Influência de dois tipos de cobertura do solo na produtividade e na fitossanidade do morangueiro

• Author(s): Costa, Ana Catarina Loureiro
• Date: 2012
• Persistent ID: http://hdl.handle.net/10400.5/5355
• Origin: Repositório da UTL
• Subject(s): strawberry; conventional mulch; biodegradable mulch; production; fungi; thrips
• Document Type: Master thesis
• Language: Portuguese
• Advisor(s): Lima, Arlindo
• Contributor(s): Repositório da Universidade de Lisboa

Description

Mestrado em Engenharia Agronómica - Instituto Superior de Agronomia

Strawberry is an important horticulture crop which is traditionally grown in raised beds covered with plastic. The high cost of removal and treatment of plastics waste led to the study with films of natural and biodegradable source. The objectives of this study were to compare the effect of two mulchs, a conventional plastic and a biodegradable film, in productivity and the incidence and severity of diseases and pests. The test was conducted in greenhouses and outdoor and weather conditions, production, fungi and insects associated with plants and soil mycobiota were monitored. The weather conditions recorded were considered normal for the production and in the different modalities production ranged from about 22t/ha outdoor and 28t/ha in the greenhouse. Related to observation of disease symptoms and isolation from tissues were identified 33 taxa of fungi, of which 10 are associated with diseases of the crop, including Botrytis cinerea, Cylindrocarpon spp. Fusarium oxysporum, Macraphomina phaseolina and Rhizopus stolonifer. In the study of soil mycobiota 14 taxa of fungi were observed. Five thrips species belonging to the genera Aeolothrips, Frankliniella, Melanthrips and Thrips were found. There were no significant differences between the types of cover for any of the parameters studied.