New winter rye variety Darvet developed at the Ural Research Institute of Agriculture

Abstract

The new winter rye variety of Darvet is described in comparison with the standard varieties Alisa and Parom when grown from 2017 through 2019 at the Ural Research Institute of Agriculture (Branch of the Ural Federal Agricultural Research Center of the Ural Branch of the Russian Academy of Sciences) within the framework of a state assignment. The Darvet variety was obtained by cloning plants of the Alisa variety in 2011 with further selection of plant clone offspring with high winter hardiness, tilling capacity, aligned in height, with strong straw and a large ear. In 2015, the progeny of 16 plants were selected based on productivity criteria; they were combined into one population and sown in an isolated plot to obtain original seeds. Under the conditions of the Middle Urals, the new winter rye variety Darvet produced a grain yield of 5.48 t ha which was higher than that of the standard varieties Alisa and Parom by 0.64 and 0.52 t ha. The new variety Darvet has shown advantages in winter hardiness, plant height and lodging resistance, density of productive stems and productive tilling capacity. It had larger number of grains per ear, thousand-kernel weight and ear productivity. The Darvet variety had satisfactory baking properties (falling number =180-360 s). The yield of winter rye under the conditions of the Middle Urals had high positive correlation with winter hardiness (r = 0.826) and thousand-kernel weight (r = 0.727), medium correlation with plant density (r = 0.497-0.734) and productive stem density (r = 0.328-0.403), and ear productivity (r = 0.549). The maximum yield of 7.56 t ha was obtained in the Tomsk Region in 2022.