Pollen viability of Picea obovata Ledeb. under technogenic stress conditions
E. V. BAZHINA1,2, M. I. SEDAEVA1
1V. N. Sukachev Institute of Forest SB RAS, Krasnoyarsk, Russia
2Siberian Federal University, Krasnoyarsk, Russia
Keywords: Picea obovata Ledeb, pollution, germination of pollen, length of pollen tubes, starch content
Abstract
The Siberian spruce (Picea obovata Ledeb.) pollen viability was studied on the border of Krasnoyarsk city as well as unpolluted growth conditions. The study discovered the variability and correlation between the functional characteristics of pollens, as well as a low rate of development anomalies. The viability of pollen growth in forest ecosystems of the Eastern Sayans middle mountains (northeast border of national park “Krasnoyarskie Stolby”) decreased under pollution press. A great variety of pollen viability characteristics of the Siberian spruce pollen makes evident the high degree of flexibility and adaptability of species′ reproductive processes.
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