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- Title
CRESCIMENTO DO CAFEEIRO CONILON CULTIVAR "ES8122-JEQUITIBÁ" EM FUNÇÃO DA FRAÇÃO DE ÁGUA TRANSPIRÁVEL NO SOLO.
- Authors
RODRIGUES RIBEIRO, WILIAN; AGNOLETTE CAPELINI, VINICIUS; SOARES FERREIRA, DANIEL; SCARAMUSSA GONÇALVES, MORGANA; FIALHO DOS REIS, EDVALDO
- Abstract
The state of Espirito Santo stands out as the largest producer of Conilon coffee in Brazil, but water deficit has been the most limiting abiotic factor of production. Thus, the objective of this work was to quantify the influence of water deficit on the soil, by the fraction of transpirable soil water (FTSW) methodology, verifying the critical value where the reduction of relative transpiration (RT), and the potential plant growth, through the variables: relative leaf area (RLA) and relative height (RH). The present study was conducted in a greenhouse of the Federal University of Espírito Santo, located in the city of Alegre-ES. The nine clones that make up the cultivar "ES8122-Jequitibá", species Coffea canephora, were used. The experiment consisted of two treatments and four repetitions. The treatments were: T0 (without water deficit, plants irrigated during the whole experiment) and T1 (induced water deficit until the plants reached 10% of the relative transpiration of treatment T0). Each clone showed a specific behavior as function of the FTSW decrease. Clone 02 was the most susceptible, presenting a reduction in sweating by FTSW values of 0.90. The most resistant, clone 09, kept the transpiratory process constant up to FTSW values of 0.56.
- Publication
Revista IRRIGA - Brazilian Journal of Irrigation & Drainage, 2019, Vol 24, Issue 3, p512
- ISSN
1413-7895
- Publication type
Article
- DOI
10.15809/irriga.2019v24n3p512-526