Gas exchange and leaf area of banana plants under salt stress inoculated with growth-promoting bacteria

Rodrigues, Ana Janaina Oliveira; Araújo, Beatriz de Abreu; Bezerra, Marlos Alves; Silva, Christiana de Fátima Bruce da; Sousa, Alan Bernard Oliveira de; Nogueira, Cynthia Maria Rodrigues

doi:10.1590/1807-1929/agriambi.v25n11p779-786

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…These results may be explained by the better plant nutrition and higher Ci, gs, and A in the current study (Figure 2A-C), which contribute to greater growth and biomass accumulation of the plants. Our results were supported by the previous findings that higher net assimilation of CO 2 in the photosynthetic process and carbon accumulation allows the formation of new leaves and increased final yield [17].…”

Section: Discussionsupporting

confidence: 91%

Inoculation with Azospirillum brasilense Strains AbV5 and AbV6 Increases Nutrition, Chlorophyll, and Leaf Yield of Hydroponic Lettuce

da Silva Oliveira,

Jalal,

Vitória

et al. 2023

Plants

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Inoculation with Azospirillum brasilense has promisingly increased plant yield and nutrient acquisition. The study aimed to estimate the dose of A. brasilense that increases yield, gas exchange, nutrition, and foliar nitrate reduction. The research was carried out in a greenhouse at Ilha Solteira, in a hydroponic system in randomized blocks with four replicates. The treatments consisted of doses of inoculation with A. brasilense strains AbV5 and AbV6 via nutrient solution (0, 8, 16, 32, and 64 mL 100 L−1). Inoculation with A. brasilense at calculated doses between 20 and 44 mL provided the highest fresh and dry mass of shoots and roots, number of leaves, and leaf yield. In addition, the calculated doses of inoculation with A. brasilense increased the accumulation of N, P, K, Ca, Mg, S, B, Fe, Mn, and Zn in shoots and roots, except the accumulation of Ca in roots. It also increased cell membrane integrity index (15%), relative water content (13%), net photosynthesis rate (85%), intracellular CO2 concentration (15%), total chlorophyll (46%), stomatal conductance (56%), transpiration (15%), and water use efficiency (59%). Hence, inoculation with A. brasilense at doses between 20 and 44 mL 100 L−1 is considered the best approach for increasing the growth, yield, accumulation of nutrients, and gas exchange of hydroponically grown iceberg lettuce.

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Section: Discussionsupporting

confidence: 91%

Inoculation with Azospirillum brasilense Strains AbV5 and AbV6 Increases Nutrition, Chlorophyll, and Leaf Yield of Hydroponic Lettuce

da Silva Oliveira,

Jalal,

Vitória

et al. 2023

Plants

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“…Turnip caused a reduction in LA and DM production of various canola hybrids (Brandler et al 2021), which consequently can affect crop productivity and quality. With the reduction of LA of soybean due to competition with weeds, there was also a reduction of DM (Caratti et al 2016), which is probably due to the lower production of photoassimilates by the crop (Rodrigues et al 2021).…”

Section: Resultsmentioning

confidence: 99%

Interference and economic damage level of turnips in rye

Galon,

Portes,

Franceschetti

et al. 2023

Commun. Plant Sci.

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Turnip (Raphanus sativus) is one of the weeds that have caused the most quantitative and qualitative losses by infesting winter crops, including rye. Therefore, the objective of this work was to test mathematical models and identify explanatory variables to determine the economic damage level (EDL) of the weed turnip in rye genotypes. Treatments consisted of rye genotypes (BRS Serrano, IPR 89, BRS Progresso, and Crioulo) and turnip densities ranging from 0 to 648 plants m -2 in competition with the crop. Plant density, leaf area, soil cover, and shoot dry matter of the turnip were evaluated 30 days after species emergence. For rye, grain yield, control cost, bag price, and control efficiency were determined. The rectangular hyperbola model was efficient for estimating rye yield loss due to turnip interference. Plant density best fitted the rectangular hyperbola model. BRS Serrano, BRS Progresso, and Crioulo genotypes showed greater competitiveness and higher EDL values (from 2.03 to 4.36 plants m -2 ) in the presence of turnip. The lowest EDL values ranged from 1.31 to 2.19 plants m -2 , for the genotype IPR 89, which showed the lowest competitive ability. EDL values decreased with increasing grain yield, price of a bag of rye, herbicide efficiency, and with decreasing turnip control costs, justifying the use of control measures at lower weed densities. Highlighted Conclusions1. The plant density of ryegrass showed better fit to the rectangular hyperbola. 2. The ryegrass genotypes BRS Serrano, BRS Progresso and Crioulo showed greater competitive ability in the presence of turnips. 3. The rye genotype IPR 89 had the lowest EDL values and the least competitive ability in the presence of turnip.

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Growth promoters in banana seedlings submitted to saline irrigation

Silva

Bastos

Silva

et al. 2021

Reveng

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The objective of this study was to evaluate the effect of inoculation of a plant growth promoter bacteria on the growth of micropropagated banana seedlings cultivar Williams under irrigation with water at different saline levels. The experiment was carried out in a greenhouse at Embrapa Agroindústria Tropical, Fortaleza, State of Ceará. The experimental design was in randomized blocks, in a 3 x 4 factorial scheme, corresponding to the three factors for growth promotion (negative control: water; Osmocote® slow-release fertilizer and a Bacillus spp. bacterium) subjected to four levels of irrigation water salinity (S1 = 0.5; S2 = 1.5; S3 = 3.0 and S4 = 4.5 dS m-1), and five blocks, totaling 60 experimental units. Sixty days after transplanting (DAT) and application of treatments, the following variables related to plant growth were measured: number of leaves (NL), pseudostem diameter (PD), plant height (PH), leaf area (LA), and root length (RL). The rise in saline levels in the irrigation water negatively influenced the variables number of leaves, pseudostem diameter, root length, and leaf area, showing a decreasing linear behavior. The variables number of leaves and leaf area of seedlings inoculated in association with Bacillus spp. did not differ from each other, regardless of the saline level. This indicated a likely increase in the response to the salinity tolerance of the seedlings. Treatment with Osmocote® fertilizer differed statistically for variables plant height, pseudostem diameter, and leaf area.

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Gas exchange and leaf area of banana plants under salt stress inoculated with growth-promoting bacteria

Cited by 4 publications

References 22 publications

Inoculation with Azospirillum brasilense Strains AbV5 and AbV6 Increases Nutrition, Chlorophyll, and Leaf Yield of Hydroponic Lettuce

Inoculation with Azospirillum brasilense Strains AbV5 and AbV6 Increases Nutrition, Chlorophyll, and Leaf Yield of Hydroponic Lettuce

Interference and economic damage level of turnips in rye

Growth promoters in banana seedlings submitted to saline irrigation

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