TABLE 8B. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF OVERSEEDING GRASSES IN THE 1999 USGA/GCSAA/NTEP ON-SITE OVERSEEDING OF BERMUDAGRASS FAIRWAY TEST AT GARLAND (DALLAS), TX (FIRE WHEEL GOLF PARK) 1/ 2000-01 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ WINTER PERCENT COVER OF PERCENT COVER OF LIVING GRASSES IN FALL TRANSITION PERIOD IN 2000 DORMANCY LIVING BERMUDA OVERSEED BERMUDA OVERSEED BERMUDA OVERSEED BERMUDA OVERSEED BERMUDA OVERSEED BERMUDA OVERSEED GRASS GRASS GRASS GRASS GRASS GRASS GRASS GRASS GRASS GRASS GRASS GRASS NAME 10/12 10/12 10/23 10/23 11/6 11/6 11/20 11/20 12/19 12/19 1/22/01 1/22/01 CHARGER II 56.7 43.3 40.0 60.0 36.7 63.3 23.3 76.7 16.7 83.3 20.0 80.0 TRANSIST 46.7 53.3 53.3 46.7 33.3 66.7 26.7 73.3 26.7 73.3 20.0 80.0 CITATION III 56.7 43.3 40.0 60.0 36.7 63.3 26.7 73.3 23.3 76.7 20.0 80.0 PARAGON 36.7 63.3 40.0 60.0 36.7 63.3 30.0 70.0 23.3 76.7 33.3 66.7 BARLENNIUM 53.3 46.7 43.3 56.7 40.0 60.0 26.7 73.3 30.0 70.0 26.7 73.3 ESSENCE 33.3 66.7 43.3 56.7 43.3 56.7 23.3 76.7 26.7 73.3 23.3 76.7 MARVELGREEN + LASER 40.0 60.0 36.7 63.3 46.7 53.3 30.0 70.0 23.3 76.7 13.3 86.7 TOURSTAR 23.3 73.3 36.7 63.3 43.3 56.7 30.0 70.0 23.3 76.7 20.0 80.0 ABT-99-3.268 33.3 66.7 36.7 63.3 40.0 60.0 33.3 66.7 26.7 73.3 33.3 66.7 BRIGHTSTAR II + WINTERPLAY 56.7 43.3 46.7 53.3 40.0 60.0 30.0 70.0 23.3 76.7 16.7 83.3 CITATION III + WINTERSTAR 46.7 53.3 40.0 60.0 43.3 56.7 30.0 70.0 26.7 73.3 20.0 80.0 FIESTA 3 43.3 56.7 40.0 60.0 43.3 56.7 30.0 70.0 23.3 76.7 20.0 80.0 LEADERBOARD 33.3 66.7 30.0 70.0 50.0 50.0 33.3 66.7 26.7 73.3 26.7 73.3 MED-007 36.7 63.3 33.3 66.7 46.7 53.3 30.0 70.0 23.3 76.7 30.0 70.0 MOUNTAIN VIEW 1 36.7 63.3 46.7 53.3 40.0 60.0 26.7 73.3 26.7 73.3 20.0 80.0 ALLSPORT 50.0 50.0 46.7 53.3 46.7 53.3 26.7 73.3 26.7 73.3 23.3 76.7 BRIGHTSTAR II 53.3 46.7 43.3 56.7 36.7 63.3 26.7 73.3 23.3 76.7 20.0 80.0 CAPRI 43.3 56.7 40.0 60.0 43.3 56.7 36.7 63.3 30.0 70.0 23.3 76.7 ELFKIN 56.7 43.3 50.0 50.0 36.7 63.3 26.7 73.3 26.7 73.3 23.3 76.7 FUTURA 2500 36.7 63.3 36.7 63.3 46.7 53.3 33.3 66.7 23.3 76.7 20.0 80.0 LS-DE1 46.7 53.3 43.3 56.7 43.3 56.7 33.3 66.7 30.0 70.0 33.3 66.7 MOUNTAIN VIEW 3 43.3 56.7 50.0 50.0 40.0 60.0 33.3 66.7 26.7 73.3 30.0 70.0 PIROUETTE 56.7 43.3 50.0 50.0 40.0 60.0 30.0 70.0 30.0 70.0 36.7 63.3 PROFESSIONAL'S SELECT 56.7 43.3 43.3 56.7 40.0 60.0 30.0 70.0 23.3 76.7 16.7 83.3 PST-3BK-99 56.7 43.3 46.7 53.3 36.7 63.3 30.0 70.0 26.7 73.3 16.7 83.3 TOP HAT 50.0 50.0 40.0 60.0 43.3 56.7 33.3 66.7 20.0 80.0 23.3 76.7 MARVELGREEN SUPREME 46.7 53.3 40.0 60.0 40.0 60.0 33.3 66.7 23.3 76.7 23.3 76.7 PICK HR A-97 50.0 50.0 36.7 63.3 36.7 63.3 26.7 73.3 26.7 73.3 26.7 73.3 BARIVIERA 56.7 43.3 56.7 43.3 36.7 63.3 30.0 70.0 36.7 63.3 33.3 66.7 CHARGER 40.0 60.0 43.3 56.7 43.3 56.7 33.3 66.7 26.7 73.3 26.7 73.3 MOUNTAIN VIEW 2 60.0 40.0 60.0 40.0 40.0 60.0 30.0 70.0 30.0 70.0 26.7 73.3 PHANTOM 40.0 60.0 40.0 60.0 46.7 53.3 40.0 60.0 30.0 70.0 23.3 76.7 PRIME 46.7 53.3 50.0 50.0 43.3 56.7 33.3 66.7 26.7 73.3 33.3 66.7 SEVILLE II 56.7 43.3 40.0 60.0 43.3 56.7 33.3 66.7 36.7 63.3 30.0 70.0 PROAM 83.3 16.7 60.0 40.0 43.3 56.7 36.7 63.3 30.0 70.0 33.3 66.7 FIRST CUT 63.3 36.7 53.3 46.7 46.7 53.3 33.3 66.7 30.0 70.0 23.3 76.7 MP111 63.3 36.7 50.0 50.0 40.0 60.0 33.3 66.7 30.0 70.0 30.0 70.0 MP58 60.0 40.0 43.3 56.7 50.0 50.0 40.0 60.0 43.3 56.7 43.3 56.7 SABRE 66.7 33.3 56.7 43.3 40.0 60.0 33.3 66.7 23.3 76.7 23.3 76.7 SNOWBIRD 50.0 50.0 53.3 46.7 50.0 50.0 40.0 60.0 33.3 66.7 23.3 76.7 CEBECO BLEND 1 60.0 40.0 43.3 56.7 53.3 46.7 40.0 60.0 30.0 70.0 36.7 63.3 WINTERPLAY 60.0 40.0 53.3 46.7 46.7 53.3 36.7 63.3 30.0 70.0 36.7 63.3 LSD VALUE 37.0 37.3 33.3 33.3 19.1 19.1 22.3 22.3 20.6 20.6 21.1 21.1 C.V. (%) 31.0 30.5 24.9 20.1 16.0 11.7 22.1 10.2 26.3 9.8 34.7 12.1 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 8B. (CONT'D) MEAN TURFGRASS QUALITY AND OTHER RATINGS OF OVERSEEDING GRASSES IN THE 1999 USGA/GCSAA/NTEP ON-SITE OVERSEEDING OF BERMUDAGRASS FAIRWAY TEST AT GARLAND (DALLAS), TX (FIRE WHEEL GOLF PARK) 1/ 2000-01 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT COVER OF LIVING GRASSES IN SPRING/SUMMER TRANSITION PERIOD IN 2001 BERMUDA OVERSEED BERMUDA OVERSEED BERMUDA OVERSEED BERMUDA OVERSEED BERMUDA OVERSEED BERMUDA OVERSEED BERMUDA OVERSEED GRASS GRASS GRASS GRASS GRASS GRASS GRASS GRASS GRASS GRASS GRASS GRASS GRASS GRASS NAME 2/19 2/19 3/19 3/19 4/17 4/17 5/2 5/2 5/22 5/22 6/29 6/29 7/25 7/25 CHARGER II 23.3 76.7 20.0 80.0 80.0 20.0 76.7 23.3 73.3 26.7 73.3 26.7 99.0 1.0 TRANSIST 16.7 83.3 16.7 83.3 80.0 20.0 90.0 10.0 83.3 16.7 86.7 13.3 99.0 1.0 CITATION III 20.0 80.0 23.3 76.7 70.0 30.0 70.0 30.0 76.7 23.3 63.3 36.7 92.7 7.3 PARAGON 30.0 70.0 20.0 80.0 80.0 20.0 70.0 30.0 80.0 20.0 73.3 26.7 99.0 1.0 BARLENNIUM 23.3 76.7 20.0 80.0 73.3 26.7 80.0 20.0 80.0 20.0 76.7 23.3 96.0 4.0 ESSENCE 20.0 80.0 23.3 76.7 73.3 26.7 70.0 30.0 76.7 23.3 83.3 16.7 99.0 1.0 MARVELGREEN + LASER 26.7 73.3 26.7 73.3 70.0 30.0 76.7 23.3 76.7 23.3 76.7 23.3 99.0 1.0 TOURSTAR 26.7 73.3 26.7 73.3 70.0 30.0 66.7 33.3 76.7 23.3 83.3 16.7 99.0 1.0 ABT-99-3.268 16.7 83.3 20.0 80.0 60.0 40.0 76.7 23.3 76.7 23.3 73.3 26.7 99.0 1.0 BRIGHTSTAR II + WINTERPLAY 23.3 76.7 20.0 80.0 73.3 26.7 70.0 30.0 73.3 26.7 66.7 33.3 99.0 1.0 CITATION III + WINTERSTAR 20.0 80.0 23.3 76.7 60.0 40.0 70.0 30.0 76.7 23.3 80.0 20.0 99.0 1.0 FIESTA 3 20.0 80.0 16.7 83.3 73.3 26.7 60.0 40.0 76.7 23.3 60.0 40.0 96.0 4.0 LEADERBOARD 23.3 76.7 20.0 80.0 60.0 40.0 76.7 23.3 80.0 20.0 83.3 16.7 99.0 1.0 MED-007 20.0 80.0 16.7 83.3 70.0 30.0 66.7 33.3 76.7 23.3 66.7 33.3 99.0 1.0 MOUNTAIN VIEW 1 23.3 76.7 30.0 70.0 66.7 33.3 76.7 23.3 76.7 23.3 80.0 20.0 99.0 1.0 ALLSPORT 20.0 80.0 23.3 76.7 76.7 23.3 70.0 30.0 76.7 23.3 73.3 26.7 99.0 1.0 BRIGHTSTAR II 23.3 76.7 20.0 80.0 73.3 26.7 80.0 20.0 76.7 23.3 73.3 26.7 99.0 1.0 CAPRI 26.7 73.3 26.7 73.3 83.3 16.7 80.0 20.0 80.0 20.0 76.7 23.3 96.0 4.0 ELFKIN 23.3 76.7 23.3 76.7 73.3 26.7 80.0 20.0 76.7 23.3 70.0 30.0 96.0 4.0 FUTURA 2500 23.3 76.7 26.7 73.3 76.7 23.3 76.7 23.3 80.0 20.0 66.7 33.3 99.0 1.0 LS-DE1 30.0 70.0 33.3 66.7 73.3 26.7 83.3 16.7 76.7 23.3 86.7 13.3 99.0 1.0 MOUNTAIN VIEW 3 30.0 70.0 46.7 53.3 66.7 33.3 76.7 23.3 76.7 23.3 80.0 20.0 99.0 1.0 PIROUETTE 23.3 76.7 23.3 76.7 76.7 23.3 80.0 20.0 80.0 20.0 73.3 26.7 99.0 1.0 PROFESSIONAL'S SELECT 23.3 76.7 20.0 80.0 76.7 23.3 80.0 20.0 76.7 23.3 70.0 30.0 96.0 4.0 PST-3BK-99 23.3 76.7 26.7 73.3 76.7 23.3 73.3 26.7 80.0 20.0 73.3 26.7 96.0 4.0 TOP HAT 23.3 76.7 23.3 76.7 76.7 23.3 80.0 20.0 80.0 20.0 76.7 23.3 96.0 4.0 MARVELGREEN SUPREME 16.7 83.3 20.0 80.0 63.3 36.7 70.0 30.0 73.3 26.7 50.0 50.0 92.7 7.3 PICK HR A-97 16.7 83.3 16.7 83.3 73.3 26.7 73.3 26.7 73.3 26.7 66.7 33.3 96.0 4.0 BARIVIERA 26.7 73.3 40.0 60.0 56.7 43.3 80.0 20.0 83.3 16.7 83.3 16.7 99.0 1.0 CHARGER 20.0 80.0 26.7 73.3 73.3 26.7 83.3 16.7 76.7 23.3 70.0 30.0 99.0 1.0 MOUNTAIN VIEW 2 26.7 73.3 26.7 73.3 70.0 30.0 70.0 30.0 80.0 20.0 76.7 23.3 92.7 7.3 PHANTOM 26.7 73.3 26.7 73.3 60.0 40.0 76.7 23.3 80.0 20.0 76.7 23.3 99.0 1.0 PRIME 23.3 76.7 30.0 70.0 56.7 43.3 73.3 26.7 76.7 23.3 70.0 30.0 99.0 1.0 SEVILLE II 23.3 76.7 23.3 76.7 73.3 26.7 76.7 23.3 76.7 23.3 73.3 26.7 96.0 4.0 PROAM 30.0 70.0 36.7 63.3 70.0 30.0 66.7 33.3 76.7 23.3 73.3 26.7 99.0 1.0 FIRST CUT 26.7 73.3 40.0 60.0 50.0 50.0 80.0 20.0 73.3 26.7 80.0 20.0 99.0 1.0 MP111 26.7 73.3 40.0 60.0 53.3 46.7 66.7 33.3 76.7 23.3 70.0 30.0 96.0 4.0 MP58 26.7 73.3 36.7 63.3 53.3 46.7 66.7 33.3 73.3 26.7 80.0 20.0 99.0 1.0 SABRE 16.7 83.3 33.3 66.7 46.7 53.3 56.7 43.3 70.0 30.0 76.7 23.3 96.0 4.0 SNOWBIRD 30.0 70.0 46.7 53.3 46.7 53.3 73.3 26.7 76.7 23.3 83.3 16.7 99.0 1.0 CEBECO BLEND 1 30.0 70.0 33.3 66.7 63.3 36.7 70.0 30.0 73.3 26.7 83.3 16.7 99.0 1.0 WINTERPLAY 30.0 70.0 40.0 60.0 56.7 43.3 73.3 26.7 76.7 23.3 73.3 26.7 96.0 4.0 LSD VALUE 13.4 13.4 20.7 20.7 34.0 34.0 25.4 25.4 26.5 26.5 26.2 26.2 15.1 15.1 C.V. (%) 23.5 7.3 36.8 13.6 19.7 42.0 12.7 36.5 7.7 25.9 13.9 40.8 3.8 162.8 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 8B. (CONT'D) MEAN TURFGRASS QUALITY AND OTHER RATINGS OF OVERSEEDING GRASSES IN THE 1999 USGA/GCSAA/NTEP ON-SITE OVERSEEDING OF BERMUDAGRASS FAIRWAY TEST AT GARLAND (DALLAS), TX (FIRE WHEEL GOLF PARK) 1/ 2000-01 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT GENETIC WINTER WINTER EARLY COLOR COLOR FALL QUALITY IN 2000 QUALITY QUALITY RATINGS IN SPRING/SUMMER TRANSITION PERIOD (2001) QUALITY NAME ESTABLISHED 4/27/01 1/22/01 11/6 11/20 12/19 1/22/01 2/19 3/19 4/17 5/2 5/22 6/29 7/25 MEAN CHARGER II 38.3 8.0 6.7 5.0 6.0 6.7 6.7 7.0 7.0 8.0 7.0 6.3 6.3 6.7 6.6 TRANSIST 36.7 7.7 5.7 5.0 5.3 6.3 6.3 7.7 6.7 8.0 7.0 7.0 6.7 6.3 6.6 CITATION III 31.7 7.7 6.3 5.0 5.7 6.3 7.0 7.0 7.0 7.7 7.0 6.3 5.3 7.0 6.5 PARAGON 35.0 7.3 6.7 5.0 6.0 6.3 6.0 7.0 7.0 8.0 6.0 6.7 5.7 7.3 6.5 BARLENNIUM 35.0 7.7 6.0 4.7 5.7 6.0 6.7 7.3 7.0 7.3 7.3 6.0 6.0 6.3 6.4 ESSENCE 36.7 7.7 6.3 4.7 6.0 6.0 6.3 7.3 6.7 7.7 7.0 6.0 6.0 6.7 6.4 MARVELGREEN + LASER 36.7 7.0 6.3 4.3 6.0 6.3 6.3 7.0 6.3 7.0 7.0 6.3 6.7 7.0 6.4 TOURSTAR 40.0 7.0 6.0 4.7 5.3 6.3 6.3 6.7 7.0 7.3 6.7 6.3 6.7 6.7 6.4 ABT-99-3.268 36.7 7.3 6.0 4.7 5.3 6.3 6.3 7.7 6.7 7.0 7.0 6.7 5.3 6.7 6.3 BRIGHTSTAR II + WINTERPLAY 28.3 7.7 7.0 5.0 5.7 6.3 6.3 7.0 6.7 7.3 6.3 5.3 6.0 7.3 6.3 CITATION III + WINTERSTAR 31.7 7.7 6.3 5.3 5.7 6.0 6.0 7.0 7.0 7.3 6.3 6.3 5.3 6.7 6.3 FIESTA 3 36.7 7.7 7.0 4.7 5.7 6.7 6.0 7.7 7.3 7.7 6.3 5.7 4.7 6.7 6.3 LEADERBOARD 33.3 7.0 6.0 4.7 5.3 6.0 6.3 7.0 7.0 7.0 6.3 6.3 6.3 7.3 6.3 MED-007 30.0 7.3 6.7 4.7 6.0 6.3 6.0 7.0 7.3 7.7 6.7 6.0 5.7 6.0 6.3 MOUNTAIN VIEW 1 41.7 7.7 6.0 5.0 5.3 6.3 6.3 7.0 6.7 7.0 6.7 6.0 6.0 7.0 6.3 ALLSPORT 30.0 7.7 6.3 4.3 5.0 6.3 6.3 7.0 6.7 7.0 6.7 6.3 6.3 6.7 6.2 BRIGHTSTAR II 33.3 7.3 6.0 5.0 5.7 6.3 6.3 6.7 6.7 7.3 7.0 6.0 5.0 6.3 6.2 CAPRI 33.3 7.3 6.7 4.3 5.3 6.0 6.0 6.3 6.3 7.7 6.3 6.7 6.3 6.7 6.2 ELFKIN 31.7 7.3 6.7 4.7 5.7 6.3 6.0 7.0 6.7 7.3 6.7 6.0 5.0 6.3 6.2 FUTURA 2500 30.0 7.3 6.3 4.7 5.3 6.0 6.0 6.7 6.3 8.0 6.7 6.3 5.7 6.3 6.2 LS-DE1 30.0 7.7 5.7 4.7 5.3 6.0 6.0 6.3 6.3 7.3 7.0 6.0 6.3 7.0 6.2 MOUNTAIN VIEW 3 31.7 7.0 5.7 5.0 5.3 6.0 6.0 6.7 5.7 6.7 6.3 6.7 7.0 7.3 6.2 PIROUETTE 28.3 8.0 6.0 4.3 5.0 6.0 5.7 6.7 6.3 8.0 7.0 6.3 6.0 7.0 6.2 PROFESSIONAL'S SELECT 40.0 8.0 6.3 4.7 5.3 6.3 6.3 6.7 6.0 7.7 7.3 6.7 5.0 6.0 6.2 PST-3BK-99 31.7 7.0 6.7 5.0 5.3 6.0 6.3 7.0 6.3 6.7 6.7 5.7 6.0 7.3 6.2 TOP HAT 25.0 7.7 6.7 4.7 5.7 6.0 5.7 7.0 6.7 7.7 7.0 6.3 5.0 6.3 6.2 MARVELGREEN SUPREME 35.0 7.3 7.0 4.3 5.7 6.3 6.3 7.3 7.0 7.3 7.0 5.0 4.7 6.0 6.1 PICK HR A-97 33.3 7.7 6.0 4.7 5.7 6.3 6.3 7.3 6.3 8.0 6.7 5.7 4.3 6.0 6.1 BARIVIERA 33.3 7.3 5.0 5.0 5.3 5.3 6.0 6.7 5.3 6.7 5.7 6.3 6.0 7.3 6.0 CHARGER 40.0 7.7 6.0 4.3 5.0 6.0 6.0 7.0 6.0 7.3 6.7 6.0 5.3 6.7 6.0 MOUNTAIN VIEW 2 31.7 7.7 6.3 4.3 5.3 6.3 6.3 6.3 6.7 7.0 6.3 6.0 5.3 6.3 6.0 PHANTOM 35.0 7.3 7.0 4.0 5.0 6.0 6.0 6.3 6.3 7.0 6.0 6.0 6.3 7.0 6.0 PRIME 31.7 7.3 6.0 4.3 5.3 6.3 6.0 7.0 6.0 7.0 6.7 5.3 5.7 6.7 6.0 SEVILLE II 35.0 7.3 6.3 4.7 5.3 5.7 6.3 7.3 6.3 7.3 6.7 6.0 5.0 5.7 6.0 PROAM 35.0 7.3 5.3 4.3 5.0 5.7 5.7 6.3 5.7 7.3 6.3 5.7 6.0 6.7 5.9 FIRST CUT 30.0 7.3 5.7 4.0 5.0 5.7 6.7 6.7 5.0 6.7 6.0 5.3 6.0 6.3 5.8 MP111 28.3 7.3 5.3 4.7 4.7 6.0 5.7 6.7 6.0 6.0 6.3 5.7 5.3 6.7 5.8 MP58 33.3 7.3 5.7 4.7 4.7 5.0 5.3 6.3 6.0 7.0 6.0 5.7 6.0 6.7 5.8 SABRE 36.7 7.0 6.0 4.3 5.0 6.7 6.3 7.3 5.7 6.7 5.7 5.3 5.0 6.0 5.8 SNOWBIRD 36.7 7.0 5.7 4.3 5.0 5.7 6.0 6.3 5.7 6.3 5.3 5.7 6.3 7.0 5.8 CEBECO BLEND 1 33.3 7.3 6.0 4.0 4.7 5.7 5.3 6.7 6.0 7.0 5.7 5.7 5.7 6.7 5.7 WINTERPLAY 31.7 7.0 6.0 4.0 4.3 5.7 5.7 6.3 5.3 6.7 6.0 6.3 5.3 7.0 5.7 LSD VALUE 25.4 1.9 1.1 1.5 1.6 2.0 1.6 2.3 1.6 2.8 1.5 3.1 4.8 4.3 1.1 C.V. (%) 19.8 7.0 9.2 10.9 11.0 9.6 8.7 9.6 11.2 11.3 9.7 13.6 21.0 14.2 6.0 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.