Skip to Main Content
Influence of weather at time of pollenation on acorn production of Quercus alba and Quercus velutinaAuthor(s): Robert A. Cecich; Neal H. Sullivan
Source: Canadian Journal of Forest Research. 29(12): 1817-1823. (1999)
Publication Series: Scientific Journal (JRNL)
Station: North Central Research Station
PDF: View PDF (685.45 KB)
DescriptionPistillate flower development and acorn production were observed in small populations of white oak (Quercus alba L.) and black oak (Quercus velurina Lam.) in central Missouri from 1990 to 1997. There were significant year-year differences in the size of flower crops for both species and significant tree-tree differences in black oak. About 7% of the white oak flowers matured into acorns: most flowers aborted by early July just after fertilization. About 12% of the black oak flowers matured into acorns, but some individual trees never or rarely produced a mature acorn. The number of fertilized flowers in white oak and black oak in early July was positively correlated with acorn production. Over all trees and years, the number of flowers and acorns were significantly correlated. Acorn production varied in relation to weather variables during the time of pollination. Simple regression models were good predictors of white oak acorn production but not of black oak acorn production. Maximum temperature and the number of days with hail had negative effects on acorn production. The numberof days of rain during the pollination period was positively correlated with flower survival in black oak but not with white oak.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationCecich, Robert A.; Sullivan, Neal H. 1999. Influence of weather at time of pollenation on acorn production of Quercus alba and Quercus velutina. Canadian Journal of Forest Research. 29(12): 1817-1823. (1999)
Keywordsblack oak, white oak, acorn production, pollination
- Response of white oak and black oak seedlings to a mid-story removal
- Effects of midstory removal on underplanted black oak and white oak in the western Cumberland Plateau
- Correlations of leaf area with length and width measurements of leaves of black oak, white oak, and sugar maple
XML: View XML