Five experimental strains and Pima S-6 were grown in seven Regional Tests across the Pima belt in 1986. P67 averaged highest in yield below 2,500 feet, and P65 averaged highest in yield above 2,500 feet elevation. Overall, Pima S-6 yielded 5% less than P67, the top yielding strain across locations. A new monogenic recessive aberrant leaf mutant in Pima was named wrinkled leaf-2 and assigned the gene symbol wr2.

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