Seed productivity of Allium suworowii Regel and A. rosenbachianum Regel (Amaryllidaceae Jaume St.-Hil.) under conditions of introduction in the Moscow region

The paper analyzes the variability of the seed productivity of Allium suworowii and A. rosenbachianum - bulbous geophytes, xeromesophytes, short-vegetating spring-early summer flowering species of Central Asian flora. These species are characterized by relatively stable real seed productivity under the conditions of introduction in the Moscow region. At the same time, the real seed productivity is 1.5-1.7 times lower than the potential one (the seeding coefficient is 58.8-68.6%. The coefficient of seedification is one of the indicators of successful introduction. A low degree of variation in A. suworowii was shown by fruit set (8.2%), the number of seeds per inflorescence (8.7%) and potential seed productivity (8.1%); A. rosenbachianum has a potential seed productivity (9.1%). An increased degree of variation was noted in both tested species on the basis of the number of fruits in the inflorescence: 21.0 and 27.4%, respectively. The maximum impact on the indicators of potential and real seed productivity was exerted by the species (56.1-59.0%). The share of influence of the year was 17.4-21.6%. The contribution of interaction effects to the variability of indicators is recorded as 20.3-20.6%. The stability and quality indicators of seed productivity of plants is one of the most important criteria for their success in cultivation. Quantitative characteristics of seeds are of interest in the development of seed science of introducers. The high reproductive potential under experimental conditions indicates the possibility of seed production of the studied genotypes.