ABSTRACT

The University of Arkansas has implemented side-by-side comparisons of Bollgard cotton varieties to non-Bt varieties each year since 1996.Partial budgeting was used to quantify the change in profit associated with growing the stacked gene variety rather than the single gene or conventional variety. For seventeen observations in Southeast Arkansas profit decreased $56.80 per acre on average. For five observations in Northeast Arkansas profit decreased $65.42 per acre on average.