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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Fagerness, M. J.;
Yelverton, F. H. |
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| Author Affiliation: | Department of Crop Science, North Carolina State University, Raleigh, NC |
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| Title: | Effects of turfgrass growth regulators on lateral development of hybrid and common bermudagrass. |
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| Meeting Info.: | 51st Annual Meeting, Birmingham, AL, January 26-28, 1998 |
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| Source: | Southern Weed Science Society Proceedings. Vol. 51, 1998, p. 65-66. |
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| Publishing Information: | Champaign, IL: Southern Weed Science Society. |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Cynodon dactylon; Hybrid bermudagrasses; Plant growth regulators; Lateral growth; Trinexapac-ethyl; Paclobutrazol; Application rates; Application frequency; Stolon growth; Spread
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| Abstract/Contents: | "The known effects of commercial turfgrass growth regulators include inhibition of shoot growth and enhancements of both turfgrass quality and shoot density. However, it is unclear as to the specific effects of these products on lateral development of turfgrasses with rhizomatous and/or stoloniferous growth habits. Research was conducted in the summer of 1997 at the Sandhills Research Station near Jackson Springs, NC to evaluate the effects of single and multiple applications of trinexapac-ethyl and paclobutrazol on lateral development of one-year old stands of 'Tifway' bermudagrass and 'Numec-Sahara' commmon bermudagrass. Treatments included trinexapac-ethyl at 0.07 kg/ha or 0.11 kh/ha or paclobutrazol at 0.56 kg/ha and were applied either once, twice, or three times, with four week intervals sperating repeat applications. Sod strips 30 cm wide were removed from the center of all plots 24 hours after treatments were applied and sand was used to backfill these strips. Subsequent measurements of stolon length, stolon number, overall strip width, and precent grow-in were used to evaluate treatment effects on the lateral development of both species. Results showed that trinexapac-ethyl caused a significant decrease in 'Tifway' stolon length, especially with repeat applications. Paclobutrazol did not induce this effect. Stolon number was unaffected by any of the PGR treatments. Through 8 WAT, repeat applications of trinexapac-ethyl on 'Tifway' impeded the decrease in strip width that was observed in nontreated plots. Beyond 8 WAT, regrowth into strips was extensive enough to where measurements had to be changed to precent grow-in. Values for percent grow-in taken at 10 and 12 WAT showed that trinexapac-ethyl, especially when applied more than once, had inhibited the grow-in ability of 'Tifway'. Similar measurements were taken for common bermudagrass but the experiment was initiated six weeks after that for 'Tifway' and results were subsequently inconclusive, in terms of distinguishing any treatment differences. Shoot growth from rhizomes was not observed to be significant in strips for either species, perhaps due to their recent establishment, and this should be considered before drawing any overall conclusions." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Other items relating to: P G Rs 1997-2006 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fagerness, M. J., and F. H. Yelverton. 1998. Effects of turfgrass growth regulators on lateral development of hybrid and common bermudagrass.. South. Weed Sci. Soc. Proc. 51:p. 65-66. |
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MSU catalog number: SB 611 .S6 v.51 |
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