Evaluation of Water Use Efficiency, Yield Stability and Fiber Quality in Cotton Varieties.

Cotton variety selection can be challenging due to increased technology options, water availability and location.  The objective of this study is to observe yield stability, fiber quality and water use efficiency among the Monsanto class of 2009 cotton varieties.  In addition, profit maximization will be determined based upon economic analysis.  Studies were initiated at Texas Tech University farms in Lubbock and New Deal, Texas.  Thirteen subsurface drip irrigation (SDI) zones (~0.50 ac each) were utilized for each study.  Irrigation treatments ranged from 0 to 0.24” maximum per day.  Measurements consist of nodes above white flower (NAWF), final plant height and nodes, final plant stand, yield and quality.  Results from this study will provide information to aid and advise producers on cotton variety selection.  It will also provide valuable information for proper irrigation management and maximize profit.