The objective of the research was to reveal the features of inheritance of the sign of mass by berry at various density of placement of nutlets on berries of parental genotypes. The relationships between inheritance of average mass of berry and indicators of average of nutlets on 1 berry, on 1 cm2 of its sur-face and the average mass of pulp on 1 nutlet at parental forms and in a number of posterities from their crossing with two small-fruited wild-growing forms and among themselves were studied. The signs of the number of nutlets on 1 berry and the mass of pulp on 1 nutlet were inherited inde- pendently. The first sign was defined by generally complementary, additive genes, and the second was influenced by various groups of genes in par-ticular defining the number of inflorescences on 1 plant and frost resistance of rudiments of inflores-cences. The number of nutlets on 1 cm2 of the sur-face of berry species could serve as indirect indica-tor of the contribution this genotype will make when crossing in the mass of pulp on 1 nutlet, i. e. in car-pophore mass. More large-fruited and fruitful fami-lies and high exit of large-fruited seedlings were received when the crossings were executed be-tween two large-fruited grades one of which pro-duced berries with a large number of nutlets weigh-ing pulp at 1 nutlet not lower than 18.0 mg (Alpha, Festivalnaya), and the second - with high average value of mass of pulp on 1 nutlet, about 30.0 mg (Rubinovy kulon).
Fragaria × ananassa Duch, variety, crossing, hybrid, posterity, selection
1. Sherman W.B., Janick J. Greenhouse evalua-tion of fruit size and maturity in strawberry // Proc. Am. Soc. Hort. Sci. - 1966. - V. 89. - P. 303-308.
2. Webb R. A., Terblanche J.H., Purves J.V., Beech M.G. Size factors in strawberry fruit // Scientia Hort. - 1978. - V. 9 (4). - P. 347-356.
3. Suhareva N.B. Rol' otdalennoy gibridizacii v formoobrazovanii Fragaria (v prirode i opyte) // Problemy apomiksisa i otdalennoy gibridizacii: sb. nauch. tr. - L., 1987. - S. 168-182.
4. Hansche P.E., Bringhurst R.S., Voth V. Esti-mates of genetic and environmental parameters in the strawberry // Proc. Am. Soc. Hort. Sci. - 1968. - V. 92. - P. 338-345.
5. Spangelo L. P. S., Hsu C.S., Fejer S.O., Be-dard P.R., Rouselle G.L. Heritability and genetic variance components for 20 fruit and plant characters in the cultivated strawberry // Can. J. Genet. Cytol. - 1971. - V. 113. - № 3. - P. 443-456.
6. Zubov A.A. Geneticheskie osobennosti i se-lekciya zemlyaniki: avtoref. dis. … d-ra s.-h. nauk v forme nauch. dokl. - Michurinsk, 1992. - 44 s.
7. Stegmeir T.L., Finn C.E., Warner R.M., Han-cock J.F. Performance of an elite strawberry population derived from wild germplasm of Fragaria chiloensis and F, virginiana // Hort Science. - 2010. - V. 45. - P. 1140-1145.
8. Sherman W.B., Janick J., Erickson H.T. Inher-itance of fruit size in strawberry // Proc. Am. Soc. Hort. Sci. - 1966. - V. 89. - P. 309-317.
9. Shokaeva D.B. Nasledovanie velichiny yagod u zemlyaniki i ee svyaz' s chislom i razmescheniem oreshkov na ih poverhnosti // Agrarnaya nauka. - 2017. - № 5. - S. 7-10.
10. Programma i metodika sortoizucheniya plodovyh, yagodnyh i orehoplodnyh kul'tur. - Orel: Izd-vo VNIISPK, 1999. - 606 s.
11. Shokaeva D. Influence of severe conditions on inheritance of yield and yield components in June-bearing strawberries and problems of breeding for yield // Byulleten' Gosudarstvennogo Nikitskogo botanicheskogo sada. - 2009. - № 99. - S. 90-93.
12. Watkins R., Spangelo L.P.S. Genetic components from full, half, and quarter diallels for the cultivated strawberry // Can. J. Genet. Cytol. - 1971. - Vol. 113, № 4. - P. 515-521.
13. Ulyukin N.V., Kichina V.V., Popova I.V. Ocenka nekotoryh sortov zemlyaniki po kombinacionnoy sposobnosti // Genetika. - 1976. - T. 12. - № 12. - S. 49-55.
14. Ogol'cova T.P., Bayanova L.V. Kombinacionnye sposobnosti pyati sortov zemlyaniki po nekotorym komponentam urozhaynosti // Nauka - proizvodstvu. - Orel: Orlovskoe otdnie Priokskogo knizhnogo izd-va, 1981. - T. 12. - S. 37-50.
15. Shokaeva D. Important features of strawberry genotypes and peculiarities of inheritance // Sodininkystė ir daržininkystė. - 2007. - Vol. 26. - № 3. - P. 102-114.
16. Shokaeva D.B., Zubov A.A., Simpson D.W., Sokolov Y.P. Strawberry fruit size inheritance as dependent on achene number and flesh mass per achene // Acta Hortic. - 2014. - № 1049. - Vol. 1. - Pp. 207-213. Doi:https://doi.org/10.17660/Actahortic.2014.1049.21.
17. Shokaeva D.B. Svyaz' zimostoykosti ishodnyh genotipov zemlyaniki s nasledovaniem chisla socvetiy i sredney massy yagody // Agrarnaya nauka Evro-Severo-Vostoka. - 2017. - № 4. - S. 24-29.
