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Provedor de dados:  REA
País:  Brazil
Título:  Effects of light intensity modification by reflective aluminized screenhouse on sweet pepper growth and yield
Autores:  Ferreira,Regis de C.
Bezerra,Ricardo de S.
Rosa,Juliano Q. S.
Data:  2014-08-01
Ano:  2014
Palavras-chave:  Capsicum annuum L.
Photosynthetically active radiation
Solar radiation use efficiency
Resumo:  Sweet pepper is one of the ten most consumed vegetables in world. Although it develops better under protected environment, the cultivation in tropical countries is practiced in open field due greenhouse structure higher costs. Unfortunately, such practice has compromised the crop to reach either best yield or fruit quality. Since production and cost are the most important criteria for agricultural production, we aimed to evaluate reflective aluminized polypropylene shading net influence on sweet pepper (Capsicum annuum L.) growth and production as intermediary alternative for low/middle income producers from Brazilian tropical regions. Sweet pepper Magali R hybrid was cultivated in two environments: FC - field conditions (control) and RS - reflective shading net with 40% shading rate. RS caused reductions in incident solar radiation (SR) and photosynthetically active radiation (PAR) on the amount of 46.3% and 48.3%, respectively. There were no significant changes in temperature and relative humidity recorded for the two environments. In addition, RS allowed best use efficiency of photosynthetically active radiation since it promoted higher values of plant height, leaf number and area index than those reached on FC on the amount of 29%, 22% and 80 %, respectively. Similarly, plants grown under RS showed higher yield and marketable fruits and promoted less loses by sunscald.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Associação Brasileira de Engenharia Agrícola
Relação:  10.1590/S0100-69162014000400003
Formato:  text/html
Fonte:  Engenharia Agrícola v.34 n.4 2014
Direitos:  info:eu-repo/semantics/openAccess

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