PHENOLOGICAL CHARACTERISTICS OF SOME VARIETIES AND FORMS OF PISTACHIO (PISTACHIA L.) PLANT

Abstract

The article studies the phenological characteristics of some varieties of Pistachio (Pistachia L.) plant introduced to the Absheron Experimental Base of the Scientific Research Institute of Fruit Growing and Tea Growing. During the research, the following varieties and forms were selected: Bina 1/91, Bina 2/92, Narinj, Khanim 17/85, Parvin 14/84, Aylin, Buzovna 65/84, Mardakan 19/95, Bulbula. As a result, well-flowering varieties and forms, phenological groups, and vegetation peri- od were determined. The studied varieties and forms underwent normal vegetation in the soil-cli- matic conditions of Absheron, the duration of vegetation varied between 224-226 days depending on the varieties and forms. Based on phenological groups, the varieties and forms Bina 1/91, Na- rinj, khanum, Parvin, Buzovna 65/84 were attributed to the ML group, Bina 2/92, Aylin, Mardakan 19/95, bulbula to the LL group. The flowering rate was evaluated as 3 points in Bina 1/91, Bina 2/92 varieties, and 4 points in Kalam varieties.