ESSENTIAL OIL AND HERB YIELD OF BASIL (OCIMUM BASILICUM L.) UNDER SELECTED PLANTINGS AND NITROGEN TREATMENTS

This study investigated the influence of planting row width and nitrogen treatments on essential oil and fresh and dry herb yield of basil (Ocimum basilicum L.). The basil was grown every 20 cm at three plant row widths (30, 40, and 50 cm) and at four nitrogen levels (0, 5, 10, 15 kg 1000 m^-2) in experimental plots at the Agricultural Facility, University of Ankara, Turkey, in 2008. Planting was in a split plot, using randomized, complete block design with four replicates using seedlings started in a greenhouse and transplanted to the field after 50 days (seedling 15 cm in height). The basil plants were harvested on July 23, August 26, and October 6). Significant differences in fresh herb yields were noted between the first and second cuttings under the tested planting row width (P<0.05) and in second and third cuttings of the nitrogen treatments (P<0.01). Average of fresh herb yield for the three cuttings was 0.786, 1.278, and 0.762 kg m^-2, respectively, and total fresh herb yield was 2.826 kg m^-2 in 2008. Nitrogen treatments affected the second and third cutting (P<0.01). Maximum fresh herb yield obtained in second cutting.
Total dry herb yield was 0.509 kg m^-2 and different row widths and nitrogen treatments influenced all three harvests.
Essential oil yield, determined on the above ground parts, indicated maximum and minimum amounts of essential oil were observed in the second and third harvests.
The yield of essential oil in the three harvests was 0.91, 1.16 and 0.3 ml m^-2, respectively.
Different planting row widths and nitrogen doses affected essential oil yield (P<0.01).

International Symposium on Medicinal and Aromatic Plants IMAPS2010 and History of Mayan Ethnopharmacology IMAPS2011

A.M. Daneshian, S. Ghaemmaghami

dry weight, fresh weight, Iran, plantings, row width

https://doi.org/10.17660/ActaHortic.2012.964.14