THE ROLE OF THE GENOTYPIC FACTOR IN THE VARIABILITY OF NUMERICAL CHARACTERISTICS OF VARIETAL SPECIMENS OF VICIA FABA L. WHEN INTRODUCED IN THE CONDITIONS OF INLAND DAGESTAN

As a result of the introduction test in the conditions of Inner Mountain Dagestan, a comparative analysis was carried out and the influence of varietal diversity on the structure of variability of numerical features of five varieties of Vicia faba L., obtained from the collection of the Vavilov VIR (St. Petersburg), was evaluated. The work is done at the population level. As a result of the summary statistics, average statistical characteristics are obtained. Mathematical processing of the material using the methods of correlation and dispersion analysis was carried out. Mathematical processing of the material using the methods of correlation and dispersion analysis was carried out. The most stable and plastic numerical signs of the vegetative and generative spheres are noted. Within the variety and the combined sample, the minimum coefficient of variation is noted for the average number of seeds per fruit and the number of productive nodes per plant, and the maximum for the number of side branches and the total number of seeds per plant. Between the averages and the relative variability of the total number of internodes, a significant (rxy = 0.864 *) correlation value was noted. Empirical indicators (asymmetry and excess) of the total number of internodes according to Student's t-criterion significantly (12.772 *** and 36.629 ***) deviate from the normal theoretical distribution curve. A high (rxy = - 0.842) value between the same indicators of negative correlation is established for the number of side branches per plant. Between the number of fruits and the number of seeds on the plant of all varieties and the combined sample, significant correlation values were established at the highest level (99.9%) of reliability. For these two features, similar and significant differences were also established (5.579***, 5.823***, 5.140*** and 5.804***) according to the same criterion from the theoretical normal distribution curve for both empirical indicators. Significant connections were also found between the indicators of these two features of the generative sphere and the node of the location of the first fetus. Varietal diversity significantly affects the variability of three features: the number and proportions of fruiting nodes and the number of lateral branches