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Formation of Elements of Efficiency of the Spike Spring Soft Wheat

Authors: Stepanov S. A., Signaevski V. D., Kasatkin M. Y., Marina V. В.

Formation of elements efficiency of an spike wheat of different cultivar is analysed. It is offered to use for an estimation of potential productivity of a cultivar morphogenetic an efficiency index.

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.

Биологические особенности развития элементов продуктивности озимой пшеницы

Authors: Stepanov S. A., Marina V. В., Ilyin N. S., Kasatkin M. Y.

Рассматриваются биологические особенности развития элементов продуктивности побега озимой пшеницы сортов саратовской селекции на основании анализа структуры растений по завершении вегетации. Показано различие сортов: 1) по распределению растений в агропопуляции по степени развития отдельных элементов продуктивности и их сбалансированности; 2) по величине морфогенетического индекса продуктивности.