СВЯЗЬ ЭЛЕМЕНТОВ СТРУКТУРЫ КОЛОСА С ПРОДУКТИВНОСТЬЮ РАСТЕНИЙ ОБРАЗЦОВ × TRITITRIGIA CZICZINII TZVEL

Abstract

Changing climatic conditions have led to increased focus on sustainable farming methods, which include the development of adaptive varieties. Interspecific and intergenerational hybridization makes it possible to significantly strengthen the resistance of new varieties to abiotic and biotic stress. Trititrigia (×Trititrigia cziczinii Tzvel., 1973) is a new grain crop with features and economically useful properties derived from wild cereals. The purpose of the research is to evaluate the contribution of ear productivity elements of modern trititrigia samples to its productivity. Studies conducted in the conditions of sod-podzolic heavy loamy soils of Moscow region (2008–2016) confirm the specific features of the formation of productivity of trititrigia samples that distinguish it from wheat. The studied samples had an ear length of 7.9 cm to 18.3 cm, the maximum number of samples (42.2%) had an ear length of 12.0 to 13.9 cm. The highest number of samples (21.1%) had 20.1 to 20.9 spikelets per ear, 32.4% of samples formed 60.6–69.5 grains per ear, 29 samples or 41.4% formed on average 1.5–2.0 g of grains per ear. Studies have shown that the elements of the structure of the ear of trititrigia: the length of the ear, the number of grains per ear, the number and weight of grains per do not have a direct positive relationship with productivity. This may be due to the contribution of productive bushiness and biological features of trititrigia in the form of a tendency to generative shoot formation throughout the growing season.