Annual Report, Volume 60, Parts 1969-1973

acre American chestnut Annual Meeting bark Betulaceae black walnut blight resistance Botan breeding catkins chestnut trees Chinese chestnut clones colurna commercial Committee Corwin Davis Corylus avellana cracking crop cultivars developed Elmer Myers Experiment Station farm feet fertilizer FIGURE filbert flowers Forest fruit George germination grafting grove growing grown growth hardy harvest hazel heartnut hickory Hort Horticulture hybrids Illinois inches Iowa Jaynes John Juglans Juglans regia kernels leaf McDaniel method Michigan NNGA North Northern Nut Growers nurse-nut nursery Nut Growers Association nut trees nutrients Ohio Ontario orchard Oregon P.O. Box pecan Persian walnut persimmon planted pollen potassium produce propagation pruning regia Report Road Robert root rootstock Route scion scion wood season seed seedlings selection shagbark shell Simazine soil species spring storage Street temperature varieties walnut trees weed control William