Correlation and regression models of tomato yield in response to plant growth by different bacterial inoculants and inoculation methods

2021 ◽  
Author(s):  
Tulja Sanam ◽  
Triveni S ◽  
Sridhar Goud Nerella ◽  
Santosh Nagappa Ningoji ◽  
Suseelendra Desai
Keyword(s):  
Plant Growth ◽  
Regression Models ◽  
Inoculation Methods ◽  
Bacterial Inoculants ◽  
Tomato Yield

Enhanced tomato plant growth in soil under reduced P supply through microbial inoculants and microbiome shifts

2019 ◽  
Vol 95 (9) ◽  
Author(s):  
Namis Eltlbany ◽  
Mohamed Baklawa ◽  
Guo-Chun Ding ◽  
Dinah Nassal ◽  
Nino Weber ◽  
...  
Keyword(s):  
Plant Growth ◽  
Root Growth ◽  
Growth Promotion ◽  
Bacterial Community Composition ◽  
Soil Microbial Communities ◽  
Rrna Gene ◽  
Pseudomonas Sp ◽  
Tomato Plants ◽  
Soil P ◽  
Bacterial Inoculants

ABSTRACT Soil microbial communities interact with roots, affecting plant growth and nutrient acquisition. In the present study, we aimed to decipher the effects of the inoculants Trichoderma harzianum T-22, Pseudomonas sp. DSMZ 13134, Bacillus amyloliquefaciens FZB42 or Pseudomonas sp. RU47 on the rhizosphere microbial community and their beneficial effects on tomato plants grown in moderately low phosphorous soil under greenhouse conditions. We analyzed the plant mass, inoculant colony forming units and rhizosphere communities on 15, 22, 29 and 43 days after sowing. Selective plating showed that the bacterial inoculants had a good rhizocompetence and accelerated shoot and root growth and nutrient accumulation. 16S rRNA gene fingerprints indicated changes in the rhizosphere bacterial community composition. Amplicon sequencing revealed that rhizosphere bacterial communities from plants treated with bacterial inoculants were more similar to each other and distinct from those of the control and the Trichoderma inoculated plants at harvest time, and numerous dynamic taxa were identified. In conclusion, likely both, inoculants and the rhizosphere microbiome shifts, stimulated early plant growth mainly by improved spatial acquisition of available nutrients via root growth promotion. At harvest, all tomato plants were P-deficient, suggesting a limited contribution of inoculants and the microbiome shifts to the solubilization of sparingly soluble soil P.

Study of plant pathogen suppression the synergistic effect between biofertilizer and irradiated oligochitosan of tomato

2015 ◽  
Vol 15 (2) ◽  
pp. 80-85
Author(s):  
Ts Narandelger ◽  
B Delgermaa ◽  
B Odonchomeg ◽  
J Baigalmaa ◽  
O Sunjidmaa
Keyword(s):  
Plant Growth ◽  
Synergistic Effect ◽  
Plant Pathogen ◽  
Growth And Yield ◽  
Growth Promoter ◽  
Synergy Effect ◽  
Tomato Yield ◽  
Pathogen Suppression ◽  
Positive Effect ◽  
Test Plants

Evaluation of the synergy effect between bio-fertilizer and irradiated oligochitosan was conducted to determine the growth and yield of the test plants. Study for synergistic effect of biofertilizer and irradiated oligochitosan, some positive effect such as plant growth promoter and pathogen suppression in tomato yield in the green house pot experiment. It was guessed that oligocitosan induced resistance for seedling treated. Data showed synergistic effect using disease control intensities, In this case, synergistic effect between biofertilizer and oligochitosan is clearly positive.Mongolian Journal of Agricultural Sciences Vol.15(2) 2015; 80-85

scholarly journals Improving Growth, Yield, and Quality of Tomato Plants (Solanum lycopersicum L) by the Application of Moroccan Seaweed-Based Biostimulants under Greenhouse Conditions

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1373
Author(s):  
Abir Mzibra ◽  
Abderrahim Aasfar ◽  
Mehdi Khouloud ◽  
Youssef Farrie ◽  
Rachid Boulif ◽  
...  
Keyword(s):  
Plant Growth ◽  
Fruit Quality ◽  
Growth Parameters ◽  
Growth Yield ◽  
Principal Component ◽  
Quality Parameters ◽  
Tomato Plants ◽  
Tomato Yield ◽  
Yield And Quality

Background: Seaweed-derived extracts have gained popularity in agriculture as bioproducts with phytostimulatory effects on plant growth and development. Methods: This study assessed the effect of polysaccharide-enriched extracts (PEEs) derived from six Moroccan seaweeds on tomato growth, yield, and fruit quality. PPEs were applied to tomato plants as soil drench in a greenhouse experiment. Growth parameters including plant height (cm) and number of leaves, flowers, and flower buds were recorded every 15 days. Yield and quality parameters of the harvested fruits were also recorded after each harvest. Results: The obtained results showed that all PEEs improved the growth, yield, and fruit quality of treated tomato plants. According to principal component analysis, the presence of SO4, galactose, glucose, and maltose in the characterized polysaccharides was closely associated with their effect on plant growth, yield, and fruit quality parameters. Conclusions: PEEs obtained from Gelidium crinale,Schizymenia dubyi, Fucus spiralis, and Bifurcaria bifurcata exhibited the highest biostimulant effects and could be used as bioproducts for improved tomato yield and fruit nutritional quality.

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 EFFECT OF INOCULATION METHODS OF BIOZOTE-MAX (PLANT GROWTH PROMOTING RHIZOBACTERIA-PGPR) ON GROWTH AND YIELD OF RICE UNDER NATURALLY SALT-AFFECTED SOIL

2017 ◽  
pp. 24-26
Author(s):  
MUHAMMAD ARSHAD ULLAH, IMDAD ALI MAHMOOD, ARSHAD ALI ◽  
QAISER NAWAZ ◽  
TARIQ SULTAN, BADAR-UZ-ZAMAN
Keyword(s):  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Growth And Yield ◽  
Rhizobial Strain ◽  
Inoculation Methods ◽  
Seedling Root ◽  
Seed Inoculation ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Paddy Yield

A field experiment was carried out at the experimental farm of Soil Salinity Research Institute, Pindi Bhattian during 2016-17 to assess evaluate different Rhizobial inoculation methods on growth and yield of rice (Oryza sativa) cv. Basmati-385 under naturally salt-affected soil (pH= 8.12, ECe= 7.88 dS m-1and SAR=24.96). Seeds of rice were inoculated with Biozote–Max (Plant Growth Promoting Rhizobacteria-PGPR) produced in Soil Biology and Biotechnology Research Programme of Land Resources Research Institute, National Agricultural research Centre (NARC), Islamabad under PARC-Agrotech. Company (Pvt) Ltd. NARC, Islamabad in three ways i.e. rice seeds inoculated for direct seeding and nursery and dipping seedling roots in the solutions of these rhizobial strains comparable of control un-inoculated (control) by each inoculation method. The performances of Rhizobial strain Biozote–Max used as seed and seedling root dipping inoculation were superior to uninoculated control in all the parameters of the rice crop. Among the treatments, seed and seedling root dipping inoculation with Rhizobial strain Biozote–Max performed best in recording plant height, panicle length, number of tillers, 1000-grain weight and grain yield of rice crop. Maximum tillering was observed with all strains under different inoculation methods. Although, the strains performed better as compared to control, however, dipping of nursery roots produced significantly higher yield followed by seed inoculation for direct seeding. Overall, among all the inoculation methods seedling root dipping produced comparable paddy yield. The highest paddy yield (367 g m-2) was harvested with SBCC (M8) seed inoculation which was 13% more than that of un-inoculated (control).

Plant growth-promoting bacteria as a tool to improve salinity tolerance in sweet pepper

2012 ◽  
Vol 39 (1) ◽  
pp. 82 ◽  
Author(s):  
Francisco M. del Amor ◽  
Paula Cuadra-Crespo
Keyword(s):  
Stomatal Conductance ◽  
Plant Growth ◽  
Leaf Gas Exchange ◽  
Photochemical Efficiency ◽  
Sweet Pepper ◽  
Saline Stress ◽  
Plant Growth Promoting Bacteria ◽  
Bacterial Inoculants ◽  
Photochemical Efficiency Of Psii ◽  
Plant Growth Promoting

To characterise the effect of bacterial inoculants (Azospirillum brasilense and Pantoea dispersa) on the response of sweet pepper (Capsicum annuum L.) to saline stress, plants were exposed to 0, 40, 80 and 120 mM NaCl in solution. The effect on plant growth; leaf gas exchange; NO3–, Cl–, K+ and Na+ accumulation; and chlorophyll fluorescence and content were investigated. Total plant DW was reduced significantly by salinity but when inoculants were applied, DW was increased. Inoculated plants showed higher DW accumulation in the roots. Salinity levels up to 80 mM NaCl did not affect the net assimilation rate in inoculated plants but 40 mM NaCl was enough to reduce this parameter in non-inoculated plants. The leaf area ratio was not modified substantially by inoculation. The leaf Cl– concentration of inoculated plants was reduced at the highest salinity, compared with control plants, and NO3– concentration increased markedly. A higher K+ : Na+ ratio was found in inoculated plants. Leaf photosynthesis and stomatal conductance were impaired significantly at moderate, but not low, salinity, the effect of inoculation being enough to maintain higher stomatal conductance under higher stress. The photochemical efficiency of PSII and the relative chlorophyll content were not affected by the inoculants. Thus, the effects of the inoculants on the response to salinity were due mainly to stomatal regulation of photosynthesis rather than effects on biochemical limitations on photosynthesis. These results indicate the benefits of these bacterial inoculants in ameliorating the deleterious effect of NaCl in a salt-sensitive crop like sweet pepper.

scholarly journals Growth and ectomycorrhization of banj oak plants co-inoculated with Scleroderma bovista and mycorrhizosphere bacteria

2015 ◽  
Vol 7 (1) ◽  
pp. 265-272
Author(s):  
Anurag Yadav ◽  
R.C. Dubey ◽  
Kusum Yadav
Keyword(s):  
Plant Growth ◽  
Lateral Roots ◽  
Dry Weight ◽  
Ectomycorrhizal Fungus ◽  
Growth Enhancement ◽  
Bacterial Inoculants ◽  
Uninoculated Control ◽  
Triple Treatment ◽  
Banj Oak ◽  
Quercus Leucotrichophora

Effect of composite treatment of ectomycorrhizal fungus (EMF), Scleroderma bovista, along with mycorrhizosphere bacterial inoculants was studied for nine months on Quercus leucotrichophora plants grown in nursery glasshouse. Seven treatments comprising of one uninoculated control; two bacterial controls, Bacillus subtilis MB14 and Pseudomonas fluorescens MB 9, respectively; EMF control, S. bovista; two combinations of two bacterial treatments with EMF and one triple treatment of two bacteria with EMF, were used in the study. The ninth month of sampling showed that triple treatment of two strains of bacteria with EMF maximally enhanced root length (38.86 cm), dry weight (6.746 g), short roots (351.6), lateral roots (24.8) and EMF colonization (34.8%) of banj oak plant, which was fairly higher than uninoculated and bacterial controls. Bacteria treated plants showed no plant growth enhancement, whereas EMF treatment fairly enhanced plant growth. The co-inoculation practice can help oak plant in achieving the mycorrhization rate even with lower EMF doses. These findings will be beneficial for achieving the effective banj oak replantation in the Himalayan region.

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