Full TGIF Record # 100996
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Web URL(s):http://www.pgrsa.org/sites/default/files/conference_proceedings/pgrsa-1983.pdf#page=67
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Author(s):Kaufmann, J. E.; Sandbrink, J. J.; Stehling, S. J.; Thibodeau, P. S.
Author Affiliation:Kaufmann: Monsanto Agricultural Products Company, St. Louis, Missouri
Title:Cool-season grass response to MON-4620 application site and timing
Section:Concurrent paper session B
Other records with the "Concurrent paper session B" Section
Meeting Info.:East Lansing, MI: June 19-23, 1983
Source:Proceedings of the Plant Growth Regulator Society ofAmerica. 1983, p. 61-67.
Publishing Information:Plant Growth Regulator Society of America, Lake Alfred, Florida
# of Pages:7
Keywords:TIC Keywords: Cool season turfgrasses; Growth regulators; Seedhead development; Seedhead inhibition; Festuca arundinacea; Growth chambers; Growth
Cultivar Names:Kentucky 31
Trade Names:MON-4620
Abstract/Contents:"MON-4620 has been shown to inhibit seedheads and reduce vegetative growth of cool-season grasses for 6 weeks. Seedhead development is synchronous in perennial cool-season grasses and usually occurs during late April or May. Optimum application timing for combination seedhead and vegetative control was during the month of April in 1982. Earlier applications in late March were effective but resulted in delay of spring green-up. Applications in early May were too late for seedhead control, however, vegetative control was acceptable and seedheads could have been mechanically removed. Relative to seedhead ontogeny, applications before seedhead differentiation prevented seedhead formation. Applications after differentiation and before elongation prevented seedhead elongation. Applications after elongation had begun resulted in shortened seedstalks that were considered objectionable in an unmowed area. MON-4621 (flowable) and MON-4623 (granular) were found to be effective with crown, soil surface and soil subsurface placement. Leaf applications were not effective. Thus MON-4620 appears to be xylem but not phloem mobile. The ideal application site appears to be the turfgrass crown or thatch area."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kaufmann, J. E., J. J. Sandbrink, S. J. Stehling, and P. S. Thibodeau. 1983. Cool-season grass response to MON-4620 application site and timing. Proc. Plant Growth Regul. Soc. Am. p. 61-67.
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MSU catalog number: SB 128 .P54
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