Embryological Features of Laburnum anagyroides Medik.
Laburnum anagyroides Medik. (Leguminosae) is a promising ornamental woody plant, which is native to the Mediterranean. It is characterized by the following indicators of seed reproduction during introduction in the Lower Volga region: potential seed productivity is 5.24 ± 0.08 ovules on 1 ovary, real seed productivity is 1.53 ± 0.05 seeds per 1 fruit, the reproduction efficiency coefficient is 29.2%. Seeds quickly pass into a state of deep physical rest and cannot independently leave this state in spring. Germination of both freshly-harvested and long-stored intact seeds does not exceed 10%. This is one of the reasons for the lack of self seeding.
1. Hewood V. H. Flowering plants of the world. Batsford : Oxford University Press, 1993. 336 p.
2. Sato H., Tahara S., Ingham J. L., Dziedzic S. Z. Isofl avones from pods of Laburnum anagyroides // Phytochemistry. 1995. Vol. 39, №3. P. 673–676.
3. Balabushka V. K. Results of growth regulators tested during reproduction of tree introductions by summer cuttings. Byulleten GBS, 1990, vol. 156, pp. 65– 67 (in Russian).
4. Yudakova O. I., Gutorova O. V., Belyachenko Yu. A. Metody issledovaniya reproduktivnykh struktur i organov rasteniy [Methods of investigation of reproductive plant structures and organs]. Saratov, Izd-vo Sarat. un-ta, 2012. 38 p. (in Russian).
5. Shamrov I. I. Semyazachatok tsvetkovykh rasteniy: stroenie, funktsii, proiskhozhdenie [Ovary of fl owering plants: structure, function, origin]. Мoscow, KMK Publ., 2008. 350 p. (in Russian).
6. Rembert D. H. Jr. Megasporogenesis in Laburnum anagyroides Medic. – a case of bisporic development in Leguminosae // Transactions of the Kentucky Academy of Science. 1966. Vol. 27. P. 47–50.
7. Rodriguez-Riano T., Valtuena F. J., Ortega-Olivencia A. Megasporogenesis, Megagametogenesis and ontogeny of the aril in Cytisus striatus and C. multifl orus (Leguminosae : Papilionoideae) // Annals of botany. 2006. Vol. 98. P. 777–791.
8. Timofeeva S. N., Yudakova O. I., Elkonin L. A. Breaking Physical Domancy of Seeds by in vivo and in vitro Conditions. Izv. Saratov Univ. (N. S.), Ser. Chemistry. Biology. Ecology, 2017, vol. 17, iss. 1, pp. 30–35 (i n Russian). DOI: https://doi.org/10.18500/1816-9775-2017-17-1-30-35