morphogenetic index of productivity

The structure of productivity elements of durum wheat varieties of Saratov selection

Authors: Hachaturov E. G., Korobko V. V.

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.

Biological Characteristics of Productivity of Various Breeding and Genetic Forms Winter Rye

Authors: Kargatova A. M., Ermolaeva Т. Y., Stepanov S. A., Nuzhdina N. N.

The paper presents the results of a study of the biological characteristics of productivity of various breeding and genetic forms of winter rye, presented by grades and district of the Saratov breeding. Significant varietal differences in development of individual morphological parameters of the shoot. The number of leaves of the main shoot per plant in winter rye agropopulations different varieties ranges from 6 to 9 units, stem length from 1249 to 1660 mm, length of ear, from 75 to 139 mm, number of spikelets of spike – from of 27.7 to 40.2; the number of grains ear – to 64.8 36.0 units.