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Ukr. Bot. J. 2014, 71(5): 590–598
https://doi.org/10.15407/ukrbotj71.05.590
Plant Taxonomy, Geography and Floristics

Pollen of Pinus pallasiana (Pinaceae) from plantings of environmentally safe and technogenically contaminated lands of the steppe zone of Ukraine

I.I. Korshikov1, E.V. Lapteva2
Abstract

Fertility, viability, morphometric variability of pollen, occurrence of its anomalies and growth deviations of pollen tubes were studied in Pinus pallasiana D. Don of «Askania-Nova» Biosphere Reserve and three plantings from Kryvyi Rig, growing within the areas of emissions of metallurgical works (smolters), and also on the iron ore dump. The pollen viability was high in all of the plantations, being ranged from 81.6 to 87.2%. Trees from the plantations were mostly distinguished by their abnormal pollen percentages and deviating pollen tubes growth when germinated on 15 % saccharose. The rates of these anomalies were, respectively, 7.9 % and 3.2% in trees from the reserve, whereas they made 13.2 to 24.8 % and 9.1 to 47.1 % in trees from three Kryvyi Rig plantations.

Keywords: Pinus pallasiana, viable pollen, anomalies, pollen tube, Kryvyi Rig, Askania-Nova

Full text: PDF (Ukr) 2.00M

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