. E20-8. These results constitute a new lead on the development of biostimulant formulations to improve plant performance and increase food production in water-limited conditions.

scholarly journals Initial performance of maize in response to humic acids and plant growth-promoting bacteria

Revista CERES ◽  
2018 ◽  
Vol 65 (3) ◽  
pp. 271-277 ◽  
Author(s):  
Raphael Oliveira de Melo ◽  
Hend Pereira de Oliveira ◽  
Klever Cristiano Silveira ◽  
Lílian Estrela Borges Baldotto ◽  
Marihus Altoé Baldotto
Keyword(s):  
Plant Growth ◽  
Humic Acids ◽  
Most Probable Number ◽  
Plant Growth Promoting Bacteria ◽  
Probable Number ◽  
Combined Application ◽  
Maize Seeds ◽  
Burkholderia Gladioli ◽  
Plant Growth Promoting ◽  
Growth Promoting

ABSTRACT Seed treatment with inoculants based on plant growth-promoting bacteria (PGPB) or the application of humic acids (HA) may increase the productivity of plants of agricultural interest. The hypothesis of this work is that it is possible to combine the effect of plant growth promoting characteristic of HA with the inoculation of PGPB selected strains in the treatment of maize seeds. Thus, providing superior responses than in single applications of both in the initial maize development. To meet this purpose, we conducted isolated application of HA or PGPB inoculation of Burkholderia gladioli and Rhizobium cellulosilyticum, and the combined application of PGPB and HA for treatment of maize seeds. At the end of the experiment (45 days after germination), the plants were evaluated biometrically, nutritionally and a bacteria count was performed in plants using the Most Probable Number technique. The results showed that it is possible to combine the effects of HA with the inoculation of selected strains of PGPB, obtaining superior responses to the isolated application of both. Thus, the use of HA-based bio-stimulants in combination with PGPB is positive and complementary compared to inputs generally used in the treatment of maize seeds.

scholarly journals Co-inoculation and inoculation methods of plant growth-promoting bacteria in wheat yield performance

2021 ◽  
Vol 42 (1) ◽  
pp. 43-56
Author(s):  
Luiz Júnior Perini ◽  
◽  
Douglas Mariani Zeffa ◽  
William Rafael Roesler ◽  
Claudemir Zucareli ◽  
...  
Keyword(s):  
Plant Growth ◽  
Grain Yield ◽  
Wheat Crop ◽  
Plant Growth Promoting Bacteria ◽  
Leaf Nitrogen Content ◽  
Inoculation Methods ◽  
Plant Growth Promoting ◽  
Commercial Inoculant ◽  
Growth Promoting ◽  
Rhizobium Sp

Several studies have reported the beneficial effects of inoculation of Azospirillum brasilense in wheat, but only a few of them have related the co-inoculation of A. brasilense and Rhizobium sp. and the evaluation of different inoculation methods. This study aimed i) to verify the efficiency of plant growth-promoting bacteria (PGPB) in subtropical environments, ii) to verify the efficiency of co-inoculation of A. brasilense and Rhizobium sp., and iii) to verify the efficiency of the management of different inoculation methods in the wheat crop. The experiments were carried out in Londrina and Apucarana, State of Paraná, Brazil, under a complete randomized block design, with four replications and nine treatments: T1) absence of nitrogen (N) topdressing, T2) 30 kg ha−1 of N topdressing, T3) 60 kg ha−1 of N topdressing, T4) A. brasilense Ab-V5 in the seeds, T5) A. brasilense Ab-V5 in post-emergence, T6) A. brasilense Ab-V5 + Rhizobium sp. 53GRM1 in the seeds, T7) A. brasilense Ab-V5 + Rhizobium sp. 53GRM1 in post-emergence, T8) commercial inoculant (A. brasilense Ab-V5 + Ab-V6) in the seeds, and T9) commercial inoculant (A. brasilense Ab-V5 + Ab-V6) in post-emergence. The number of ears per linear meter, number of spikelets, number of grains per spikelet, number of grains per ear, thousand-grain weight, number of spikelets to ears ratio, leaf nitrogen content, and grain yield were evaluated. Leaf N content and yield components showed no alterations due to the inoculation and co-inoculation performed both in the seed and in the post-emergence of seedlings. Treatments T3, T7, and T9 showed the highest means of grain yield (2077.50, 1743.12, and 1660.62 kg ha−1, respectively), demonstrating that co-inoculation with A. brasilense Ab-V5 + Rhizobium sp. 53GRM1 and inoculation with A. brasilense Ab-V5 + Ab-V6, both in post-emergence of seedlings, have the potential to replace the topdressing nitrogen fertilization in wheat.

scholarly journals Performance of Centrocema grown on mercury-contaminated tailing inoculated with beneficial bacteria: Preliminary study

2021 ◽  
Vol 882 (1) ◽  
pp. 012061
Author(s):  
R Hindersah ◽  
Y Sunarya ◽  
M Arifin ◽  
R Priyadi
Keyword(s):  
Plant Growth ◽  
Cover Crops ◽  
Block Design ◽  
Control Treatment ◽  
Plant Growth Promoting Bacteria ◽  
Gold Mine ◽  
Phosphate Solubilizing Bacteria ◽  
Randomized Block Design ◽  
Gold Mine Tailings ◽  
Plant Growth Promoting

Abstract Low levels of major essential nutrients and high mercury (Hg) content in gold mine tailings can inhibit plant growth. An inexpensive and effective strategy to overcome these obstacles was inoculation of plant-growth promoting bacteria and planting legume cover crops (LCC). A greenhouse experiment was conducted to evaluate the effect of isolates of Nitrogen Fixing Bacteria (NFB) and Phosphate Solubilizing Bacteria (PSB) on some growth characteristics of LCC Censtrosema pubescens (butterfly pea) grown in Hg-contaminated tailing of gold mine tailing. Moreover, the research was aimed to verify the viability of two bacterial groups in tailing after inoculation. The experiment was set up in randomized block design to test single and mixed inoculation of NFB and PSB. The experiment verified that the single inoculation and mixture of two bacteria did not change plant properties compared to the control treatment. Although the statistical analysis was not significant, there were slightly increase in root length as well as NFB and PSB populations of inoculated plants.

Sign in / Sign up

Export Citation Format

Share Document