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History of Nut Tree Culture in North America
58th Annual Report 1967 p
6th Annual Report 1915 p 77
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acorns acre Agricultural almond alternate bearing Amer American chestnut areas Barcelona bark beech black walnut California carbohydrates Carya catkins centimeters chestnut blight Chinese chestnut climate commercial cultivars cultivated culture diameter disease eastern filbert blight European beech fertilization Figure forest fruit germination Ginkgo grafting growing season growth harvest hazelnut hickory Hort HortScience husks hybrids inches increased Japanese chestnut Juglandaceae kernel Lagerstedt leaf leaves mature moisture native pecan nitrogen North America Northern Nut Growers nursery nut crops Nut Growers Assn nut production nut trees nutrient occur orchard Oregon ovata pecan pecan trees percent Persian walnut phosphorus pine pinyon pinyon pine pistachio pistillate pistillate flowers planted pollination potassium pounds Proc propagation root rootstock scion scionwood seed seedlings selections shell shoots soil soil pH Sparks species spring susceptible Table techniques temperatures Texas tolerance tree nut tree-nut crops United USDA utilized wood yield zinc