2025, Vol. 13, Issue 5, Part A

author(s)
Abeer FF Mohamed and Tamer FA El-Moghazy

abstract
The present research was conducted during 2023/2024 seasons at the Sabahia Horticulture Research Station, Alexandria Governorate, Egypt, to study the effect of foliar spraying with Ascobein and the number of sprays on vegetative growth; plant height (cm), number of main branches, fresh and dry weights of plant (g/plant) and chlorophyll content. In addition to oil percentage (%) and chemical composition of essential oil (EO), also fresh herb yield (t/fed) and oil yield (L/fed) of Sweet basil (Ocimum basilicum L.). The treatments were; control 0, 50,100 and 150 ppm of Ascobein in two sprays (spray2) or three sprays (spray3)/cut in both seasons. Results revealed that all Ascobein treatments achieved the higher vegetative growth as well as major compounds content of EO compared to control. Moreover, Ascobein treatments 50,100 ppm achieved average values, while 150 ppm treatment recorded higher values for the vegetative growth, oil%, chemical composition of EO and herb yield or oil during this study than other treatments. On the other hand, it was observed that foliar spraying with Ascobein (spray3) was better than (spray2)/cut in both seasons. From the above, we recommend spraying with Ascobein at a concentration of 150 ppm (spray3)/cut to obtain high quality and productivity of Sweet basil.