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	Provedor de dados Planta Daninha (1) Rev. Bras. Ciênc. Solo (1) Autor AHMAD,R. (1) BASRA,S.M.A. (1) JABBAR,A. (1) Leite,Vagner Maximino (1) Rosolem,Ciro Antonio (1) ZOHAIB,A. (1) Mais... Palavra-chave Boron deficiency (2) Ca/B ratio (1) Coffee nutrition (1) Cotton seed nutritional quality (1) Mepiquat chloride (1) Nutrient Dynamics (1) Seed cotton yield (1) Stomata (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2007 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Comparative Productivity and Seed Nutrition of Cotton by Plant Growth Regulation under Deficient and Adequate Boron Conditions Planta Daninha ZOHAIB,A.; JABBAR,A.; AHMAD,R.; BASRA,S.M.A.. ABSTRACT: Plant growth regulators (PGRs) potentially improve the productivity and nutritional quality of crops through modulation of morphology, physiology and nutrient dynamics within plants. However, the effect of PGRs may differ under environments with deficient and adequate nutrients. Here the role of mepiquat chloride (MC) on the yield and seed nutritional quality of cotton was explored under boron (B) deficiency and adequate conditions in a two-year field study. Mepiquat chloride was foliar-applied at different dosages (0 and 70 mg L-1) and growth stages (squaring and flowering) and B was applied into soil (0, 1, 1.5, 2 and 2.5 kg ha-1) to establish B deficiency and adequate levels. Seed cotton yield and seed nutritional quality were substantially... Tipo: Info:eu-repo/semantics/article Palavras-chave: Boron deficiency; Mepiquat chloride; Seed cotton yield; Cotton seed nutritional quality; Nutrient Dynamics. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100240 Coffee leaf and stem anatomy under boron deficiency Rev. Bras. Ciênc. Solo Rosolem,Ciro Antonio; Leite,Vagner Maximino. Boron deficiency in coffee is widely spread in Brazilian plantations, but responses to B fertilizer have been erratic, depending on the year, form and time of application and B source. A better understanding of the effects of B on plant physiology and anatomy is important to establish a rational fertilization program since B translocation within the plant may be affected by plant anatomy. In this experiment, coffee plantlets of two varieties were grown in nutrient solutions with B levels of 0.0 (deficient), 5.0 µM (adequate) and 25.0 µM (high). At the first symptoms of deficiency, leaves were evaluated, the cell walls separated and assessed for B and Ca concentrations. Scanning electron micrographs were taken of cuts of young leaves and branch tips. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Boron deficiency; Ca/B ratio; Coffee nutrition; Stomata. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832007000300007 Registros recuperados: 2 Primeira ... 1 ... Última

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