Studies and research conducted by many researchers indicate that at the stage of cell division after the contract there is no oil to be estimated. In the second phase, which is the stage of hardening of the nucleus that occurs in July and August, the proportion of oil is also few. The third stage is the stage of cell filling in which the oil increases significantly but it distinguishes in the fruits of the olive stages of maturity.
- First: the stage of green maturity and the oil in which the proportion of the most important.
- Second: the stage of full maturity and the fruits have become black color and the proportion of oil to the maximum.
The fruits are completely black, but in the later varieties, the percentage of oil is highest at the end of December and early January. Genetics plays a large role in the amount of oil given by each species and its quality.
The study conducted by Dr. Deir Ali some olive varieties in Syria, where it was found that the proportion of oil in the oil category taken from the fields of (Azaz and Afrin) was 27.6% in the fruits of green, while 40.8% in black fruits and the same category, Only 12.4% in the Abu Salal-type used for pickling and taken from the olive fields in Palmyra.
- First: the stage of green maturity and the oil in which the proportion of the most important.
- Second: the stage of full maturity and the fruits have become black color and the proportion of oil to the maximum.
The fruits are completely black, but in the later varieties, the percentage of oil is highest at the end of December and early January. Genetics plays a large role in the amount of oil given by each species and its quality.
The study conducted by Dr. Deir Ali some olive varieties in Syria, where it was found that the proportion of oil in the oil category taken from the fields of (Azaz and Afrin) was 27.6% in the fruits of green, while 40.8% in black fruits and the same category, Only 12.4% in the Abu Salal-type used for pickling and taken from the olive fields in Palmyra.