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| Alves,Aglair C; Jesus,Fábio N; Alves,Péricles B; Santos,Hamilton V; Souza,Girlene S; Santos,Anacleto R. |
| ABSTRACT The aim of this study was to evaluate the effect of light quality and nitrogen availability on the biomass production, yield and composition of essential oil of lemon balm (Lippia alba). Five doses of N (0; 40; 80; 120 and 160 kg ha-1) were studied, using urea and three light quality conditions obtained with the use of colored shading nets (blue and red), 50% irradiance and under full sun. The experiment was arranged in a 5x3 factorial scheme, in split plots, with seven replicates. After 60 days of cultivation under the shading nets, a higher dry leaf biomass (4.83 g per plant) was observed in the plants under blue net cultivation at a dose of 102 kg ha-1 of N. The plants grown under full sun presented greater amount of neral and geranial, major... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lippia alba; Shading nets; Nitrogen fertilization; Medicinal plant; Light quality. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000100094 |
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| RIBEIRO,AURISLAINE S.; RIBEIRO,MARIANA S.; BERTOLUCCI,SUZAN K.V.; BITTENCOURT,WANDERLEY J.M.; CARVALHO,ALEXANDRE A. DE; TOSTES,WESLEY N.; ALVES,EDUARDO; PINTO,JOSÉ E.B.P.. |
| ABSTRACT The purpose of this investigation was to determine the influence of colored shade nets on the growth, anatomy and essential oil content, yield and chemical composition of Pogostemon cablin. The plants were cultivated under full sunlight, black, blue and red nets. The harvesting was performed 5 months after planting and it was followed by the analysis of plant growth parameters, leaf anatomy, essential oil content, yield and chemical composition. The plants grown under red net have produced more leaf, shoot, total dry weight and leaf area. Plants cultivated under colored nets showed differences in morphological features. Plants maintained under red net had a higher leaf blade thickness and polar and equatorial diameter of the stomata ratio.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Light quality; Patchouli; Patchoulol; Radiation intensity. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401823 |
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| LIMA,VANDIMILLI A.; PACHECO,FERNANDA V.; AVELAR,RAFAELLA P.; ALVARENGA,IVAN C.A.; PINTO,JOSÉ EDUARDO B.P.; ALVARENGA,AMAURI A. DE. |
| ABSTRACT Piper hispidinervum C. DC. is popularly known as long-pepper and it owns a commercial value due to the essential oil it produces. Long-pepper oil is rich in safrole and eugenoln components that have insecticidal, fungicidal and bactericidal activity. It has been establish that to medicinal plants light influences not only growth but also essential oil production. The growth, the content of photosynthetic pigments and the essential oil production of Piper hispidinervum at greenhouses with different light conditions was evaluated. The treatments were characterized by cultivation of plants for 180 days under different light conditions, produced by shading greenhouses with 50% and 30% of natural incident irradiance, two colored shading nets red (RN)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colored nets; Light quality; Medicinal plants; Safrole. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301167 |
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