ABSTRACT

The objective of this experiment was to compare the effects of Mepiquat Chloride (MC), Pix Plus (MC and the bacteria Bacillus cereus), and Pentia (mepiquat pentaborate) on a specific cotton (Gossypium hirsutum L.) variety - Delta and Pine Land 555 BG/RR (DP 555 BG/RR )- for growth, earliness and yield. Compared with the untreated control, each of the plant growth regulators reduced plant height. Pentia and Pix Plus reached 60% open boll stage earlier and had numerically higher yields compared to the MC treatment or the untreated control.