During periods of moisture stress, full rates of Pix plant growth regulator have caused excessive reductions in plant height to the point of reducing yields. The use of multiple applications of lower rates of Pix permits regulation of plant height with the option to stop applications when conditions do not favor additional growth. Four rates of Pix were used in sequential treatments to observe effects on boll set and fiber quality. DPL 50 cotton responded to the 1 oz rate with an additional 100 lbs of lint. This variety also responded to increasing rates of Pix with increasing fiber strength. A substantial number of additional bolls occurred at the first and second fruiting positions on the lower 5 fruiting branches.