We, with the help of an optical microscope, measurements were taken of length and width of pollen grains and their viability determined by the method of staining solution iodine – chloral hydrate. Studied species such as downy birch (B. pubescens Ehrh), the Karelian birch (B. pendu-la Roth var. Carelica Merkl.) dalecarlica and birch (Betula dalecarlica L). All the necessary work of collecting material was produced in the spring of 2015 on the territory of Semiluksky nursery in the Voronezh region. The research data were obtained about the size and viability of pollen types is presented and conclusions are made.
pollen, viability, size, male gametophyte, polymorphism
1. Bokov, D.O. Allergennyy profil´ polnogo ekstrakta pyl´tsy berezy (Betula Pendula Roth): izuchenie metodologicheskikh podkhodov k identifikatsii i kolichestvennomu opredeleniyu mazhornogo belka BET V 1 metodom VEZhKh/MS/MS [Tekst] / D.O. Bokov, V.V. Smirnov. Khimiya rastitel´nogo syr´ya. - 2014. - № 2. - S.213-318.
2. Vetchinnikova, L.V. Zhirnokislotnyy sostav lipidov pyl´tsy osnovnykh predstavi-teley roda Betula L. [Tekst] / L.V. Vetchinnikova, O.S. Serebryakova, M.K. Il´inova. Trudy karel´skogo nauchnogo tsentra RAN. - 2012. - № 2. - S. 56-62.
3. Geodakyan, V.A. Kolichestvo pyl´tsy kak peredatchik ekologicheskoy informatsii i re-gulyator evolyutsionnoy plastichnosti rasteniy [Tekst] / V.A. Geodakyan. Zhurn. obshchey biol.- 1978. - T. 39.- № 5. - S. 743-751.
4. Demin, M.S. Sostav metabolitov lipofil´noy fraktsii plodov nogotkov lekarst-vennykh [Tekst] / M.S. Demin, V.I. Osipov, N.B. Demina, V.A. Bykov. Voprosy biologiche-skoy, meditsinskoy i farmatsevticheskoy khimii. - 2010. - № 3. - S.32-35.
5. Isakov, I.Yu. Vliyanie sposoba opyleniya na selektsionnye osobennosti semennogo potomstva Betula penduia Roth. i V. pubescens Ehrh. [Tekst]: dis. kand. s-kh. nauk: 06.03.01/ I.Yu. Isakov. - Voronezh, 2001. - 218 s.
6. Nikolaevskaya, T.S. Morfofiziologicheskaya kharakteristika pyl´tsy razlichnykh vi-dov berezy v usloviyakh Vostochnoy Fennoskandii [Tekst] / T.S. Nikolaevskaya, L.V. Vetchin-nikova, O.N. Lebedeva, T.Yu. Kuznetsova. Trudy Karel´skogo nauchnogo tsentra Rossiyskoy akademii nauk. - 2008. - № 14. - S. 84-91.
7. Tsvelev, N. N. O rodakh Betula L. i Alnus Mill (Vetulaseae) v Vostochnoy Evrope [Tekst] / N.N. Tsvelev. Novosti sistematiki vysshikh rasteniy. - SPb. Izd-vo Sankt-Peterburgskoy gosudarstvennoy khimikofarmatsevticheskoy akademii. - 2002. - T. 34. - S. 47-73.
8. Chelak, V. R. Biologicheskie svoystva pyl´tsy - zhiznesposobnost´, fertil´nost´ i steril´nost´ [Tekst] / V.R. Chelak. Bot. issled. Kishinev. - 1989. - № 4. - S. 31-38.
9. Shevtsova, T.V. Belkovo-lipidnyy sostav pyl´tsy berezy borodavchatoy (Betula verru-cosa) i ee antioksidantnaya aktivnost´ v zavisimosti ot mesta proizrastaniya [Tekst] / T.V. Shevtsova, E.G. Garkavaya, Ya. Brindza, T.S. Bryuzgina, V.A. Groza. Vestnik Dnepropetrovsko-go universiteta. Biologiya, ekologiya. - 2013. - 21 (2). - S. 105-112.
10. Brovarskij, V. Veeli obnožkovy peľ. FOP I. S. [Text] / V. Brovarskij, J. Brindza. Maida-chenko. - 2010.
11. Corden, J. UK regional variations in Betula pollen (1993-1997) [Text] / J. Corden, W. Millington, J. Bailey et at.. Aerobiologia. - 2000. - Vol. 16. no. 2. - pp. 227-232.
12. Cotos-Yáñez, R.T. Short-term prediction of Betula airborne pollen concentration in Vigo (NW Spain) using logistic additive models and partially linear models [Text] / R.T. Cotos-Yáñez, F.J. Rodrnguez-Rajo, M.V. Jato. Int. J. Biometeorol. - 2004. - no. 48. - pp. 179-185.
13. EI-Ghazaly, G. Localization and release of allergens from tapetum and pollen grains of Betula pendula [Text] / G. EI-Ghazaly, R. Moate, M. Walles, B. Takahashi, Y. Cresti, F. Ferreira, G. Obermeyer. Protoplasma. - 1999. no. 208. - pp. 37-46.
14. Kedzia, B. Nowe badania nad biologicznymi wlasciwosciami pylku kwiatowego [Text] / B. Kedzia, E. Holderna-Kedzia. Postepy Fitoterapii. - 2012. - no. 1. - pp. 48-54.
15. Loverine, P. T. Pollen germination and tube growth [Text] / P. T. Loverine. Ann. Review Plant Physiol, and Plant Molec. Biol. - 1997. - Vol. 48. - pp. 461-491.
16. Pasonen, H.-L. Do pollen donors with fastest-growing pollen tubes sire the best offspring in an anemophilous tree, Betula penduia (Betulaceae) [Text] / H.-L. Pasonen, P. Puikkinen, M. Ka-pyla. Amer. J. Bot. - 2001. - Vol. 88. - no. 5. - pp. 854-860.
17. Pietarinen, P. Pollen performance and male fitness in an anemophilous, monoecious tree, Betula penduia [Text] / P. Pietarinen, H.-L. Pasonen. Can. J. Bot. - 2004. - Vol. 82. - no. 9. - pp. 1284-1291.
18. Russkaya sluzhba BBC [Elektronnyy resurs]. - Rezhim dostupa: http://www.bbc.com/russian/science/2015/09/150914_met_office_hottest_years. - Zagl. s ekrana.
