ISHS Acta Horticulturae 396: Hydroponics and Transplant Production
EFFECT OF PHOSPHORUS ON GROWTH AND CONCENTRATION OF MINERAL ELEMENTS AND ESSENTIAL OILS OF SWEET BASIL LEAVES. |
| Authors: | M. Ichimura, M. Ikushima, T. Miyazaki, M. Kimura |
| Keywords: | Sweet basil (Ocimum basilicum L.), Phosphorus, Mineral element, Essential oil, Growing season |
| DOI: | 10.17660/ActaHortic.1995.396.23 |
| Abstract:
In order to investigate the effect of phosphatic fertilizer on growth and concentration of mineral elements and essential oils, sweet basil (Ocimum basilicum L.) was grown on a volcanic ash soil until blooming in spring and summer. The phosphatic fertilizer was applied at the rates of 1, 3, 10, 30 and 90g as superphosphate per 3l pot at the planting time. All pots received 0.94g ammonium sulfate and 1.34g potassium sulfate. In both seasons, the fresh weight of top and phosphorus concentrations of leaves and soil increased with increasing amount of applied phosphorus. For getting to the maximum fresh weight of top, more phosphatic fertilizer was necessary in spring than in summer. Essential oil concentrations and contents of leaves were higher in summer than in spring.
In summer, the oil concentration was negatively correlated with fresh weight of top, but not in spring.
Total concentrations of six major components (eugenol, linalool, 1,8-cineol, acetate-d-amyl, | |
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-bergamotene+
-elemene and germacrene-d) occupied about 80% of the total essential oil.
Eugenol, linalool, 1,8-cineol, acetate-d-amyl and germacrene-d concentrations were affected by the amount of applied phosphorus and growing seasons.
On the other hand, 
