Abstract
ABSTRACT The objective of this work was to technically and economically evaluate the productivity of tomato grown under different irrigation frequencies in the coast of Ceará, Brazil. The experiment was conducted in the experimental area of the Federal University of Ceará, Fortaleza, State of Ceará, Brazil, from August to December of 2011 and 2012. A randomized block experimental design was used in the two crop cycles, with six irrigation frequencies, consisted of 2 (F2), 3 (F3), 4 (F4), 5 (F5), 6 (F6) and 7 (F7) days of interval between irrigations, and four replications. The treatments were evaluated at twenty days after transplanting (DAT), when the plants were fully acclimated to the field. The harvesting began at seventy DAT and ended at ninety DAT. The variables analyzed were fruit length, diameter and weight, number of fruits per plant and fruit yield. The economic performance of the crop was also evaluated. Tomato producers of the coastal region of the State of Ceará, who aim to increase economic return, i.e., net income, must adopt a two- day irrigation frequency (F2).
Highlights
Tomato (Lycopersicum esculentum Mill.) is originally from the Andean region, Ecuador to northern Chile (HIGUTI et al 2010)
Field experiments were conducted from August to December of 2011 and 2012 in the experimental area of the Agrometeorological Station of the Federal University of Ceará (UFC), Fortaleza, State of Ceará (CE), Brazil (3°44'45''S, 38°34'55''W and 20 m of altitude)
The effects of the different irrigation frequencies were assessed at twenty days after transplanting (DAT), when the plants were fully acclimated to the field
Summary
Tomato (Lycopersicum esculentum Mill.) is originally from the Andean region, Ecuador to northern Chile (HIGUTI et al 2010) It is the second most important vegetable grown in Brazil (RONCHI et al, 2010). Researches have shown the effects of carefully managed irrigations, presenting their contributions to increase yield of several vegetables and improve product quality (CARVALHO et al, 2011; SILVA et al, 2014). In this context, the objective of this work was to technically and economically evaluate the productivity of tomato grown under different irrigation frequencies in the coast of Ceará, Brazil
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