The objective of this project was to evaluate preliminary and advanced breeding selections from the Narrabri and Biloela programs at up to five locations in Queensland. Over the period 1986/87 to 1988/89 this project played a vital role in selecting new cotton varieties for commercial production. Hundreds of lines from the Biloela and Narrabri breeding programs were evaluated in preliminary trials at Emerald, Biloela and Brookstead, while advanced material was tested in the Australian Cotton Cultivar Trials at these sites plus Theodore.