Memorias de investigación
Communications at congresses:
Study of frost effects in fruit production at Murcia ( Spain ) resulting from changes in temperature values

Research Areas
  • Chemistry,
  • Agriculture

Climate is often the most critical factor determining the sustainability of agricultural systems and it constitutes a ¿complex¿. It consists of a set of variables which behave coherently, essentially as a result of atmospheric physics and dynamics (Sombroek and Gommes, 1996). Low temperature is one of the most important limiting factors in the distribution of plants (Fitter and Hay 1981; Sakai and Larcher 1987). In general, plants from temperate climates are not susceptible to chilling injuries at temperatures above 0 °C and tend to show signs of damage only after ice crystals are formed within their tissues (Levitt 1980; Fitter and Hay 1981). Flower buds are one of the organs with the lowest freezing resistance (Larcher 1995). The freezing injuries of buds in laboratory experiments depend on their growth stage as well as the intensity and duration of low temperature (Strang et al. 1980; Bigras and Hebert 1996). In the field, however, the intensity and duration of low temperatures depend on height. Moreover, each individual shows a different growth stage even though they belong to the same local population. Therefore, frost survival capacity, that is, the ability of a plant to withstand adverse weather conditions, is a highly complex phenomenon in the field (Sakai and Larcher 1987). The aim of this study was to assess the frost episodes of March 2004 in the Spanish Region of Murcia, which were described as the most harmful to the fruit production (95% of the production was lost, La Tierra, 2005) because of frost damage. The researchers wanted to know if the frost episodes were the result of reiterative temperature events or changes in values of minimum temperatures.
IV Congreso Mundial de Ingenieros Agrónomos y Profesionales de la Agronomia
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Abstracts. IV Congreso Mundial de Ingenieros Agrónomos y Profesionales de la Agronomia

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Valorización de Recursos
  • Departamento: Edafología
  • Departamento: Matemática Aplicada a la Ingeniería Agronómica
  • Centro o Instituto I+D+i: Centro de Estudios e Investigación para la Gestión de Riesgos Agrarios Medioambientales (CEIGRAM)
  • Grupo de Investigación: Grupo de Automatización en Señal y Comunicaciones (GASC)