Agronomy, Research Updates|

Rosmarinus officinalis L. (rosemary), is a medicinal and aromatic species used in the cosmetics and food processing industries. The present study aimed to evaluate the biomass production, content, yield and chemical composition of the essential oil of rosemary in cultivation out of soil with different concentrations of nutrient solution in both harvests. The cultivation of rosemary was conducted in a protected system off the ground, with concentrations of nutrient solutions of 1, 2, 3, 4 and 5 dS.m−1 for fertigation with collections of leaves 100 and 160 days after planting. Nutrient solution concentration influences phytomass production and the content and yield of essential oil of rosemary, though not its chemical composition. The collection time does not interfere in the content of essential oil; however, does interfere in the chemical composition; the production of phytomass and the yield of oil per plant are higher in collections at 160 days after planting.

Reference: Frescura, V. D.-S., A. A. Boligon, F. M. Barbosa, J. M. De Souza, M. A. Lerner, H. D. Laughinghouse IV, C. D. B. Da Silva, J. L. Andriolo, S. J. Lopes and S. B. Tedesco (2018). “Nutrient solution concentration and collection time in phytomass production, content, yield and chemical composition of essential oil of rosemary.” Journal of Plant Nutrition 41(10): 1293-1302.

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