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Crescimento do Cafeeiro Conilon Irrigado com Água Salina

Author(s): Aline Azevedo Nazário | Giovanni de Oliveira Garcia | Ivo Zution Gonçalves | João Carlos Madalão | Gláucio Luciano Araujo

Journal: Engenharia Ambiental : Pesquisa e Tecnologia
ISSN 1678-2178

Volume: 7;
Issue: 3;
Start page: 178;
Date: 2010;
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Keywords: salt stress | irrigation | Coffea canephora

In order to evaluate the initial growth of the Robusta variety Conilon Capixaba under irrigation with saline water was an experiment in a greenhouse in a completely randomized in a factorial 5x5 with five treatments (one irrigated with fresh water and saline water with four concentrations of 1.0, 2.0, 3.0 and 4.0 dS m-1), five evaluation periods (0, 60, 120, 180 and 240 days after planting) with four replications. The effects of irrigation with saline water on the initial growth of the coffee was made through an analysis of growth. With these results the irrigation with saline water compared with fresh water, within a period of evaluation, reduced the dry matter of shoots, roots and all, beyond the relative growth rate and the ratio shoot / root followed increasing the ratio of leaf area and leaf area. On the other hand the increase in soil salinity resulting from irrigation with saline water reduced the dry matter of shoots, roots and all, the total leaf area from 180 days after planting, followed by reduction in leaf area ratio and the ratio shoot / root after 60 days after planting.
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