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KMID : 0903619990400020281
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Journal of the Korean Society for Horticultural Science
1999 Volume.40 No. 2 p.281 ~ p.285
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Effects of Uniconazole on the Growth of 4 Turfgrass Species Treated by 3 Different Application Methods
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곽병화/Kwack, Beyoung Hwa
허무룡/Perry, Leonard P ./Huh, Moo Ryong
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Abstract
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´CD-27´ bermudagrass (Cynodon dactylon PERS.), ´Nustar´ Kentucky bluegrass (Poa pratensis L.), ´Putter´ creeping bentgrass (Agrostis stolonifera subsp. stolonifera L.), and ´J-89´ tall fescue (Festuca arundinacea SCHREB.) were treated with uniconazole [(E)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1,2,4-tdazole-1-yl)-1-penten-3-ol] at 0.0, 5.0, 10.0, 15.0 or 20.0 ㎎·L^(-1) to evaluate efficiency in suppressing height, increasing the number of tillers, and improving turfgrass quality. Uniconazole was applied as a soil drench, foliar spray, or seed pre-soak. Uniconazole at 5.0 ㎎·L^(-1) was enough to suppress the height of the four species in all three methods. Drenching was more effective than spray and seed presoaking in height reduction on all species. Number of tillers increased with uniconazole drenching in ´CD-27´ bermudagrass, ´Nustar´ ´Kentucky bluegrass, and ´J-89´ tall fescue, but not with ´Putter´ creeping bentgrass. Uniform and acceptable turf quality were achieved by drenching with ´Nustar´ Kentucky bluegrass, ´Putter´ creeping bentgrass, and ´J-89´ tall fescue, but not with ´CD-27´ bermudagrass.
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