Full TGIF Record # 8046
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Publication Type:
Author(s):Stahnke, G. K.; Beard, J. B.
Author Affiliation:The Texas Agricultural Experiment Station
Title:An assessment of antitranspirants on creeping bentgrass and bermudagrass turfs
Source:Texas Turfgrass Research - 1982. September 1982, p. 36-38.
Publishing Information:College Station, TX: Texas Agricultural Experiment Station.
Keywords:TIC Keywords: Cynodon dactylon; Abscisic acid; Water conservation; Water use; Cynodon transvaalensis; Antitranspirants; Agrostis stolonifera; Phenylmercury acetate
Abstract/Contents:Five antitranspirants were tested for their relative effectiveness in reducing water use in Texas. Abscisic acid (ABA), B-napthoxyacetic acid, Stoma-seal (R) (a mixture of phenylmercuric acetate (PMA) and Aqua-Gro (R)). Aqua-Gro (R) (a wetting agent), and Experimental #913 (a monoglycenol ester of decenyl succinic acid in Aqua-Gro (R)), were applied as a foliar spray or as a soil drench on Penncross creeping bentgrass (Agrostis palustris) and Tifway bermudagrass (Cynodon Dactylon X Cynodon transvaalensis), mowed at 2.5 cm. Testing maximized evapotranspiration rate. Water loss was measured every four hours. Comparisons of evapotranspiration rates to untreated plants determined the effectiveness of the treatment. Damage to the turf was also considered including: chlorophyll content, plant color, and relative shoot growth. Base evapotranspiration rates for bermudagrass was 1/3 less than the base evapotranspiration rate of bentgrass. ABA and Experimental #913 combined with Aqua-Gro (R), reduced transpiration on bentgrass. 59% and 26%, respectively. ABA is not economical at this time. Stoma-Seal (R) and B-napthoxyacetic acid at effective application rates caused eventual death on the turf. ABA on bermudagrass, applied at 10 -4M, reduced transpiration 25%, with a 23% loss in shoot rate. Further research is needed on Experimental #913 and Stoma-Seal (R) to assess their potential as antitranspirants.
Note:PR #4041
Also in Proceedings of the Florida Turf Grass Conference, 1982, Vol. 30, pp.43-46
Geographic Terms:Texas
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Stahnke, G. K., and J. B. Beard. 1982. An assessment of antitranspirants on creeping bentgrass and bermudagrass turfs. Tex Turfgrass Res. p. 36-38.
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MSU catalog number: SB 433 .T42
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