Mineral nutrition of peach palm seedlings under different salinity levels

Mineral nutrition of peach palm seedlings under different salinity levels

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The productive potential of plants may be affected by nutritional disorders induced by saline stress. The objective was to study the influence of different salinity levels on mineral nutrition of peach palm (Bactris gasipaes H.B.K.) seedlings in greenhouse conditions with nutritive solution. The experimental design was in randomized blocks, with seven treatments and four replications. The treatments consisted of the following dosages (mmol L-1): 0.0 of Na and 0.5 of Cl; 1.0 of Na and 0.5 of Cl (control); and 5.0, 15.0, 30.0, 60.0 and 120.0 of NaCl. The content of the macronutrients varied with the salinity, there was reduction of P and K in the roots, K and Ca in the leaves, and S in different parts of the plants. Therefore, there was increase of Na and Cl in different parts of the plant. The enhancement of the ratios Na/K, Na/Ca, Na/Mg, Cl/N, Cl/P and Cl/S induced a nutritional imbalance in the plant.

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Main Authors: Fernandes, Antonio Rodrigues, de Carvalho, Janice Guedes, Curi, Nilton, Pinto, José Eduardo Brasil Pereira, Guimarães, Paulo de Tácito Gontijo
Format: Digital revista
Language:por
Published: Pesquisa Agropecuaria Brasileira 2002
Online Access:https://seer.sct.embrapa.br/index.php/pab/article/view/6509
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spelling rev-pab-br-article-65092014-07-21T18:51:35Z Mineral nutrition of peach palm seedlings under different salinity levels Nutrição mineral de mudas de pupunheira sob diferentes níveis de salinidade Fernandes, Antonio Rodrigues de Carvalho, Janice Guedes Curi, Nilton Pinto, José Eduardo Brasil Pereira Guimarães, Paulo de Tácito Gontijo Bactris gasipaes; nutritional disturbance; nutrient absorption; mineral nutrients; salt tolerance Bactris gasipaes; distúrbio nutricional; absorção de nutriente; nutriente mineral; tolerância ao sal The productive potential of plants may be affected by nutritional disorders induced by saline stress. The objective was to study the influence of different salinity levels on mineral nutrition of peach palm (Bactris gasipaes H.B.K.) seedlings in greenhouse conditions with nutritive solution. The experimental design was in randomized blocks, with seven treatments and four replications. The treatments consisted of the following dosages (mmol L-1): 0.0 of Na and 0.5 of Cl; 1.0 of Na and 0.5 of Cl (control); and 5.0, 15.0, 30.0, 60.0 and 120.0 of NaCl. The content of the macronutrients varied with the salinity, there was reduction of P and K in the roots, K and Ca in the leaves, and S in different parts of the plants. Therefore, there was increase of Na and Cl in different parts of the plant. The enhancement of the ratios Na/K, Na/Ca, Na/Mg, Cl/N, Cl/P and Cl/S induced a nutritional imbalance in the plant. O potencial produtivo das plantas pode ser afetado por desordens nutricionais, induzidas pelo estresse salino. O objetivo deste trabalho foi estudar a influência de diferentes níveis de salinidade na nutrição mineral de mudas de pupunheira (Bactris gasipaes H.B.K.), mediante o uso de solução nutritiva, em casa de vegetação. O experimento foi instalado em blocos ao acaso, com sete tratamentos e quatro repetições. Os tratamentos constaram das seguintes doses (mmol L-1): 0,0 de Na e 0,5 de Cl; 1,0 de Na e 0,5 de Cl (controle); e 5,0, 15,0, 30,0, 60,0 e 120,0 de NaCl. Os teores dos macronutrientes variaram em razão da salinidade, e verificou-se que o P e K apresentaram seus teores reduzidos nas raízes, o K e o Ca, nas folhas e o S, nas diferentes partes, enquanto o Na e o Cl apresentaram teores incrementados nas diferentes partes da planta. As relações Na/K, Na/Ca, Na/Mg, Cl/N, Cl/P e Cl/S aumentaram, causando um desbalanço nutricional na planta. Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira 2002-11-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://seer.sct.embrapa.br/index.php/pab/article/view/6509 Pesquisa Agropecuaria Brasileira; v.37, n.11, nov. 2002; 1613-1619 Pesquisa Agropecuária Brasileira; v.37, n.11, nov. 2002; 1613-1619 1678-3921 0100-104x por https://seer.sct.embrapa.br/index.php/pab/article/view/6509/3566
institution EMBRAPA
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-pab-br
tag revista
region America del Sur
libraryname Sistema de bibliotecas de EMBRAPA
language por
format Digital
author Fernandes, Antonio Rodrigues
de Carvalho, Janice Guedes
Curi, Nilton
Pinto, José Eduardo Brasil Pereira
Guimarães, Paulo de Tácito Gontijo
spellingShingle Fernandes, Antonio Rodrigues
de Carvalho, Janice Guedes
Curi, Nilton
Pinto, José Eduardo Brasil Pereira
Guimarães, Paulo de Tácito Gontijo
Mineral nutrition of peach palm seedlings under different salinity levels
author_facet Fernandes, Antonio Rodrigues
de Carvalho, Janice Guedes
Curi, Nilton
Pinto, José Eduardo Brasil Pereira
Guimarães, Paulo de Tácito Gontijo
author_sort Fernandes, Antonio Rodrigues
title Mineral nutrition of peach palm seedlings under different salinity levels
title_short Mineral nutrition of peach palm seedlings under different salinity levels
title_full Mineral nutrition of peach palm seedlings under different salinity levels
title_fullStr Mineral nutrition of peach palm seedlings under different salinity levels
title_full_unstemmed Mineral nutrition of peach palm seedlings under different salinity levels
title_sort mineral nutrition of peach palm seedlings under different salinity levels
description The productive potential of plants may be affected by nutritional disorders induced by saline stress. The objective was to study the influence of different salinity levels on mineral nutrition of peach palm (Bactris gasipaes H.B.K.) seedlings in greenhouse conditions with nutritive solution. The experimental design was in randomized blocks, with seven treatments and four replications. The treatments consisted of the following dosages (mmol L-1): 0.0 of Na and 0.5 of Cl; 1.0 of Na and 0.5 of Cl (control); and 5.0, 15.0, 30.0, 60.0 and 120.0 of NaCl. The content of the macronutrients varied with the salinity, there was reduction of P and K in the roots, K and Ca in the leaves, and S in different parts of the plants. Therefore, there was increase of Na and Cl in different parts of the plant. The enhancement of the ratios Na/K, Na/Ca, Na/Mg, Cl/N, Cl/P and Cl/S induced a nutritional imbalance in the plant.
publisher Pesquisa Agropecuaria Brasileira
publishDate 2002
url https://seer.sct.embrapa.br/index.php/pab/article/view/6509
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