Raquel Valmorbida
Federal University of Technology - Paraná
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Publication
Featured researches published by Raquel Valmorbida.
Revista Ceres | 2013
Dalva Paulus; Raquel Valmorbida; Ezequiel Toffoli; Gilmar Antônio Nava; Eloi Paulus
This study aimed to evaluate biomass production, content and components of the essential oil of Aloysia triphylla in different row spaces and harvest times. The experiment was conducted at the experimental area of Universidade Federal Tecnologica do Parana - Campus Dois Vizinhos, from March 2010 to January 2012. The experimental design was a randomized block design with three replications in a factorial scheme (3 x 11), subdivided blocks allocated in three planting rows plot (1.0 x 1.0 m, 1.0 x 0.80 m, 1x 0,60 m between rows and between plants, respectively) and on subplots, 11 harvest times (October/2010, November/2010, December/2010, January/2011, February/2011, March/2011, April/2011, May/2011, June/2011, August / 2011, September/2011). The characteristics assessed were: plant height, leaf area, fresh and dry matter, content and chemical composition of essential oil. The essential oil was extracted by hydrodistillation technique, using a Clevenger apparatus and analyzed in a gas chromatography and mass spectrometry (GC / MS). The 1 x 1 m spacing resulted in greater height (1.57 m), leaf area (4460.3 cm2), fresh weight (1.266 g per plant), dry weight (594 g per plant) and content of essential oil (0.30%). The harvest performed in February resulted in higher levels of essential oil (0.45%). The chemical constituents of the essential oil vary with spacing and harvesting time. The highest content of citral was observed in plants cultivated at 1.0 x 1.0 m spacing and harvested from September to April.
Horticultura Brasileira | 2015
Dalva Paulus; Raquel Valmorbida; Anderson Santin; Ezequiel Toffoli; Eloi Paulus
Planting density and cultivars suitable to climatic conditions of southwestern Parana State are of great importance in crop production and fruit quality of pepper. The objective of this study was to evaluate growth, production and fruit quality of pepper cultivars in different spacing and harvest seasons carried out in field in the southwestern Parana. The experiments were carried out in the experimental area of the Universidade Tecnologica Federal do Parana, Campus Dois Vizinhos, from September 2009 to July 2012. The experimental design was randomized blocks with four replications in a 2x3 factorial design, comprising two pepper varieties (BRS Mari and Paprika) and three planting densities: 1.50x1.00 m, 1.00x1.25 m, 1.50x1.25 m between rows and between plants, respectively. The number, fresh mass and production of fruits, length, fruit diameter, leaf area index, soluble solids, capsaicin and dihydrocapsaicin content in fresh fruits Were analyzed. BRS Mari resulted in greater number of fruits (199.33), production per area (5.87 t/ha), fresh fruit production (768.67 g/plant) and capsaicin (549.92 mg/kg) and dihydrocapsaicin (251.93 mg/kg) content. The spacing of 1.00x1.25 m resulted in higher yield per area (22.88 t/ha), capsaicin (362.25 mg/kg) and dihydrocapsaicin (165.02 mg/kg) content. Density can be a strategy for productivity of pepper cultivars evaluated.
Horticultura Brasileira | 2016
Dalva Paulus; Raquel Valmorbida; Sintieli Borges Ferreira; Ivan Carlos Zorzzi; Gilmar Antônio Nava
This study aimed to evaluate the effect of harvest seasons and shading nets in the growth, production, content and chemical composition of essential oil of basil. The experiment was carried out in the experimental area of the Universidade Tecnologica Federal do Parana, Campus Dois Vizinhos. Four harvest dates (90, 120, 150 and 180 days after transplanting) and three shading nets (aluminet net, red net, black net and full sun), all with 50% irradiance were evaluated. The treatments were arranged in a split-plot 4x4 factorial design with three replications in randomized blocks. Cultivation under aluminized net favored the growth in height and diameter. Basil plants grown under full sun resulted in higher fresh and dry biomass and higher content of essential oil yield in relation to shading nets. The best harvesting period was at 120 days after transplanting and resulted in higher production of essential oil (0.77 g/planta) and citral content (78.26%). The major component of the essential oil was the citral obtained in plants grown under black net (73.25%), aluminized (72.14%) and full sun (71.86%).
Horticultura Brasileira | 2013
Dalva Paulus; Raquel Valmorbida; Ezequiel Toffoli; Gilmar Antônio Nava
Horticultura Brasileira | 2016
Dalva Paulus; Raquel Valmorbida; Eloi Paulus
Horticultura Brasileira | 2016
Dalva Paulus; Raquel Valmorbida; Eloi Paulus
Horticultura Brasileira | 2015
Dalva Paulus; Raquel Valmorbida; Sintieli Borges Ferreira; Ivan Carlos Zorzzi; Gilmar Antônio Nava
Horticultura Brasileira | 2015
Dalva Paulus; Raquel Valmorbida; Anderson Santin; Ezequiel Toffoli; Eloi Paulus
Sicite 2012 | 2012
Raquel Valmorbida; Dalva Paulus; Ezequiel Toffoli
Congresso de Ciência e Tecnologia da UTFPR Câmpus Dois Vizinhos | 2012
Ezequiel Toffoli; Dalva Paulus; Raquel Valmorbida; Ivan Carlos Zorzzi