אסיף מאגר המחקר החקלאי

Effects of nitrogen, phosphorus and irrigation frequency on essential oil content and composition of sage (Salvia officinalis L.)

Year:

2015

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Volume :

2

Co-Authors:

Rioba, N.B., Department of Horticulture, School of Agriculture and Biotechnology, University of Kabianga, Kericho, Kenya
Itulya, F.M., Department of Crops, Horticulture and Soils. Faculty of Agriculture, Egerton University, Nakuru, Kenya
Saidi, M., Department of Crops, Horticulture and Soils. Faculty of Agriculture, Egerton University, Nakuru, Kenya
Dudai, N., Aromatic, Medicinal and Spice Crops unit, ARO, Newe Ya'ar Research Center, Ramat Yishay, Israel
Bernstein, N., Institute of Soil Water and Environmental Sci., Volcani Centre, Bet Dagan, Israel

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Abstract:

Essential oil produced by aromatic plants is affected by many environmental factors including nitrogen (N), phosphorus (P), and watering frequency. Salvia officinalis (sage) is an aromatic plant widely used in the food, medicine and cosmetic industries. We studied effects of N, P, and irrigation frequency on essential oil content and composition of sage. In a field experiment in a plastic tunnel N and P were each supplied at four rates (0, 40, 80, 120kgNha-1; 0, 30, 60, 90kgPha-1) and the plants were watered every 1, 2, or 4 weeks. The treatments did not affect essential oil content. Fifty-four compounds were identified in the essential oil. N and watering frequency affected the production of β-pinene, and interactive effects were noted for NxP on α-and β-thujones, and for Nx irrigation frequency on α-thujone. Negative correlation was identified between 1,8-cineole and viridiflorol. The percentage of camphor was higher than the recommended threshold by ISO standard for trade of sage essential oil. © 2015 Elsevier GmbH.

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