Full TGIF Record # 8029
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Author(s):Beard, J. B.; Toler, R. L.; Crocker, R. L.; Grisham, M. P.
Author Affiliation:The Texas Agricultural Experiment Station
Title:St. Augustinegrass cultivar update
Source:Texas Turfgrass Research - 1982. September 1982, p. 20-22.
Publishing Information:College Station, TX: Texas Agricultural Experiment Station.
Keywords:TIC Keywords: Stenotaphrum secundatum; Disease resistance; Cultivars; Rhizoctonia; Brown patch; Gray leaf spot; Blissus leucopterus; Downy mildew; Cold resistance; Panicum mosaic virus; Shade resistance; Blissus; Pyricularia grisea; Color retention
Abstract/Contents:The five cultivars of St. Augustinegrass (Stenotaphrum secondatum) observed were: Floratam, Floratine, Raleigh, Seville, and Texas Common. Seville showed a slow leaf extension rate while Floratam was very fast. Floratine and Texas Common was only slightly less rapid, and Raleigh was intermediate. The most low temperature hardy of the five cultivars (below 32 degrees F) were Texas Common and Raleigh. Flortatm was very poor in this category. Floratam exhibited poor shade adaptation in contrast to Texas Common and Floratine which were quite good. Although the available data is not conclusive, both Raleigh and Seville are showing promising shade adaptation. Raleigh has exhibited a very good spring greenup rate with Floratam ranking at the other end of the scale. None of the five cultivars exhibited a superior response to fall low temperature color retention. Floratam, Raleigh, and Seville all have good resistance to the SAD virus (St. Augustine Decline). Only Floratam proved to have any reasonable resistance to the chinchbug (Blissus spp.). None of the five cultivars possess any resistance to Downy mildew (Scleropthera macrospora). Out of the five Seville proved to the most suceptible. None of the five cultivars have shown superior resistance to gray leaf spot (Piricularia grisea) although, Floratam and Raleigh have proven to be more resistant than the others. None of the cultivars showed resistance to Brown patch (Rhizoctonia spp.). Although, Floratam and Seville are slightly less susceptible to certain strains of Rhizoctonia than the other three cultivars. A table details the turf, environmental adaptation, and pest resistance characteristics of the five cultivars.
PR #4043
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Beard, J. B., R. L. Toler, R. L. Crocker, and M. P. Grisham. 1982. St. Augustinegrass cultivar update. Tex Turfgrass Res. p. 20-22.
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