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| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/pdfs/76/5/AJ0760050756
Last checked: 12/09/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Danneberger, T. K.;
Vargas, J. M. Jr. |
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| Author Affiliation: | Danneberger: Assistant Professor, Department of Agronomy, Ohio State University, Columbus, Ohio; Vargas: Professor, Department of Botany and Plant Pathology and Pesticide Research Center, Michigan State University, East Lansing, Michigan |
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| Title: | Annual bluegrass seedhead emergence as predicted by degree-day accumulation |
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| Source: | Agronomy Journal. Vol. 76, No. 5, September/October 1984, p. 756-758. |
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| Publishing Information: | Madison, WI: American Society of Agronomy |
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| # of Pages: | 3 |
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| Keywords: | TIC Keywords: Poa annua; Seedhead development; Growing degree days; Models; Root growth; Aesthetic values; Playability
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| Abstract/Contents: | "Seedhead production of annual bluegrass (Poa annua L.) during the spring reduces annual bluegrass root production and disrupts the aesthetic and playing qualities of the turf. A method of predicting when annual bluegrass seedheads visually emerge through maximum production would be a benefit to turf managers in that management practices such as vertical mowing and core cultivation could be suitably adjusted. A model to predict the number of seedheads from visual emergence through maximum production for a perennial annual bluegrass turf was developed from three field locations in Michigan. The proposed model is seedhead no. = - 6249.4 + 41.099 (DD) - 0.08573 DD2 + 0.0000575 DD3 where DD = degree-day accumulation above 286 K beginning April (R2 = 0.65)." |
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| Language: | English |
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| References: | 14 |
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| Note: | Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Danneberger, T. K., and J. M. Jr. Vargas. 1984. Annual bluegrass seedhead emergence as predicted by degree-day accumulation. Agron. J. 76(5):p. 756-758. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/pdfs/76/5/AJ0760050756
Last checked: 12/09/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: S 22 .A45 |
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