Above normal temperatures and limited moisture during the season were the primary weather features in both years of testing. These weather patterns resulted in relatively small difference in average plant height between treated and non-treated plants. Lint yields were not significantly different between PIX-treated plants and the untreated control except at sites receiving late summer rainfall. Additional late season moisture resulted in significantly higher yield in untreated plants. When moisture was adequate throughout the season PIX-treated cultivars produced significantly higher yield than the untreated control. Fiber analyses indicated no difference in fiber properties among the treatments.

Pix contribution to earliness is shown by a higher boll count at the first position on fruiting branches 1 through 5. Higher open boll percent observed in PIX-treated plants in both years provides further evidence that PIX enhances earliness. Increased earliness has improved harvest preparation. Field observations reveal that PIX-treated plants are preconditioned to responded better to harvest-aid treatment resulting in improved defoliation and reduced regrowth.

Test results indicates that a total treatment rate of 8 ozs./A applied as a single treatment or as multiple applications is sufficient for normal cotton production in the Central Texas region. Multiple treatments can be tank-mixed with boll weevil insecticides. This procedure allows flexibility in terminating application when seasonal moisture becomes limiting.