Management of Micronaire Values In Upland Cotton by Defoliation Timing In Three Mid-Full Season Cultivars

The objective of this study is to manage micronaire in three mid-full season cotton varieties; Delta Pine 1050 B2RF, Phytogen 565 WRF, and Stoneville 5458 B2RF by applying harvest aids at different open boll percentages. The purpose is to find the optimum time of defoliation to keep micronaire values in the non-discount range without sacrificing yield for each of the selected varieties.