trocas gasosas de cafeeiros (coffea arabica l.) e seringueiras (hevea brasiliensis muell. arg.) em diferentes sistemas de cultivo na região de larvas, mg gas exchange in coffe (coffea arabica l.) and rubber tree (hevea brasiliensis muell. arg.) in different crop systems in lavras, mg

Clicks: 446
ID: 208092
2006
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Abstract
O uso de sistemas de cultivo agrícola que favorecem a conservação dos recursos naturais e a diversidade de produção representa uma alternativa para produtores que visam menores custos em uma produção sustentável. Dentre esses sistemas de cultivo, destaca-se o sistema de consórcio entre cafeeiros e seringueiras, que tem sido estudado na região sul de Minas Gerais. Nesse contexto, avaliaram-se características de trocas gasosas, fluorescência da clorofila e relações hídricas de cafeeiros e seringueiras, em monocultivo e consórcio, na fase de implantação dos cultivos, com o objetivo de verificar o comportamento dessas espécies em diferentes sistemas de cultivo. Os resultados apontaram que um ambiente caracterizado por níveis de radiação e temperatura menores favorece as trocas gasosas do cafeeiro, enquanto maior disponibilidade hídrica e valores elevados de radiação são favoráveis ao desenvolvimento da seringueira quando em sistemas consorciados.
Crop systems that improve conservation of natural resources and diversity of production is a promising practice for farmers seeking low costs and a sustainable agriculture. The coffee - rubber tree intercropping has been studied in the south of Minas Gerais - Brazil. Within this context, the objective of this work was to evaluate the characteristics gas exchange, chlorophyll fluorescence and water relations of coffee and rubber tree in both intercropping and monocroping systems, in the early stage of the plantation establishment. The results showed that the reduction in radiation levels and temperature promote gas exchange increase in coffee, while higher photosynthetic radiation values and soil water availability are favorable to rubber tree in intercropping systems.
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Authors ;Cláudio Roberto Meira de Oliveira;João Paulo Rodrigues Alves Delfino Barbosa;Angela Maria Soares;Luiz Edson Mota de Oliveira;Renato Luiz Grisi Macedo
Journal journal of veterinary medical research
Year 2006
DOI
10.1590/S0100-67622006000200006
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622006000200006
Keywords
rubber tree coffee intercropping system

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