2014 Cotton Varietal Growth Habit Descriptions Based on Company Literature Company/Variety Growth Habit Description Potential Growth Aggressiveness* All-Tex Nitro B2RF Apex B2RF Epic RF Medium-Tall Medium-Tall Medium-Tall least aggressive AT moderately aggressive AT most aggressive AT - needs PGR management early Dow Agrosciences PhytoGen PHY 222 WRF PHY 339 WRF PHY 367 WRF PHY 375 WRF PHY 495 W3RF PHY 499 WRF Short Tall Medium Medium-Tall Tall Tall likely minimal PGR requirement needs PGR management early less aggressive PHY moderately aggressive PHY needs PGR management early most aggressive PHY - needs PGR management early Deltapine DP 0912 B2RF DP 0935 B2RF DP 1032 B2RF DP 1044 B2RF DP 1212 B2RF DP 1219 B2RF DP 1321 B2RF DP 1359 B2RF DP 1410 B2RF Medium Medium Medium-Tall Medium-Tall Medium to Medium-Short Tall Medium-Tall Tall Medium needs PGR management needs PGR management early needs PGR management needs PGR management, but more responsive to PGR minimal PGR requirement needs aggressive PGR management early (5-7 oz MHS, more 10 days later, more 10 days later) needs PGR management, but more responsive to PGR needs aggressive PGR management early (5-7 oz MHS, more 10 days later, more 10 days later) needs PGR management Americot/NexGen NexGen 1511 B2RF Medium-Tall most aggressive AM/NG - needs PGR management early Bayer CropScience FiberMax FM 1740 B2F FM 1830 GLT FM 2334 GLT FM 2484 B2F FM 1944 GLB2 Medium/Slightly Bushy Medium/Moderate Medium/Moderate Medium/Moderate Medium/Moderate Stance PGR Suggestions for High Fertility and Moisture Oz/acre (maximum) at MHS/10-14 days later/10-14 days later 3/3/3 or 3/4/3 3/3/3 3/3/3 3/3/3 3/3/3 or 3/4/3 Stoneville ST 4946 GLB2 ST 5458 B2F Medium/Moderate Medium-Tall/Moderate 3/3/3 3/3/3 or 3/4/4 *Aggressiveness is subjective and may change based on local conditions. Low early season fruit retention and high N fertility coupled with high moisture availability will usually result in larger plants. Dr. Randy Boman OSU Southwest Research and Extension Center, Altus
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