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Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, Brazil Ciência Rural
Jarek,Tiago Miguel; Souza,Jorge Luiz Moretti de; Favaretto,Nerilde; Ruaro,Lucimeris.
ABSTRACT: Land use outside its agricultural potential and low vegetation cover in the watershed impair the quality of water used for irrigation and may contribute to the spread of pathogenic coliform bacteria. The objective of this study was to relate the quality of irrigation water with the intensity and type of land use and the rainfall in a vegetable-producing region of São José dos Pinhais, Paraná. Water samples were collected monthly in 2013 from two reservoirs and one preserved source. After collection, the samples were chilled in Styrofoam boxes and transported to the laboratory for analyses of the total and thermotolerant coliforms. Effect of land use was analyzed by probability estimation trees. High land use and weekly above average rainfall...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coliform; Watershed; Land use.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400626
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Inoculation methods and aggressiveness of five Fusarium species against peach palm Ciência Rural
Jarek,Tiago Miguel; Santos,Álvaro Figueredo dos; Tessmann,Dauri José; Vieira,Elisa Serra Negra.
ABSTRACT: Fusarium wilt is a major disease which affects peach palm (Bactris gasipaes Kunth.var gasipaes Henderson). This study aimed to evaluate inoculation methods and aggressiveness of isolates of five Fusarium species on peach palm. Fusarium proliferatum can infect the leaves, stem, and roots of peach palm. F. proliferatum, F. oxysporum species complex (FOSC), F. verticillioides, F. solani species complex (FSSC), and Gibberella fujikuroi species complex (GFSC) are pathogenic to peach palm. The use of Fusarium-colonized ground corn for root inoculation was effective and reduced the level of damage to plants.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bactris gasipaes; Heart of palm Fusarium wilt.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000400202
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