Variability of elements of efficiency of grades of the soft spring-sown field in Western Siberia

The soft spring-sown field as the main food crop of the region is characterized by the increased insistence to the most important factors of environment which differ in this region in an exclusive variety, severity and variability. Results of three summer researches of elements of efficiency of various grades of a soft spring-sown field are presented in article. During researches climatic characteristics had impact on formation of elements of efficiency and productivity of grades of a soft spring-sown field. The two-factorial dispersive analysis of change of quantitative signs of efficiency and dependence of productivity on signs is carried out. The following parameters were considered: productivity of grain, a productive bushiness, number of grains in an ear, weight is 1000 grains, the mass of grain of an ear. Every year researches the average value of hydrothermal coefficient 0.75 was characterized by insufficient moisture security, as influenced formation of elements of efficiency of plants and productivity of grain. This influence proves the dispersive analysis for which two factors - years of researches and a grade of researches were taken and also interaction of these factors and their influence on each component of efficiency was considered. As a result of application dispersive by the analysis it is revealed that formation of mass of grain of an ear and number of grains in an ear more are influenced by weather conditions (a share of influence of a factor of 80.9 and 77.9%). The productive bushiness is influenced by interaction of two factors - conditions of year and a grade - 56.3%. The mass of 1000 grains almost equally is influenced by grades (an influence share - 42.5%) and interaction of conditions of year and genotypes (39.4%). By means of the correlation analysis average positive communication between number of grains in an ear and the mass of grain from an ear with productivity, weak positive communication of a productive bushiness from productivity is revealed. On the mass of 1000 seeds communication with productivity wasn't proved (r = -0.07). The grade of OMGAU 90 is allocated on all schedules and in three years of researches is characterized by the maximum value of all indicators.