Skip to Main Content
The allelopathic influence of post oak (Quercus stellata) on plant species in southern U.SAuthor(s): Nicollette A. Baldwin; Michael K. Crosby
Source: In:Proceedings of the 18th biennial southern silvicultural research conference. e-Gen. Tech. Rep. SRS-212. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 614 p.
Publication Series: Proceedings - Paper (PR-P)
Station: Southern Research Station
PDF: View PDF (577.0 KB)
DescriptionPost oak (Quercus stellata) is a commonly occurring tree in the southeastern United States, offering forage and shelter for a variety of wildlife as well as having commercial uses. This species is often planted in parks and urban green-spaces for the shade it offers. Previous studies have found that parts of the plant can be toxic to livestock and that it can inhibit the germination and/or growth of plant species in its vicinity. This study focuses on the allelopathic potential of post oak in an urban, old growth forest. Post oak was selected subsequent to an understory inventory of plant species on a plot established in Marshall Forest in Rome, GA. White oak (Quercus alba) and chestnut oak (Quercus montana) seeds, and muscadine (Vitis rotundifolia) were used to determine if leachates prepared from leaves collected from Post oak inhibit germination and/or growth. Radish (Raphanus sativus) was also used, as it was previously found to be impacted by post oak. Two different concentrations of leachate were prepared and tested on the selected species. The results revealed significant differences in both germination rates and mean sprout lengths between the control (distilled water) and both concentration groups. No significant difference was found between the two concentrations of leaf leachate during the experiment. These results suggest that post oak inhibits the germination rate and sprout length of the tested species. It is important that resourcemanagers understand these relationships in managed landscapes (e.g., parks). In the future, it may be possible to utilize allelochemicals from post oak as a biocontrol agent.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- 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.
CitationBaldwin, Nicollette A.; Crosby, Michael K. 2016. The allelopathic influence of post oak (Quercus stellata) on plant species in southern U.S. forests. In:Proceedings of the 18th biennial southern silvicultural research conference. e-Gen. Tech. Rep. SRS-212. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 8 p.
- Floristic diversity, stand structure, and composition 11 years after herbicide site preparation
- Quercus stellata growth and stand characteristics in the Quercus stellata-Quercus marilandica forest type in the Cross Timbers region of Central Oklahoma
- Soil-seed bank survival in forests of the southern United States
XML: View XML