TRANSPIRATION INTENSITY IN CHERRY PLUM FORMS AND VARIETIES INTRODUCED INTO THE CHUI VALLEY OF KYRGYZSTAN

Abstract

The results of the study of summer transpiration in 17 introduced varieties of cherry plum from the collection of the Gareev Botanical Garden of the National Academy of Sciences of the Kyrgyz Republic are presented. The results of the introduction of wild-growing cherry plum and cultivars are presented. The study of the intensity of transpiration of cherry plum introducers of various origins, as an important physiological process, is essential for assessing the degree of their suitability for production and breeding use in Kyrgyzstan. Our studies have shown that intensively transpiring varieties of cherry plum grown under irrigation can withstand hot, arid natural and climatic conditions in the Chui Valley and bring abundant harvests of high-quality fruits. Studies of the diurnal course of transpiration showed that the intensity of transpiration, in most varieties of cherry plum, is highest in the morning, or at noon, and decreases in the evening, forming a single peak curve. In some varieties, IT sharply decreases in the morning by noon and rises in the evening, with the formation of two peak curves: Crimson, Ashtarakskaya 2, Traveler, Shater, Ruddy Dawn, Premiere. A high position in the average monthly intensity of transpiration is occupied by the following varieties: Ruddy Zorka, Traveler, Ashtarakskaya 2, Rubinovaya, Lavina, Globus, Vilora, Dessertnaya, Late Comet. The average position in IT is occupied by varieties: Southern Beauty, Premiere, Sister, Shater. The lower position in IT is occupied by varieties: Raspberry, Large red. High values of the amplitude of fluctuations of IT with a labile type, varieties are distinguished: Sogdian yellow, Rudy Zorka, Rubinovaya, Avalanche, Comet late, Southern beauty, Dessertnaya, Persian.The average values of AF, with a moderately labile type of IT, varieties were distinguished: Ashtarakskaya 2, Sister, Globus, Premiere, Shater, Vilora, Traveler. Low AF values, with a stable IT type, are characteristic of the varieties Krupnaya Krasnaya and Malinovaya.