Phenological and Pomological Characteristics of Five Pistachio Cultivars in Mahneshan, Zanjan

The present study was carried out to evaluate phonological and pomological characteristics of five pistachio cultivars (Ouhadi, Badani, Momtaz, Ahmmad Aghaie and Kallehghoochi) in a randomized complete block design with five replications at research station of Mahneshan during 2012-2013. The results showed that the overlapping period of polinizer cultivar with Ouhadi, Badami, Momtaz, Ahmad Aghaie and Kallehghoochi cultivars was 7, 8, 7, 3 and 9 days, respectively. There were significant differences among the cultivars for fruit set, Kallehghoochi cultivar had the highest and Momtaz cultivar had the lowest percentage of fruit set. Cultivars also differed for nut characteristics such as fresh and dry weight of nut, and nut length and width. Kallehghoochi had the highest and Ouhadi and Momtaz cultivars had the lowest values of these characteristics. Momtaz cultivar had the highest and Ahmad Aghaie cultivar had the lowest percentage of blankness of nut. Kallehghoochi cultivar had the highest and Ahmad Aghaie had the lowest percentage of non- split nut. The highes ounce weight of nut was recorded for Badami, Momtaz and Ouhadi cultivars, while Kallehghoochi cultivar had the lowest ounce.