influência do turno de rega no crescimento e produção do tomateiro no verão em seropédica influence of the irrigation schedule on growth and production of tomato during summer

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ID: 259218
2009
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Abstract
Com o objetivo de analisar a influência do turno de rega na cultura do tomateiro para mesa (híbrido Débora tipo longa vida), realizou-se um experimento de campo, no delineamento em faixas, com quatro tratamentos e quatro repetições, de 21/09/05 a 31/01/06. Foram avaliados , o turno de rega diário (TR0); turno de rega alternado de um dia (TR1); turno de rega alternado de dois dias (TR2); e turno de rega alternado de três dias (TR3). Para todos os tratamentos foi reposto 100% da ETc. Durante o experimento, foram realizadas seis coletas para determinação da biomassa e da área foliar visando o estudo de análise do crescimento das plantas, sendo ajustadas equações para estimativa dos índices fisiológicos de crescimento da cultura. Foi possível constatar que o pico máximo de crescimento ocorreu entre 80 e 90 dias após o transplante, não sendo possível no entanto, diferenciar um tratamento que proporcionasse melhor crescimento. Os resultados obtidos indicaram que o turno de rega de três dias reduziu o número de frutos grandes (>60 mm) e aumentou o número de frutos miúdos (40 a 50 mm). Contudo, o turno de rega de dois dias proporcionou produção de tomate igual ou superior ao de turnos mais frequentes e com maior eficiência de uso de água. Para as condições de primavera-verão de 2005-2006 em Seropédica-RJ, o turno de rega alternado de dois dias mostrou-se mais favorável para recomendação aos agricultores.
The influence of the irrigation schedule was evaluated on the tomato culture, Debora hybrid for salad, in a field experiment, in a split plot design with four treatments and four replications, conducted from September, 21st, 2005 to January, 31st, 2006. We evaluated the irrigation every day (TR0); irrigation every two days (TR1); irrigation every three days (TR2); irrigation every four days (TR3). 100% of the ETc was applied in all treatments. During the essay, six samplings of plants were performed to determine the plant weight and leaf area to adjust equations for the estimation of the growth parameters. The maximum growth was obtained between 80 and 90 days after transplanting, but in these experimental conditions the growth analysis did not discriminate the treatments. The irrigation schedule of three days caused a reduction in the number of big fruits (>60 mm) and increase in the number of small fruits (40-50 mm). However, the irrigation frequency of two days showed the same or higher fruit quality of the smaller intervals, but with improved water use efficiency. For the spring-summer of 2005-2006 conditions, at Seropédica, Rio de Janeiro State, Brazil, the irrigation schedule of two days was the best to be recommended for the farmer.
Reference Key
monte2009horticulturainfluncia Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;José A Monte;Adilson de S Pacheco;Daniel F de Carvalho;Carlos Pimentel
Journal research on biomedical engineering
Year 2009
DOI
10.1590/S0102-05362009000200018
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000200018
Keywords
fruit qualityplant culture lycopersicon esculentum

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