Triticum durum Desf.

The objects of the study were plants of 14 varieties of durum wheat Triticum durum Desf. A structural analysis of the productivity elements of plants cultivated in the fi eld in 2020, 2021 and 2023 was carried out. The varietal features of the formation of productivity elements of durum wheat varieties of Saratov breeding in diff erent meteorological conditions are revealed. Based on the peculiarities of the formation of the main elements of ear productivity, varieties with a balanced type of morphogenetic systems have been identifi ed.

The objects of the study were plants of 14 varieties of durum wheat Triticum durum Desf. Cultivation was carried out in a climatic chamber at a temperature of 18 ± 1°C under the conditions of a sixteen-hour photoperiod. To study the growth characteristics of the root system of seedlings, the length of the main root and the length of the adventitious roots of the upper and lower tiers were measured; thus, the growth rate of the root system was determined.

The objects of the study were plants of 14 varieties of durum wheat Triticum durum Desf., permitted for use at different times in the period from 1975 to 2014. An analysis of the elements of ear productivity in durum wheat plants of Saratov varieties under the conditions of 2020 was carried out. The varietal features of the development of the spike of the main shoot were revealed according to a number of characteristics: the number of spikelets in a spike, the number of grains in an ear, the weight of a grain, the number of ungrained and grained spikelets.