The overall aim of the project is to examine the response of cotton to Pix (mepiquat chloride) under different growth rates in the Macquarie Valley. The plan is to target a variety of cotton crops over two to three seasons that have dissimilar growth rates and fruit retention. The work will evaluate whether research completed at Myall Vale Research Station (near Narrabri), is pertinent to the shorter season growing conditions of the Macquarie Valley or otherwise.