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Pollination biology of northern red and black oakAuthor(s): Robert A. Cecich; William W. Haenchen
Source: In: Gottschalk, Kurt W.; Fosbroke, Sandra L. C., ed. Proceedings, 10th Central Hardwood Forest Conference; 1995 March 5-8; Morgantown, WV.: Gen. Tech. Rep. NE-197. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 238-246
Publication Series: General Technical Report (GTR)
Station: Northeastern Research Station
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DescriptionPistillate flower abortion in northern red oak and black oak was evaluated in relation to pollination and fertilization. The presence, position, and characteristics of the pollen grains, pollen tubes, and ovules were determined with bright field and fluorescence microscopy. Flower survival counts were made weekly, from late April to mid- September. Both species have rudimentary ovules and small locules during the first growing season. Pollen tubes cease growth during the first growing season in mid-May at the level of the distal end of the perianth and juncture of the three stigmas. In the next growing season, meiosis in the mature ovules may trigger the advance of the pollen tubes into the locules. Fertilization occurred in mid-June for northern red oak and late June in black oak.
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CitationCecich, Robert A.; Haenchen, William W. 1995. Pollination biology of northern red and black oak. In: Gottschalk, Kurt W.; Fosbroke, Sandra L. C., ed. Proceedings, 10th Central Hardwood Forest Conference; 1995 March 5-8; Morgantown, WV.: Gen. Tech. Rep. NE-197. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 238-246
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