Full TGIF Record # 174750
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Author(s):McCarty, Lambert B.; McCauley, Raymond K.; Liu, Haibo; Totten, F. Wesley; Toler, Joe E.
Author Affiliation:McCarty, McCauley, Liu and Totten: Department of Environmental Horticulture, Poole Agricultural Center; Toler: Department of Applied Economics and Statistics, Clemson University, Clemson, SC
Title:Perennial ryegrass allelopathic potential on bermudagrass germination and seedling growth
Section:Turf management
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Source:HortScience. Vol. 45, No. 12, December 2010, p. 1872-1875.
# of Pages:4
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Allelochemicals; Cynodon dactylon; Germination inhibitors; Growth analysis; Lolium perenne; Overseeding competition; Root-shoot ratio; Seedling vigor; Soil amendments
Cultivar Names:Arizona common
Abstract/Contents:"Overseeded perennial ryegrass (Lolium perenne L.) aggressively competes with bermudagrass [Cynodon dactylon (L.) Pers.] for resources and may adversely affect spring transition by releasing allelochemicals into the environment. Growth chamber studies examined germination and growth of 'Arizona Common' bermudagrass in soil amended with 0%, 2%, 12%, or 23% perennial ryegrass root or shoot debris or in soil treated with irrigation water in which perennial ryegrass roots at 0, 5, 10, or 20 g·L-1 or shoots at 0, 10, or 20 g·L-1 had been soaked. Inhibitory effects on bermudagrass germination and growth were most extensive when soil was amended with ryegrass shoot debris, because germination, root ash weight, root length density, and root mass density were reduced 33%, 55%, 30%, and 52%, respectively. Soil amended with ryegrass root debris only inhibited bermudagrass-specificroot length. Application of irrigation water containing either ryegrass root or shoot extracts only inhibited bermudagrass-specific root length. In conclusion, results obtained when soil was amended with shoot debris demonstrated perennial ryegrass can inhibit bermudagrass germination and growth in controlled environments."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McCarty, L. B., R. K. McCauley, H. Liu, F. W. Totten, and J. E. Toler. 2010. Perennial ryegrass allelopathic potential on bermudagrass germination and seedling growth. HortScience. 45(12):p. 1872-1875.
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DOI: 10.21273/HORTSCI.45.12.1872
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MSU catalog number: b2217685a
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