Crescimento de Quatro Genótipos de Bananeira Irrigados com Diferentes Níveis de Salinidade

Teixeira, J.C.; Santana, Elza Brandão; Coelho, E. F.; Andrade, T.P.; Santos, DM; Oliveira, Renato Campos de

doi:10.12702/ii.inovagri.2014-a569

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(2 citation statements)

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“…The same result was also observed by Teixeira et al (2014), who observed in the experiment that the effect of salinity on the biometric parameters of plants follows a decreasing linear behavior, in which as the water salinity increases, biometric measurements are reduced. Munns (2002) highlighted that NaCl especially alters the activity of certain enzymes which results in the reduction in the synthesis and translocation of hormones synthesized in the root, required for leaf metabolism, resulting in less leaf growth, and thus, smaller photosynthetic area of the plant.…”

Section: Resultssupporting

confidence: 85%

“…Munns et al (2008) in studying salinity tolerance mechanisms, explain that the reduction in the leaf area is also caused by the deviation of the energy necessary for the activation and maintenance of metabolic activities associated with salinity tolerance. Accordingly, Silveira et al (2016) claim that salinity causes metabolic disturbances in plants, resulting in restrictions on growth and water transport, the latter being, according to Carmo et al (2003) and Teixeira, (2014) one of the main factors of cell wall expansion and, under limitations, would cause a reduction in the number of leaves, leaf area, and height of the banana tree.…”

Section: Resultsmentioning

confidence: 99%

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Growth promoters in banana seedlings submitted to saline irrigation

Silva

Bastos

Silva

et al. 2021

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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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Section: Resultssupporting

confidence: 85%