A group of Iranian researchers managed to identify gender of pistachio in early stages of the plants growth.In certain plants, males and females are separated. For example palms could be male and female and it is found out when it booms. The plants are known as two-based. It means that one of the bases is male and the other one is female. Fruit is produced when pollen reaches the male one from the female one. Identification of gender of the plants is of considerable importance in genetics and breeding. Obviously, developing methods for identifying plants gender is important. The new method developed by biotechnology finds out gender of pistachios in early stages of the growth.Results of the study published in Scientific Agriculture Journal of Shahid Chamran University show that the method can dramatically help identification of pistachio gender. It has been proved as economical both in time and expenses.