Data/hora: 08/06/2024 10:08:11

Provedor de dados: | 63
País: | Brazil
Título: | Growth of citrus rootstocks under aluminium stress in hydroponics
Autores: | Pereira,Walter Esfrain; Siqueira,Dalmo Lopes de; Puiatti,Mario; Martínez,Carlos Alberto; Salomão,Luiz Carlos Chamhum; Cecon,Paulo Roberto.
Data: | 2003-02-01
Ano: | 2003
Palavras-chave: | Citrus sp.; Relative growth rate; Principal components; Nutrient solution.
Resumo: | Plants present different degrees of adaptation to aluminium (Al) concentrations in the soil, and the understanding of this characteristic can lead to a viable option for the utilization of acid soils. The objective of this experiment was to evaluate the effects of five Al concentrations (0, 50, 100, 200, and 400 mumol L-1) on the growth of 'Rangpur' lime (Citrus limonia Osbeck) and 'Volkamer' lemon (Citrus volkameriana Hort. ex Tan.), and tangerine rootstocks 'Cleópatra' (Citrus reshni Hort. ex Tan) and 'Sunki' (Citrus sunki Hort. ex Tan.), in hydroponic culture. The treatments were arranged in a randomized block design, with four replications. For all rootstocks, the relative growth rate in terms of plant total fresh matter increased under low and, decreased under large Al concentrations. Growth of the shoot, leaf area ratio and leaf weight ratio decreased for all rootstocks in the presence of Al. The 'Rangpur' lime had a decrease of the root system growth, starting from 23 mumol L-1 of Al. For the remaining rootstocks, this growth reached maximum values at 91 to 117 mumol L-1 of Al, respectively. Considering all the evaluated characteristics of plant growth, the 'Rangpur' lime was the most susceptible to Al.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100006
Editor: | São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação: | 10.1590/S0103-90162003000100006
Formato: | text/html
Fonte: | Scientia Agricola  v.60 n.1 2003
Fonte: | info:eu-repo/semantics/openAccess