Average nut quality of test trees.

# Nuts / lb. % Kernel Kernel quality breakdown Specific gravity Harvest Date
   % Fancy % Standard % Amber     
65 52% 34% 17% 1% .75 Oct. 17



Originally tested as USDA 42-13-0002 from a 'Clark' x 'Odom' cross, 'Cheyenne' was released by George Madden for the USDA in 1970, (Graumann, 1971).


'Cheyenne' has been a low-yielding cultivar in our test. This is partly due to the fact that 'Cheyenne' trees tend to be smaller than other cultivars, and also to the high alternate bearing intensity of the cultivar. Kernel quality in young trees is acceptable, but it declines as the trees mature. 'Cheyenne' is extremely susceptible to yellow pecan and blackmargined aphids, leading to sooty mold accumulation. 'Cheyenne' also is very susceptible to pecan scab. At one time, it was thought that 'Cheyenne' could be used in high-density orchards because of its small tree size. However, 'Cheyenne' has too many negatives to make it a profitable cultivar in the Southeast.

Production record of test trees beginning in year planted

'Cheyenne' production from the Ponder Variety Grove test. Each colored line represents the yearly production in pounds of nuts from an individual tree beginning the year planted. *Note the up and down of the alternate bearing cycle.

Alternate Bearing Intensity = 0.66