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Physiological and vegetative behavior of banana cultivars under irrigation water salinity AGRIAMBI
Santana Júnior,Edvaldo B.; Coelho,Eugênio F.; Gonçalves,Karoline S.; Cruz,Jailson L..
ABSTRACT The purpose of the study was to evaluate the effect of salinity levels of irrigation water on physiology and growth of banana cultivars during the vegetative stage. The experiment was carried out following a completely randomized design in split plots, with four levels of salinity in irrigation water (0.5, 2.0, 3.0 and 4.0 dS m-1) and four banana cultivars (Pacovan, Prata Anã, BRS Platina and Princesa) with three repetitions. Stomatal conductance, transpiration, relative water content, leaf water potential and proline concentration were evaluated at 150 days after transplanting (DAT), besides plant height, stem diameter and leaf area. All variables showed sensitivity to the increase of salinity level of irrigation water. The results of soil water...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Musa spp.; Relative transpiration; Electrical conductivity; Drip irrigation.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000200082
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Potassium estimation in the soil solution based on electrical conductivity and soil water content AGRIAMBI
Andrade Neto,Torquato M. de; Coelho,Eugênio F.; Santana,José A. do V.; Santana Júnior,Edvaldo B.; Alves,Márcio da S..
The objective of this work was to evaluate and to validate models for estimating potassium in the soil solution as a function of bulk electrical conductivity (ECw), soil water content (q) and a soil solution electrical conductivity (ECss). Treatments consisted of using three concentrations of injecting solution of potassium chloride (1.0, 2.5 and 4.0 g L-1) which were applied by two trickle irrigation systems (microsprinkler and drip) during the first cycle of the banana crop cv. Terra Maranhão. Results showed that it is feasible to estimate potassium concentration in the soil solution from data of ECss and q obtained by time domain reflectometry (TDR) using an equation that combined a linear and a potential model. The estimated values of potassium...
Tipo: Info:eu-repo/semantics/article Palavras-chave: TDR; Trickle irrigation; Fertirrigation.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662012000600005
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