The growth, photosynthetic pigments and essential oil composition of monocropped and intercropped lemon balm with yarrow
| Autor: | Fernanda Ventorim Pacheco, Diogo Mendes da Silva Lordêllo, José Eduardo Brasil Pereira Pinto, Heitor Luiz Heiderich Roza, Suzan Kelly Vilela Bertolucci, Thaís Cristina Silva |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
gas chromatography
Vegetative reproduction Photosynthetic pigment Biology Photosynthesis law.invention Melissa officinalis L chemistry.chemical_compound 0404 agricultural biotechnology law Dry matter lcsh:Agriculture (General) consórcio Essential oil Cultivo de Plantas Medicinais cromatografia gasosa Intercropping 04 agricultural and veterinary sciences biology.organism_classification lcsh:S1-972 040401 food science Horticulture chemistry Achillea millefolium L Shoot Composition (visual arts) Agronomy and Crop Science intercropping |
| Zdroj: | Acta Scientiarum. Agronomy; Vol 40 (2018): Publicação Contínua; e35506 Acta Scientiarum. Agronomy; v. 40 (2018): Publicação Contínua; e35506 Acta Scientiarum. Agronomy Universidade Estadual de Maringá (UEM) instacron:UEM Acta Scientiarum. Agronomy, Volume: 40, Article number: e35506, Published: 03 SEP 2018 Acta Scientiarum: Agronomy, Vol 40, Iss 1, Pp e35506-e35506 (2018) |
| ISSN: | 1807-8621 1679-9275 |
| Popis: | The purpose of this study was to assess the influence of lemon balm intercropping with yarrow on the vegetative growth, photosynthetic pigments and essential oil contents as well as the chemical composition of essential oils. Accordingly, the lemon balm and yarrow monocroppings were compared to the intercropping of both species. The plants were cultivated for 120 days under field conditions. The experimental design followed randomized blocks with seven repetitions. Growth was assessed through the accumulation of shoot dry matter and through the leaf area. The photosynthetic pigment content was set based on the fully expanded leaves from five plants in each treatment. The essential oil was extracted through the hydrodistillation of the lemon balm leaves and yarrow leaflets dehydrated in a forced ventilation oven at 40°C. The chemical analyses of the essential oils were performed using GC-FID and GC-MS. Intercropping showed a reduction of vegetative growth. However, intercropping increased the lemon balm essential oil content. On the other hand, these parameters did not change in yarrow. There were variations in the level of chemical constituents in lemon balm and yarrow essential oils, which were more evident in the major constituents. RESUMO. Objetivou-se avaliar a influência do cultivo consorciado de melissa com mil folhas, no crescimento vegetativo, teores de pigmentos fotossintéticos e de óleos essenciais e composição química de óleos essenciais. Para isso, foram comparados os cultivos solteiros de melissa e de mil-folhas com o cultivo consorciado de ambas. As plantas foram cultivadas por 120 dias em condições de campo. O delineamento experimental foi em blocos casualizados com sete repetições. O crescimento foi avaliado através do acúmulo de matéria seca da parte aérea e pela área foliar. Os teores de pigmentos fotossintéticos foram determinados a partir de folhas completamente expandidas de cinco plantas de cada tratamento. O óleo essencial foi extraído por hidrodestilação das folhas de melissa e de folíolos de mil folhas desidratados em estufa com ventilação forçada a 40°C. As análises químicas dos óleos essenciais foram realizadas por CG-DIC e CG-EM. O cultivo consorciado indicou redução no crescimento vegetativo, mas aumentou o teor de óleo essencial da melissa. Por outro lado, esses parâmetros não foram alterados para a mil-folhas. Houve variações nos teores dos constituintes químicos de ambos os óleos essenciais, que foram mais evidentes nos constituintes majoritários. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|