Full TGIF Record # 14183
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Author(s):Menn, W. G.; Beard, J. B.; Kim, K. S.; Vermeulen, P. H.
Author Affiliation:Menn: Instructor and Turfgrass Specialist; Beard: Professor, Turfgrass Physiology; Kim: Technician; Vermeulen: Graduate Research Assistant, Turfgrass Physiology, The Texas Agricultural Experiment Station, Department of Soil and Crop Sciences, College Station, Texas
Title:1985 St. Augustinegrass cultivar and selection characterizations including shade adaption: College Station, Texas
Other records with the "Turfgrass" Section
Source:Texas Turfgrass Research - 1986. May 1987, p. 17-20.
# of Pages:4
Publishing Information:College Station, TX: Texas Agricultural Experiment Station.
Keywords:TIC Keywords: Shade resistance; Stenotaphrum secundatum; Variety trials; Quality evaluation; Establishment rate; Spring green-up
Abstract/Contents:Presents preliminary comparisons of (1) turf qualities and percent greenup among the six near-release selections and four commercially available cultivars of St. Augustinegrass; (2) turf quality among commercially available cultivars and three selections of St. Augustinegrass under the natural shade condition; and (3) turf establishment rates of two selections and seven cultivars of St. Augustinegrass under the environmental conditions in College Station, Texas. Visual estimates of turf quality were made on a biweekly basis. A scale of 1 to 9 was used to depict the degree of quality. Any rating value below 5.0 would indicate an unacceptable turf for lawn use. No significant differentials in disease or insect injury were noted during the 1985 growing season. Percent greenup ratings were made visually on a biweekly basis from March through May. SATX 8262, SATX 8308, and SATX 8231 showed significantly higher quality turfs than several of the commercially available cultivars. SATX 8203, which showed very high quality turf in 1984, produced very poor quality in 1985 mainly due to the cold damage during the winter of 1984 and subsequent slow recovery. It should be noted, however, that SATX 8203 showed the highest quality rating at the end of the season (September rating). Among the commercially available cultivars, Texas Common also ranked the highest during the previous two consecutive years. In terms of greenup, SATX 8208 and SATX 8262 showed the earliest recovery. By the end of March, SATX 8208 and SATX 8262 produced over 75% greenup, while SATX 8203 had less than 10% greenup. Floratam and Floralawn showed very poor greenup during March and April; however, they produced over 98% greenup in early May. In the Shade Adaption Study, Floratam failed completely. No significant differences in turf quality were found among the other six entries due to variablity in vegetaive establishment among the replications. However, Texas Common, SATX 8262, and SATX 8208 ranked better than the remaining three. This assessment represents only the first year's data, with further investigations planned to obtain detailed results concerning shade adaption. Most cultivars showed over 90% establishment after 3.5 months of growth. Only SATX 8262 showed slow establishment. Floratam and Floralawn consistently ranked faster in establishment than the other entries.
See Also:Other items relating to: SHADEW
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Menn, W. G., J. B. Beard, K. S. Kim, and P. H. Vermeulen. 1987. 1985 St. Augustinegrass cultivar and selection characterizations including shade adaption: College Station, Texas. Tex Turfgrass Res. p. 17-20.
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