hidrogel como substituto da irrigação complementar em viveiro telado de mudas de cafeeiro hydrogel as a substitute for irrigation in screened seed nursery coffee

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ID: 206841
2013
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Abstract
O cafeeiro, em sua fase inicial de mudas, requer um adequado suprimento de água, pois o estresse hídrico pode causar reduções no crescimento e subsequentemente na produção em campo. A hipótese deste trabalho foi que o uso do hidrogel como substituto da irrigação de mudas de café cv. 'Iapar 59' proporciona mudas de qualidade igual ou superior àquelas irrigadas. O experimento foi conduzido em viveiro telado (50% sombrite) em Presidente Prudente - SP - de fevereiro a outubro de 2008. Utilizou-se o delineamento inteiramente casualizado, com cinco tratamentos (sem polímero e irrigado diariamente; 0,0; 1,0; 2,0 e 3,0g por saco de polietileno sem irrigação) e 20 repetições. Realizaram-se seis avaliações periódicas: número de folhas (NF), matéria seca da parte aérea (MSPA) e raízes (MSR); comprimento da parte aérea (CPA) e raízes (CR) e MSPA/MSR. Para as condições do ensaio, o uso do hidrogel na dose de 2g por saco de polietileno proporcionou mudas de mesma qualidade que aquelas irrigadas. A relação MSPA/MSR foi superior para o tratamento irrigado.
The coffee seedlings require an adequate water supply because the water stress can cause reductions in growth and subsequently in the production field. The hypothesis of this research was that the hydrogel used as a substitute for the irrigation of seedlings of 'Iapar 59' coffee provides quality equal or higher seedling irrigated. The experiment was conducted in a screened seed nursery (50 shading) in Presidente Prudente city, São Paulo State, Brazil, since February to October 2008. The statistical design was completely randomized, with 5 treatments (without polymer and without irrigation; 0.0; 1.0; 2.0 and 3.0g of hydrogel per polythene bag without irrigation) and 20 repetitions. We conducted six periodic evaluations: number of leaves (NF), dry matter of aerial part (MSPA) and roots (MSR); length of aerial part (CPA) and roots (CR) and the MSPA/MSR. Under test conditions, the use of hydrogel in the dose of 2g per polyethylene bag results in seedlings of same quality of seedlings irrigated. The MSPA/MSR relation was higher for the irrigated treatment.
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marques2013cinciahidrogel Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Patricia Angélica Alves Marques;Marcos Antônio de Melo Cripa;Eduardo Henrique Martinez
Journal Trials
Year 2013
DOI
DOI not found
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000100001
Keywords
soil water retention seedling production

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