Bacillus amyloliquefaciens as a halo-PGPB and chitosan effects in nutritional value and yield production of Asparagus officinalis L. under Sonora desert conditions (original) (raw)
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Evolution of Bio-Active Substances in Asparagus as Affected by Different Harvest Times
European Chemical Bulletin, 2012
In our trials at the experimental farm Pallag of Debrecen University 3 asparagus varieties ( Cumulus, Gijnlim, Grolim ) were tested on brown humus sand soil in ridge cultivation. Solids, nutritional fibre, protein, sugar and vitamin-C contents were measured in the white spears at 3 different harvest times (8 May, 24 May, 6 June 2012). Mineral element tests included B, Ca, Cu, Fe, K, Mg, Na, P, S, Zn and sulphate sulphur. Our trials confirmed the strong negative correlation (r = -0.828) between the sugar and vitamin-C content of the spears. In our variety comparison trial the variety Cumulus had the highest solids (7.1 %), nutritional fibre (4.7 %), protein (2.81 %) and sugar (3.51 %) contents. Among the microelements the high Fe content (4.93 – 7.63 mg/kg) deserves attention. Fe is variety dependent. The highest value was found in Gijnlim with 7.5 mg/kg. The sulphate-S content is responsible for the special taste and flavour of asparagus. In our trials Cumulus had the highest sulpha...
Enhance plant health by using of phosphate solubilizing Bacillus sp. as ecofriendly Bio fertilizer
In the rhizosphere, bacterial population promote plant health by acquisition of essential micro-macro nutrients, production of growth hormones, phosphate solubilization (PS), ammonia production and inhibition against soil borne pathogens. In our present study, we have isolated (AriD) and characterized a plant growth promoting rhizospheric (PGPR) Bacillus sp. bacterium from Occimintum sanctum rhizospeheric zone. This articles aims to summarized, the overall performance of inoculated treatments reveled that soil treatments of Corchoruscapsularis and Cicer arietinum L., with AriD could give significantly better results (seeds germination, root-shoot: height-weight and leaves) in respect of control. AriD solubilized phosphate at a concentration of 170 μg/mL in PKV broth after 5 days of incubation. The biochemical test, growth under stress condition (temperature and pH) were also looked into. In other study focused, IAA, cellulose-protease (Ep), ammonia production and antibiotic test (aT) were highly performed by AriD. Its potentiality as in developing bio fertilizer and a good phosphate solubiliser in Agriculture.
Revista Mexicana de Ciencias Agrícolas, 2021
Plant growth-promoting rhizobacteria (PGPR) inhabit the rhizosphere of several cultivated plants. Bacteria of the genus Bacillus have great functional importance in plant development. The objective of this research was to evaluate different doses of Bacillus sp. in the development of soybean and corn crops and in the chemical and microbiological attributes of the soil. The essays were conducted in the field in the 2016/2017 harvest. The soybean and corn seeds were treated with two doses of Bacillus sp. at a concentration of 109 CFU ml-1, with 10 and 20 ml of 100 kg of seed used in soybeans and 80 and 100 ml of 100 kg of seed in corn. The experiments were completely randomized in block with four repetitions. Chemical and microbiological attributes and plant development were evaluated. The results showed that the microbial activity was achieved at the dose of 20 ml of Bacillus sp. and positively influenced the weight of the grains and soybean productivity. In corn crops, the dose of 8...
Common bean (Phaseolus vulgaris L.) is an important legume that constitutes part of the daily feeding in countries like Mexico. In Northern Sinaloa, Mexico, bean yield remains low due to management and environmental factors that affect yield potential. Therefore, a field experiment was conducted in this region in order to investigate the response of common bean to different rates of phosphorus fertilizer and the role of Bacillus subtilis strain Q11 inoculation on growth, dry matter production and yield potential of the crop. The experiment was conducted as a split plot in a randomized complete block design with three replicates. A factor evaluated was four P rates (0, 25, 50, 100 kg ha-1) and other was the inoculation or not inoculation with B. subtilis. Variables as height, canopy closure, growth index, NDVI, yield parameters, and yield were evaluated. Based on the results obtained, P x B. subtilis interaction was not significantly (P>0.05) for the majority of parameters evaluated. Only P rates significantly (P<0.05) enhanced all variables of growth as a function of time. Usually, rates of 50 or 100 kg P ha-1 , were sufficient to enhance the growth components of stems and roots and dry matter production. In conclusion it was found that rate of 50 kg ha-1 was the more viable in enhancing the maximum growth, dry matter production and yield of common bean cultivated under this environment and under this soil conditions.
Impact of addition of biochar along with Bacillus sp. on growth and yield of French beans
Scientia Horticulturae, 2013
Use of chemical fertilizers to enhance crop yield may lead to pollution, acidification or mineral depletion in soil. Plant growth promoting rhizobacteria (PGPR) are an alternative to chemical fertilizers as they contribute towards promotion of plant growth and yield of different crops. But if added with biochar, they result not only in enhancement of crop yields, but also help in preventing fertilizer runoff , leaching, retaining moisture and helping plants through periods of drought. To the best of our knowledge this is first report to study the effect of biochar along with a potential PGPR strain, Bacillus sp. A pot experiment was done with 6 different treatments viz. pure soil, soil + biochar, soil + Bacillus sp., soil + biochar + Bacillus sp., soil + biochar + commercial biofertilizer (Biozyme), and soil + chemical fertilizer (Di-ammonium phosphate, DAP), and the length and biomass of root and shoot, seed yield and nutrient uptake were measured in French beans (Phaseolus vulgaris). Generally, all treatments showed a significant increase in growth and yield as compared to plants grown in untreated soil. It was observed that addition of biochar to soil influenced the overall growth of plants positively but the inoculation with Bacillus sp. or Biozyme enhanced this effect further. The treatment, soil + biochar + Bacillus sp. also showed the highest number of phosphate solubilizing bacteria in the rhizosphere of plants and percent N content in shoots, whereas the highest P content was observed in soil + DAP, followed by soil + biochar + Bacillus sp. combination. Hence, it can be concluded that both biochar and the bioinoculant, Bacillus sp. are good treatments for sustainable agriculture.
International Journal of Current Microbiology and Applied Sciences, 2018
In Indian economy, agriculture is the main backbone, which either directly or indirectly provides livelihood to approximately 70% of the country population. Therefore growth in the agricultural sector is essential for the growth and development of the country (Nerker et al., 2013). However, due to global climatic changes, environment typically meets a large number of single and combination of abiotic and biotic stresses, which severely Due to climate change, abiotic and biotic stresses like soil salinity, drought, pH, high temperature and plant fungal diseases are major threat for agriculture production and which reduces the growing demand of food of the population. To cope the adverse effect of such stresses, use of wide variety of synthetic chemical fertilizers cause serious hazardous effects on environment, soil, water and human health. Use of microorganisms as a bioinoculants is a new green eco-friendly technology for sustainable agriculture production and can lessen the effect ...
Plant and Soil, 2018
Aims Plant growth-promoting bacteria of the genus Bacillus are known to solubilize phosphates and enhance plant growth in many plant species. We explored the effects of the inoculation with a commercial isolate Bacillus amyloliquefaciens on the growth and metabolic processes of maize plants in pot soils treated with triple superphosphate, rock phosphate, and either cow-or horse-manure composts, as P-fertilizers. Methods The metabolic profiles of maize leaves in the different treatments were determined by both Gas Chromatography-Mass Spectrometry and Nuclear Magnetic Resonance spectroscopy. Principle Components Analysis (PCA) based on data matrix from both techniques revealed a relationship between treatments and specific plant metabolites. Results Inoculated plants showed larger P and N contents and a more differentiated metabolome when treated with the two composts than with inorganic fertilizers. B. amyloliquefaciens in combination with composts significantly increased glucose, fructose, alanine and GABA metabolites in maize leaves, thus suggesting an improved photosynthetic activity due to enhanced P and N uptake. Both composts sustained plant growth and the phosphate solubilizing activity of B. amyloliquefaciens, while differences in P and N contents in plant leaves were attributed to the different content in compost of lignin residues and alkyl moieties, and consequent impact on microbial growth. Conclusions The combination of B. amyloliquefaciens inoculation with composted organic P-fertilizers rich in available metabolic carbon appears as an efficient alternative to mineral fertilizers to enhance nutrients uptake and foster growth mechanisms in maize plants.
The effects of Bacillus subtilis Ch-13 (BS0 Bacillus subtilis Ch-13 not applied and BS1 Bacillus subtilis Ch-13 applied) and chemical fertilizer CF0 (0 kg N da -1 , 0 kg P da -1 ), CF25 (5 kg N da -1 , 0,7 kg P da -1 ), CF50 (10 kg N da -1 , 1,4 kg P da -1 ), CF75 (15 kg N da -1 , 2,1 kg P da -1 ), CF100 (20 kg N da -1 , 2,8 kg P da -1 ) on yield, protein and gluten content of wheat (Triticum aestivum L. cv. Pehlivan), grown under natural climatic conditions were investigated.
The aim of this study was to evaluate the effectiveness of a mixed biofertilizer with phosphate and potash rocks (PK biofertilizer) combined with an earthworm compound inoculated with free living diazotrophic bacteria and Cunninghamella elegans, fungi that produces chitosan, on cowpea nodulation, biomass yield and nutrient uptake. The effects of some chemical attributes from an acidic soil of the Brazilian Northeast were also studied. The treatments were as follows: a) biofertilizer enriched in N by free living diazotrophic bacteria(NPKB), applying crustaceous chitosan (ChCru) at a rate 2 mg mL-1.; b) NPKB and ChCru at a rate 4 mg mL-1.; c) NPKB and ChCru at a rate 6 mg mL-1.; d) NPKB and fungi chitosan (ChFu, 2 mg mL-1); e) NPKB+C. elegans (NPKP); f) NPKB without chitosan; g) mineral fertilizers (NPKF); and h) control without NPK fertilizer and chitosan. Biofertilizer treatments increased cowpea nodules biomass, shoot biomass, and total N, P, and K in the shoots. The largest increa...
Effect of Organic and Mineral Soil Additives on Asparagus Growth and Productivity in Replant Soils
Agronomy
The repeated cultivation of asparagus in the same field can severely reduce yield. A complex of predominantly microbial causes is suspected. Limited plant development, establishment problems, and yield loss may occur, particularly in light sandy soils. In order to address this replant problem and evaluate alternative cultivation conditions, two asparagus fields were treated with different supplements and were cultivated for 5 years to investigate their impact on yield. The results from the pot trials using soils from these fields are presented, along with the field trial findings. The trials included the incorporation of mushroom substrate (champost), Fimonit (clay mineral), mustard meal (biofumigation), and Micosat F Uno (including arbuscular mycorrhizal fungi, Trichoderma viride, and rhizosphere bacteria species). In the pot trials, the sterilised soil exhibited a growth benefit over the original soil. However, the tested additives had no significant effects in the short period of...