Six major parameters were chosen as important variables: pollination type (Type I protandrous = pollen shedding occurs prior to stigma receptivity; Type II protogynous = stigma receptivity occurs prior to pollen shedding); yield; nut size; percentage kernel; resistance to scab and other leaf diseases (downy spot, zonate leaf spot, brown spot, leaf spot, liver spot, powdery mildew, etc.); and preco