TABLE 12. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF ST. AUGUSTINEGRASS CULTIVARS IN THE 2023 NATIONAL ST. AUGUSTINEGRASS TEST AT DALLAS, TX 1/ 2023 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ GENETIC LEAF COLOR PERCENT ESTABLISHMENT AUGUST-DECEMBER 2023 QUALITY RATINGS NAME COLOR TEXTURE LEAF SPOT DECEMBER AUG 21 SEPT 11 SEPT 25 OCT 16 NOV 16 DEC 1 AUG SEP OCT NOV MEAN COBALT 8.3 3.0 6.0 4.3 30.0 51.7 80.0 90.0 91.7 94.3 7.3 7.3 8.0 6.3 7.3 FSA 1907 8.7 3.0 6.0 4.7 20.0 35.0 58.3 70.0 78.0 79.7 7.7 7.7 8.0 5.7 7.3 DALSA 1910 7.3 5.7 5.0 3.7 21.7 45.0 76.7 91.3 94.7 96.3 7.0 6.3 8.0 5.7 6.8 FSA 2301 8.0 4.7 5.3 4.0 28.3 55.0 85.0 94.7 94.7 96.0 6.7 6.7 8.0 5.7 6.8 XSA 11026 7.3 4.7 5.0 4.0 30.0 51.7 78.3 91.3 91.3 93.0 7.3 6.7 8.3 5.0 6.8 XSA 11027 7.7 4.7 5.0 4.0 26.7 51.7 85.0 96.3 97.7 97.7 7.0 7.0 7.7 5.7 6.8 DALSA 2301 7.3 4.3 4.7 4.7 25.0 53.3 80.0 91.3 92.7 94.3 7.0 6.0 7.7 6.0 6.7 FSA 2012 7.7 4.3 5.7 3.7 23.3 40.0 65.0 83.3 85.0 90.0 7.0 6.7 7.0 4.7 6.3 FSA 1617 6.3 5.7 3.3 3.0 16.7 45.0 70.0 88.0 86.3 93.0 6.7 6.3 7.0 4.7 6.2 FSA 2026 7.7 6.0 4.0 3.0 15.0 36.7 60.0 75.0 81.7 80.0 6.3 6.3 7.3 4.7 6.2 PALMETTO 7.0 5.3 3.7 3.7 16.7 36.7 66.7 81.7 88.0 92.7 6.7 6.0 7.0 5.0 6.2 XSA 12155 6.3 6.0 3.3 3.3 26.7 46.7 66.7 76.3 84.7 84.7 7.3 6.7 6.3 4.3 6.2 FSA 2022 8.0 6.0 3.0 2.3 18.3 35.0 63.3 83.3 90.0 91.3 6.7 6.0 7.3 4.3 6.1 DALSA 1914 7.3 5.0 6.3 4.0 16.7 43.3 71.7 88.3 93.0 97.7 6.0 5.3 7.3 5.3 6.0 FSA 2013 7.0 4.3 4.3 2.7 20.0 48.3 80.0 94.7 93.0 97.7 6.0 6.3 7.3 4.3 6.0 XSA 11513 6.3 6.0 3.3 3.0 20.0 46.7 81.7 93.0 93.0 94.7 6.7 6.3 6.7 4.0 5.9 FSA 1627 6.3 5.7 3.3 2.0 21.7 45.0 66.7 81.3 86.3 83.0 6.3 5.7 6.3 4.3 5.7 FLORATAM 6.3 4.3 3.3 3.3 20.0 50.0 85.0 93.0 96.0 97.7 5.7 5.0 6.7 4.0 5.3 RALEIGH 6.3 6.0 4.0 2.7 11.7 38.3 60.0 81.3 83.0 88.0 5.3 5.3 6.3 4.0 5.3 LSD VALUE 1.4 0.7 2.3 1.1 18.9 36.5 53.0 38.7 36.6 29.7 1.6 0.8 1.2 1.1 0.7 C.V. (%) 10.5 9.6 26.4 18.6 34.9 26.4 23.6 15.1 12.4 11.1 11.1 8.1 8.7 12.6 6.6 1/ TO DETERMINE STATISTICAL DIFFERENCES AMONG ENTRIES, SUBTRACT ONE ENTRY'S MEAN FROM ANOTHER ENTRY'S MEAN. STATISTICAL DIFFERENCES OCCUR WHEN THIS VALUE IS LARGER THAN THE CORRESPONDING LSD VALUE (LSD 0.05). 2/ C.V. (COEFFICIENT OF VARIATION) INDICATES THE PERCENT VARIATION OF THE MEAN IN EACH COLUMN. TABLE A. (2023) 2023 LOCATIONS, SITE DESCRIPTIONS AND MANAGEMENT PRACTICES IN THE 2023 NATIONAL ST. AUGUSTINEGRASS TEST SOIL SOIL SUN MOWING SOIL SOIL PHOSPHOROUS POTASSIUM NITROGEN OR HEIGHT IRRIGATION LOCATION TEXTURE PH (LBS/ACRE) (LBS/ACRE) (LBS/1000 SQ FT) SHADE (IN) PRACTICED TX1 SILTY CLAY LOAM 7.6-8.5 151-270 241-375 2.1-3.0 FULL SUN 3.6-4.0 ONLY DURING SEVERE STRESS TABLE 13. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF ST. AUGUSTINEGRASS CULTIVARS IN THE 2023 NATIONAL ST. AUGUSTINEGRASS TEST GROWN UNDER DROUGHT STRESS AT DALLAS, TX 1/ 2024 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ GENETIC LEAF FALL BROWN GRAY COLOR QUALITY RATINGS NAME COLOR TEXTURE DENSITY WINTER KILL PATCH WEAR LEAF SPOT NOVEMBER APR MAY JUN JUL OCT NOV MEAN DALSA 2301 7.7 3.3 7.3 30.0 6.3 7.7 7.0 5.3 6.7 6.3 8.3 6.3 6.3 6.6 COBALT 7.0 3.3 8.0 35.0 8.3 7.0 7.7 5.0 6.3 6.3 6.7 7.3 7.0 6.4 DALSA 1910 7.3 3.7 8.7 28.3 9.0 2.7 7.7 5.0 5.7 5.7 7.3 7.7 7.0 6.4 FSA 1907 8.3 3.3 7.7 58.3 8.7 7.0 8.0 4.0 6.3 6.3 7.7 7.3 7.0 6.4 DALSA 1914 7.0 4.0 7.0 25.0 6.0 5.7 6.3 5.0 6.3 6.0 7.0 6.3 5.3 6.0 XSA 11027 6.7 4.3 8.0 51.7 8.0 3.7 8.0 4.3 5.7 5.0 6.7 7.3 7.0 6.0 FSA 2301 6.7 4.3 7.0 18.3 8.7 3.0 7.0 5.7 5.0 4.7 7.0 6.7 6.3 5.9 XSA 11026 6.0 4.7 7.7 56.7 8.7 4.3 7.7 4.3 5.0 5.0 5.7 6.7 7.3 5.7 FSA 2026 7.3 5.7 5.7 50.0 7.7 7.7 6.0 4.0 5.3 5.7 6.7 6.3 5.3 5.6 PALMETTO 6.3 4.7 5.7 23.3 6.0 6.0 5.3 5.0 5.0 4.7 5.3 6.0 5.3 5.2 XSA 11513 5.7 5.0 6.7 56.7 8.3 7.0 7.0 3.3 4.0 4.7 6.0 6.3 7.0 5.2 FSA 1617 6.7 4.0 7.0 65.0 8.7 4.0 7.0 3.3 4.0 4.3 5.0 6.3 6.3 4.9 FSA 2012 8.0 4.0 6.7 71.7 8.0 5.0 7.0 3.3 5.3 4.3 5.3 6.0 5.3 4.9 FSA 2013 5.7 4.3 6.3 60.0 8.0 7.3 7.0 2.7 4.3 4.3 5.3 6.7 6.3 4.9 FSA 2022 7.7 5.3 6.3 66.7 8.0 7.0 6.0 3.7 4.7 4.7 5.0 6.0 5.3 4.9 FSA 1627 6.7 4.3 5.7 51.7 7.7 5.7 6.0 4.0 4.3 4.3 5.3 5.7 5.3 4.8 FLORATAM 5.3 3.7 7.3 78.3 8.7 4.7 8.0 2.3 3.7 3.3 5.3 6.7 7.0 4.7 XSA 12155 6.0 5.0 6.3 46.7 7.3 6.3 5.3 4.0 4.7 4.7 5.3 5.0 4.3 4.7 RALEIGH 6.0 4.7 4.3 23.3 3.7 4.3 4.7 4.0 4.3 4.0 5.0 4.7 3.0 4.2 LSD VALUE 0.9 0.8 1.5 27.1 2.4 1.8 1.5 1.4 1.2 1.2 1.5 1.6 2.4 1.1 C.V. (%) 8.0 11.8 12.8 33.2 16.8 20.0 12.5 19.5 14.2 14.4 14.1 12.6 20.2 11.8 1/ TO DETERMINE STATISTICAL DIFFERENCES AMONG ENTRIES, SUBTRACT ONE ENTRY'S MEAN FROM ANOTHER ENTRY'S MEAN. STATISTICAL DIFFERENCES OCCUR WHEN THIS VALUE IS LARGER THAN THE CORRESPONDING LSD VALUE (LSD 0.05). 2/ C.V. (COEFFICIENT OF VARIATION) INDICATES THE PERCENT VARIATION OF THE MEAN IN EACH COLUMN. TABLE 13. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF ST. AUGUSTINEGRASS CULTIVARS (CONT'D) IN THE 2023 NATIONAL ST. AUGUSTINEGRASS TEST GROWN UNDER DROUGHT STRESS AT DALLAS, TX 1/ 2024 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ QUALITY QUALITY QUALITY 14 DAYS INTO 26 DAYS INTO 1 MONTH SPRING SPRING SPRING SEEDHEAD RATINGS RECOVERY FROM WINTER INJURY IN 2023/2024 DRYDOWN DRYDOWN AFTER IRRIGATION GREENUP GREENUP GREENUP NAME JUNE 24 JULY 24 AUG 24 APRIL MAY JUNE JULY 8/14/24 8/26/24 9/24/24 3/27 4/15 6/12 DALSA 2301 8.7 7.7 8.7 70.0 86.3 88.0 99.0 8.3 5.3 6.3 3.7 4.3 5.7 COBALT 6.0 4.0 8.7 65.0 85.0 88.0 97.7 6.3 3.7 7.0 3.0 3.7 4.7 DALSA 1910 3.3 5.3 9.0 71.7 83.3 88.0 99.0 6.7 5.0 7.7 4.0 4.3 5.3 FSA 1907 8.0 6.3 8.7 41.7 65.0 68.3 93.0 7.0 5.0 6.7 2.3 2.3 3.7 DALSA 1914 5.7 7.3 8.3 75.0 89.7 89.7 97.7 6.3 4.3 6.0 4.0 4.7 5.7 XSA 11027 5.7 5.0 8.3 48.3 78.3 86.7 99.0 5.7 4.0 7.0 2.0 2.7 3.7 FSA 2301 6.7 6.0 8.7 81.7 93.0 96.0 99.0 6.3 3.3 6.3 3.3 4.3 6.0 XSA 11026 6.7 5.0 8.7 43.3 83.3 76.7 94.3 5.7 3.3 6.7 2.7 2.7 3.7 FSA 2026 6.7 7.0 9.0 50.0 68.3 76.7 96.3 5.3 3.3 6.3 3.0 3.7 4.3 PALMETTO 3.3 4.3 8.3 76.7 91.7 96.3 99.0 4.3 3.0 5.7 3.3 4.3 6.0 XSA 11513 3.3 4.7 8.7 43.3 65.0 79.7 99.0 5.0 3.3 6.3 2.3 3.0 3.3 FSA 1617 7.0 2.0 7.3 35.0 55.0 68.0 99.0 4.7 3.0 6.7 2.3 2.3 3.3 FSA 2012 7.7 4.7 8.3 28.3 48.3 55.0 90.0 4.3 3.3 5.7 2.3 2.3 2.7 FSA 2013 8.0 7.0 8.7 40.0 70.0 86.7 99.0 5.0 3.0 6.0 2.0 2.0 3.3 FSA 2022 8.0 6.3 9.0 33.3 56.7 65.0 96.3 4.3 2.3 5.3 2.7 2.7 3.3 FSA 1627 7.0 6.0 8.7 48.3 68.3 78.3 97.7 4.7 2.7 6.0 2.3 2.7 3.7 FLORATAM 8.0 5.0 8.3 21.7 46.7 58.3 96.3 4.7 3.3 7.0 2.0 2.0 2.3 XSA 12155 3.0 1.7 8.0 53.3 71.7 83.0 99.0 4.3 2.7 6.3 3.3 3.0 4.3 RALEIGH 2.7 3.7 9.0 76.7 90.0 93.0 99.0 4.0 2.3 4.3 3.3 4.0 5.7 LSD VALUE 2.2 1.8 1.5 27.1 25.3 28.2 5.7 1.5 1.5 2.1 0.9 0.9 1.7 C.V. (%) 22.6 21.4 7.0 29.7 19.1 17.3 2.9 16.5 23.5 14.9 18.6 18.4 22.9 1/ TO DETERMINE STATISTICAL DIFFERENCES AMONG ENTRIES, SUBTRACT ONE ENTRY'S MEAN FROM ANOTHER ENTRY'S MEAN. STATISTICAL DIFFERENCES OCCUR WHEN THIS VALUE IS LARGER THAN THE CORRESPONDING LSD VALUE (LSD 0.05). 2/ C.V. (COEFFICIENT OF VARIATION) INDICATES THE PERCENT VARIATION OF THE MEAN IN EACH COLUMN. TABLE A. 2024 LOCATIONS, SITE DESCRIPTIONS AND MANAGEMENT PRACTICES IN THE 2023 NATIONAL ST. AUGUSTINEGRASS TEST SOIL SOIL SUN MOWING SOIL SOIL PHOSPHOROUS POTASSIUM NITROGEN OR HEIGHT IRRIGATION LOCATION TEXTURE PH (LBS/ACRE) (LBS/ACRE) (LBS/1000 SQ FT) SHADE (IN) PRACTICED TX1 SILTY CLAY LOAM 7.6-8.5 151-270 241-375 2.1-3.0 FULL SUN 3.6-4.0 ONLY DURING SEVERE STRESS