PECULIARITIES OF GRAIN PRODUCTIVITY FORMATION AND ITS ELEMENTS IN VARIETIES OF SPRING BARLEY COLLECTION OF VIR IN CONDITIONS OF ARID CLIMATE OF ASTRAKHAN REGION
On the territory of the Astrakhan region, the experience of studying varieties of spring barley of the VIR world collection, of various ecological and geographical origin, was laid in nonirrigation agriculture. According to the results of the studies, highly productive varieties of this crop were isolated. Selected varieties will be recommended for use in the selection process when creating new productive and locally adaptive varieties.