Home – Home – Jornals – Flora and Vegetation of Asian Russia 2019 number 2

Not differences were detected in hermaphroditic and female individuals D. nutans L. in characteristics of seed productivity: the number of seeds per generative shoot is 144.8 ± 9.11 PCs. and 141.0 ± 12.63 PCs.; coeffi cient of seed productivity of 41.1 and 40.9 %; weight of 1000 seeds - 0.31 ± 0.006 g and 0.32 ± 0.005 g, respectively, for hermaphrodites and females. In the offspring of hermaphrodites in this population dominated by hermaphrodite individuals - 82.4 %, female - 8.4 %, transitive individuals - 9.2 %. In the offspring of females dominated by female individuals - 66.3 % , hermaphrodites - 17.5 %, transitive individuals - 16.2 %. The high reliability of the difference between hermaphrodites and females by sex distribution in the first generation offspring was established (Chi-square criterion 93.14, p < 0.001) . The ratio of individuals in the sexual structure of the initial population is 69.8 % hermaphrodite and 30.2 % female phenotypes. The phenotype frequency analysis of the fi rst generation offspring from hermaphrodite and female individuals at all possible crossings showed that the frequency of the female phenotype is 0.259.