Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/46099
Title: Produção, longevidade e teores nutricionais do girassol ornamental submetido a água magnetizada em diferentes regimes hídricos
Other Titles: Production, longevity and nutritional content of ornamental sunflower submited to magnetized water in different water regimes
Authors: Deus, Fábio Ponciano de
Diotto, Adriano Valentim
Paiva, Patrícia Duarte de Oliveira
Carvalho, Luiz Gonsaga de
Schwerz, Felipe
Mesquita, Marcio
Pereira, Joelma Rezende Durão
Keywords: Helianthus annuus L.
Tratamento magnético
Regimes hídricos
Durabilidade floral
Teor nutricional
Agricultura irrigada
Magnetic treatment
Water regimes
Floral durability
Nutritional content
Irrigated agriculture
Issue Date: 9-Feb-2021
Publisher: Universidade Federal de Lavras
Citation: PIZETTA, S. C. Produção, longevidade e teores nutricionais do girassol ornamental submetido a água magnetizada em diferentes regimes hídricos. 2020. 71 p. Tese (Doutorado em Recursos Hídricos) – Universidade Federal de Lavras, Lavras, 2021.
Abstract: In the face of scenarios of climate change and changes in rainfall patterns and water availability, it is essential to improve efficiency in the use of water. Several studies are being carried out in this regard, including subjecting agricultural crops to the use of water subjected to magnetic treatment. The objective of this study was: i) to evaluate the growth, biomass and longevity of flower stems and ii) to evaluate the contents of macro and micronutrients in the leaves of the ornamental sunflower Vincents Choice (Helianthus annuus L.) irrigated with different irrigation depths submitted to magnetic treatment. The research was carried out in a greenhouse of the Department of Water Resources and Sanitation at UFLA-MG, in a randomized block design in a factorial scheme. The treatments consisted of five irrigation depths (0.2; 0.7; 1.0; 1.3; and 1.6 of ETc - crop evapotranspiration) and two types of irrigation water (AM - magnetized water and AC - common water). The following characteristics were evaluated: plant height, stem diameter, inflorescence diameter, fresh and dry leaf and stem mass, fresh and dry inflorescence mass, postharvest longevity of flower stems and of micro and macronutrients in the leaf. Vegetative growth characteristics, biomass production, and post-harvest longevity as the contentes of N, P, K, Ca, Mg, Zn, B and Fe were not influenced by the type of water. However, water without magnetic treatment favored higher leaf concentrations of S, Cu and Mn. The increase in irrigation depth promoted growth, biomass, post-harvest longevity, higher leaf concentrations of N, P, Ca and Zn, and lower K, Cu and Fe. The leaf contents of Mg, S, B and Mn were not significantly influenced by the different water replenishments. Regarding the patterns of commercialization of cut flowers, blades equal to or greater than 0.7 of the ETc promoted the best classification of the ornamental sunflower.
URI: http://repositorio.ufla.br/jspui/handle/1/46099
Appears in Collections:Recursos Hídricos - Doutorado (Teses)



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