The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers.

The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers. / Effects of 5 rates of PREP and 2 application dates of PIX were evaluated on long staple (S-6) and short staple (DP 90) cotton. Generally, crop maturity increased linearly with increasing rates of PREP. Some yield trends were seen with PREP applications. Timing of PIX application is important. Too early applications shorten plants but may slightly decrease yields; too late applications have very little effect.

The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers. / The experimental plant regulator XE-1019, a product of Chevron Chemical Company, was applied to short staple cotton at the University of Arizona Marana Agricultural Center in 1985. Plant height was modified by the chemical due to greatly shortened internode length. The 1.0 lb. a.i. XE-1019 per acre rate applied before bloom yielded significantly less than the other treatments at final harvest. Data collected from eight harvests through the season from sub-plots resulted in significant yield differences from the second through the sixth harvest dates.

A field trial was conducted to study the elements of application timing and herbicide compatibility in the use of Burst, a plant growth regulator, and the effects of these two factors on yield of upland cotton. Eight treatments combined the two factors of timing and tank mix. The results showed no significant difference in yield between treatments.