2011 VIRGINIA COTTON VARIETY SUMMARY Information compiled by: Gail White & David Horton, Tidewater AREC

Virginia Cotton Production Guide –Available Information: Fertility, Tillage and Planting Suggestions 2011 Official Variety Trial results Recommendations on Plant Growth Regulator use Disease control Insect control Weed control Harvest-Aid Suggestions The 2012 Cotton Production Guide is available at your County Extension Office or call the Tidewater AREC. It is also on the web at http://www.pubs.ext.vt.edu/2810/2810-1019-11/2810-1019-11.pdf.

Percentage of Top 10 Varieties Planted in Virginia Data from USDA/AMS Cotton Program “Cotton Varieties Planted 2011 Crop”, Sep. 2011

Percentage of Cotton Acreage Planted in Southeast (Data from Florence, SC Classing Office) % Data from USDA/AMS Cotton Program “Cotton Varieties Planted 2011 Crop”, Sep. 2011

2011 Cotton OVT Trial – Lint Yield 8 7 4 5 3 10 2 9 1 * * * * * * * * Top 10 varieties planted in Virginia * Experimental variety

2011 Cotton OVT Trial - Fiber Quality of Top 10 Yielding Varieties Variety Lint Yield (lb/A) Fiber Properties Mic Len Str Uni PHY 499 WRF 900.4 5.1 1.15 32.6 82.9 DG 2570 B2RF 820.6 1.11 31.0 80.8 PHY 565 WRF 768.8 4.6 32.9 82.4 *DP 1219 B2RF 755.9 4.7 1.19 34.2 81.9 DP 1137 B2RF 755.5 5.0 1.09 29.0 81.3 ST 5288 B2F 752.4 1.13 30.5 81.7 DG 2540 B2RF 745.3 4.8 1.18 30.6 82.3 DP 1133 B2RF 713.7 32.0 83.4 DP 1028 B2RF 706.1 5.3 28.7 83.3 ST 5458 B2RF 697.7 4.9 1.12 30.8 * New release in 2012.

2 Year Average Cotton OVT Trial – Lint Yield

2 Year Average Cotton OVT Trial - Fiber Quality of Top 10 Yielding Varieties Variety Lint Yield (lb/A) Fiber Properties Mic Len Str Uni PHY 499 WRF 1089.7 8.1 1.14 32.3 83.1 DG 2570 B2RF 969.8 4.9 1.12 30.7 82.1 DP 1028 B2RF 947.7 5.2 1.13 29.0 82.4 DP 1137 B2RF 941.2 5.0 1.11 29.1 AM 1550 B2RF 935.9 5.1 1.10 28.9 81.7 PHY 565 WRF 918.7 4.7 1.15 32.6 82.7 ST 5288 B2F 902.7 29.9 81.5 DP 1034 B2RF 802.6 30.0 82.8 DP 1133 B2RF 898.7 32.0 83.6 FM 1740 B2F 897.2 30.3

3 Year Average Cotton OVT Trial – Lint Yield

3 Year Average Cotton OVT Trial - Fiber Quality of Top 10 Yielding Varieties Variety Lint Yield (lb/A) Fiber Properties Mic Len Str Uni DP 1028 B2RF 1294.7 5.0 1.14 28.8 83.2 DG 2570 B2RF 1248.7 4.9 1.13 30.3 82.4 PHY 375 WRF 1235.6 4.8 29.9 82.6 DP 0912 B2RF 1216.0 5.2 1.10 30.4 82.3 AM 1550 B2RF 1204.2 1.11 82.2 FM 1740 B2F 1202.0 30.2 82.7 PHY 367 WRF 1200.6 1.15 30.6 ST 5288 B2F 1182.7 5.1 1.12 30.0 81.8 PHY 565 WRF 1173.1 4.6 1.17 32.4 83.1 ST 5458 B2RF 1152.2 31.1

2011 County Strip Trial – Combined 6 Locations

2011 County Strip Trial – Combined Fiber Quality Variety Lint Yield (lb/A) Fiber Properties Mic Len Str Uni PHY 499 WRF 1203.6 4.8 1.10 31.4 81.8 DP 1028 B2RF 1123.9 1.11 30.1 82.7 DP 1137 B2RF 1093.2 1.09 28.6 82.1 PHY 375 WRF 1041.7 4.6 29.6 81.9 AM 1550 B2RF 1027.7 4.7 28.7 ST 5288 B2F 1006.6 1.13 29.1 LSD (p=.05) 146.17

County Strip Trial – Southampton, ML Everett (Chris Drake, Co. Agent) *2 *1 *6 *3 *4 *5 * Variety found at all 6 locations and its ranking.

County Strip Trial – Dinwiddie, Randy Everett (Mike Parrish, Co. Agent) *1 *3 *4 *5 *2 * Variety found at all 6 locations and its ranking.

County Strip Trial – Isle of Wight, Loften Braswell (Janet Spencer, Co County Strip Trial – Isle of Wight, Loften Braswell (Janet Spencer, Co. Agent) *1 *2 *3 *4 *5 *6 * Variety found at all 6 locations and its ranking.

County Strip Trial – Surry, Fulton Faison (Glenn Slade, Co. Agent) *1 *6 *4 *2 *3 *5 * Variety found at all 6 locations and its ranking.

County Strip Trial – Suffolk, Mike Griffin *3 *2 *1 *4 *5 *6 * Variety found at all 6 locations and its ranking.

County Strip Trial – Sussex, Jared Webb (Kelvin Wells, Co. Agent) *2 *5 *3 *6 *4 * Variety found at all 6 locations and its ranking.