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	Provedor de dados Chilean J. Agric. Res. (1) Rev. Ciênc. Agron. (1) Autor Alav,Seyed V (1) Alves,Luiziene Soares (1) Fernandes,Manlio Silvestre (1) Ghanbari-Malidarreh,Abbas (1) Nanagulyan,Siranoush G (1) Rayatpanah,Siavosh (1) Razavi,Mohammad (1) Santos,André Marques dos (1) Souza,Sonia Regina de (1) Torres Junior,Carlos Vergara (1) Mais... Palavra-chave Oilseed plants (2) Charcoal rot (1) Disease index (1) Helianthus annuus L. (1) Nitrogen (1) Total N (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Journal article (1) Ano 2016 (1) 2012 (1) País Brazil (1) Chile (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Pathogenic and Genetic Diversity among Iranian Isolates of Macrophomina phaseolina Chilean J. Agric. Res. Rayatpanah,Siavosh; Nanagulyan,Siranoush G; Alav,Seyed V; Razavi,Mohammad; Ghanbari-Malidarreh,Abbas. Charcoal rot, caused by Macrophomina phaseolina (Tassi) Goid., is an economically important disease of oilseed plants in Northern Iran. Seventy isolates of M. phaseolina were obtained from different hosts, including soybean (Glycine max L.), and sunflower (Helianthus annuus L.) in the northern oilseed planting regions of Iran. RAPD-PCR amplification profiles, by using of six random OPA primers (kit A) showed polymorphisms among the isolates. The primer OPA-13 (5'_ CAGCACCCAC_3') amplified the genomic DNA of all isolates of M.phaseolina producing 4-12 bands of sizes between 0.25 and 2.3 kb. Unweighted pair-group method with arithmetic mean (UPGMA) analysis classified the isolates into the nine major groups with 64% similarity. Pathogenicity of isolates was... Tipo: Journal article Palavras-chave: Charcoal rot; Oilseed plants; Disease index. Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100007 Soluble fractions and kinetics parameters of nitrate and ammonium uptake in sunflower (“Neon” Hybrid) Rev. Ciênc. Agron. Alves,Luiziene Soares; Torres Junior,Carlos Vergara; Fernandes,Manlio Silvestre; Santos,André Marques dos; Souza,Sonia Regina de. ABSTRACT Sunflower plants are source of oilseeds with great importance for agroenergy. Nitrogen deficiency is considered one of the factors limiting growth and yield. The objective of this study was to assess the nitrogen uptake (high and low supply of nitrate and ammonium) and to determine the uptake kinetics parameters (Km and Vmax) of these ions in sunflower plants (Neon hybrid). The experiment was carried out in a growth chamber using a hydroponic system. The following treatments were applied: 0.2 and 2.0 mmol L-1 of N-NO3- and N-NH4+. The two kinetics parameters (Km and Vmax) involved in the uptake of nitrate and ammonium were determined, as well as the soluble fractions (N-NO3-, N-NH4+, amino-N and sugars) and total N, in different plant tissues. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Helianthus annuus L.; Oilseed plants; Total N; Nitrogen. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000100013 Registros recuperados: 2 Primeira ... 1 ... Última

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