Efecto de diferentes cubiertas plásticas fotoselectivas sobre la cosecha y calidad de un cultivo de tomate

  1. J. López-Marín 1
  2. A. González 1
  3. C. Egea-Gilabert 2
  4. J.A. Fernández 2
  1. 1 Instituto Murciano de Investigacion y Desarrollo Agrario y Alimentario

    Instituto Murciano de Investigacion y Desarrollo Agrario y Alimentario

    La Alberca de Záncara, España

  2. 2 Universidad Politécnica de Cartagena

    Universidad Politécnica de Cartagena

    Cartagena, España

    ROR https://ror.org/02k5kx966

VII Congreso Ibérico de Agroingeniería y Ciencias Hortícolas: innovar y producir para el futuro. Libro de actas
  1. Ayuga Téllez, Francisco (coord.)
  2. Masaguer Rodríguez, Alberto (coord.)
  3. Mariscal Sancho, Ignacio (coord.)
  4. Villarroel Robinson, Morris (coord.)
  5. Ruiz-Altisent, Margarita (coord.)
  6. Riquelme Ballesteros, Fernando (coord.)
  7. Correa Hernando, Eva Cristina (coord.)

Publisher: Fundación General de la Universidad Politécnica de Madrid

ISBN: 84-695-9055-3 978-84-695-9055-3

Year of publication: 2014

Pages: 1563-1568

Congress: Congreso Ibérico de Agroingeniería y Ciencias Hortícolas (7. 2013. Madrid)

Type: Conference paper


Ultraviolet (UV)-absorbing plastic films are being used as a photoselective barrier to control insect vectors and associated virus diseases in different horticultural crops. An experiment was carried out in Murcia (south-eastern Spain) in 4 tunnel greenhouses to evaluate the effects of ultraviolet (UV)-blocking films on tomato yield and quality. Each greenhouse had a floor area of 50 m2 . The orientation was N-S. Four covering films were tested: T1 co-extruded three layer 200 μ, T2 thermal PE 200 μ, T3 long life PE 180 μ and T4 UV-absorbing PE 200 μ. Fruits were harvested twice a week at turning ripening stage. Radiation outside and inside of each greenhouse were measured with a photo-radiometer. The following parameters were determined: number of fruits per plant, fruit weight, early and total yield, colour, fruit firmness, juiciness, dry matter, pH, electrical conductivity (EC), titratable acidity (TA) and soluble solids (TSS). At the beginning of the experiment plastic films had a 30 (T1), 55 (T2), 95 (T3) and 99 (T4) % of reduction in incoming UV-A, respectively. Covering films had worse radiation properties after 158 days, especially those with UV-blocking characteristics. The agronomical results showed T4 had the highest early production and the lowest final production. Covering materials hardly affected tomato quality, only T3 and T4 types influenced fruit quality, promoting EC and TSS values, respectively.