POLLEN MORPHOLOGY OF THE TETRAPLOID SPECIES TRITICUM CARTHLICUM NEVSKII (= T. PERSICUM VAV.) IN THE CONDITIONS OF THE TYUMEN REGION
The pollen of two tetraploid wheat species and one hexaploid one was studied. Comparative analysis showed that the pollen of these species did not differ in structure. Measurements of the pollen parameters under a light microscope showed that the pollen of the T.carthlicum Nevskii (=T. persicum Vav) species was the smallest (45.0x40.3 цт) in comparison with the pollen of other species. Differences in the size ofpollen were found between the varieties of Kartalinskay wheat. A larger pollen grain was observed in the fuliginosum variety (49.1x43.7^m). Studies have shown that the size ofpollen is an indicator of the cultivation of a species.