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Storage of Mineral Nutrients and Organic Food
Some Essential Tissues in the Tree
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abscission acid aerated soils almond amount apple fruits apple trees apricot areas auxin bark bearing become blossom branches cambium carbohydrates carbon dioxide carpel cause cells cent chilling requirement chromosomes climates compounds cover crop cut back deciduous deciduous orchard develop districts dormant pruning dwarf fertilized Figure fireblight flavor flower bud formation freezing grafting grow growers grown harvested heavy crop increase influence injury killed leaf surface leaves less McIntosh nearly Northern Spy nutrients orchard orchard species ovules parthenocarpic peach peach trees pear percentage phosphorus photosynthesis pistillate plants pollen poorly aerated potassium protoplasm pruned tree Prunus reduce resistance to cold respiration rest period ripening rootstock Salicina plum scion seed seedlings shoot growth sometimes spraying spring starch stone fruits storage substances sugar sulphate summer sweet cherry symptoms temperature tend thinning tissue trunk unpruned trees usually walnut Winesap winter wood young fruits young trees zinc sulphate