Full TGIF Record # 1014
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Author(s):Engelke, M. C.; Hickey, V. G.
Author Affiliation:Associate Professor, Turfgrass Breeding and Genetics; Research Associate, Turfgrass Breeding, The Texas Agricultural Experiment Station, Dallas, Texas
Title:Evaluation of St. Augustinegrass expervars at TAES - Dallas
Other records with the "Turfgrasses" Section
Source:Texas Turfgrass Research - 1984. 1984, p. 40-44.
# of Pages:5
Publishing Information:College Station, TX: Texas Agricultural Experiment Station.
Series:Consolidated PR 4269-4289
Keywords:TIC Keywords: Stenotaphrum secundatum; Cold resistance; Water use rate; Downy mildew; Shade; Pyricularia grisea; Expervars
Abstract/Contents:Testing is being done at Texas Agricultural Experiment Station to find improved, cold resistant St. Augustinegrass cultivars. St. Augustinegrass is second only to Bermudagrass as a widely used turfgrass in southern Texas and for this reason there is a need for cultivars which can withstand cold temperatures in North Texas. St. Augustinegrass has superior shade tolerance with a relatively high water use, but needs high cold tolerance to do well in North Texas. Researchers started St. Augustinegrass expervars in pots in greenhouses before moving them to seven foot by seven foot plots outside. Once outside, they were watered daily until establishment, and thereafter to avoid visual wilt. The expervars were fertilized four times between February and September with one pound nitrogen per 1000 square feet each time. Each plot was mowed weekly at a height of two inches. Results of testing found St. Augustinegrass expervars had rapid green-up rates after the mild 1982-83 winter. TAES #1184 (Grimms Dwarf) exibited greater growth than others in 1982 growing season. Over one half of expervars provided quality turf for 1982 and 1983. Of the expervars going into Winter 1983, seven of them were still active on October 12, 1982. Gray leaf spot ratings found 18 of the expervars to have some level of resistance. Downy Mildew infection revealed a differential response indicating genetic resistance exists in the population. Downy mildew results on expervars are important to expervar use in North Texas because of humid conditions. This test data was acquired over a two year period, and these results should be considered preliminary.
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Engelke, M. C., and V. G. Hickey. 1984. Evaluation of St. Augustinegrass expervars at TAES - Dallas. Tex Turfgrass Res. p. 40-44.
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