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| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/pdfs/68/2/AJ0680020410
Last checked: 12/08/2016
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| Publication Type:
| Refereed |
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| Author(s): | Buettner, Mark R.;
Ensign, R. D.;
Boe, A. A. |
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| Author Affiliation: | Buettner: Former Graduate Research Assistant; Ensign: Professor, Plant Breeding and Genetics; Boe: Associate Professor,Horticulture , Department of Plant and Soil Sciences, University of Idaho, Moscow, Idaho |
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| Title: | Plant growth regulator effects on flowering of Poa pratensis L. under field conditions |
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| Source: | Agronomy Journal. Vol. 68, No. 2, March/April 1976, p. 410-413. |
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| Publishing Information: | Madison, WI: American Society of Agronomy |
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| # of Pages: | 4 |
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| Keywords: | TIC Keywords: Plant growth regulators; Flowering; Poa pratensis; Flaming; Herbicides; Cultivar variation; Ethephon; Simazine; Bromacil; Chlormequat chloride; Gibberellic acid; Panicles; Terbacil
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| Abstract/Contents: | "The imminent ban on fall burning of Kentucky bluegrass ( Poa pratensis L.) residues has threatened the grass seed industry with subsequent reductions in yield. In potential alternative to burning, eight chemicals were applied at two developmental growth stages of unburned plots of Kentucky bluegrass. Information on panicle emergence, panicle number, and seed weight was recorded. Applications of growth regulators were made in autumn to 'Merion,' 'Fylking,' and 'Nugget,' and in spring to 'Park' and 'Baron'. All treatments were applied during the second seed crop year. Growth regulator applications affected flowering in Merion more than in the other cultivars. Terbacil, 3-tert-butyl-5-chloro-6-methyluracil; chlormequat, (2-chloroethyl)-trimethylammonium chlorides; and ethephon, (2-chloroethyl)-phosphoric acid, increased panicle numbers in Merion by 84, 73, and 70% above controls. Simazine, 2-chloro-4, 6-bis-(ethylamino)-5-triazine, increased panicle numbers in Fylking and Nugget by 71 to 56%. Seed weight in Merion was increased by 11% after gibberellin (Postassium gibberellate) application. Terbacil and bromacil (5-bromo-3-sec-butyl-6-methyluracil) applied to Park and Baron decreased panicle numbers. Gibberellin, ethephon, chlormequat, and simazine autumn applications delayed panicle emergence. Bromacil and 2,4-d ichlorophenoxyacetic acid) spring applications to Baron delayed panicle emergence. Gibberellin, ethephon, and bromacil spring applications hastened panicle emergence in Park. Increased Kentucky bluegrass seed yields are possible with selective plant growth regulators, primarily due to increased panicle numbers and seed size." |
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| Language: | English |
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| References: | 13 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Buettner, M. R., R. D. Ensign, and A. A. Boe. 1976. Plant growth regulator effects on flowering of Poa pratensis L. under field conditions. Agron. J. 68(2):p. 410-413. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/pdfs/68/2/AJ0680020410
Last checked: 12/08/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 22 .A45 |
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