The number of apples produced by apple trees varies depending on the species — small varieties, such as the dwarf apple, may produce 3 to 6 bushels of fruit, while larger varieties may yield 6 to 10 bushels in a growing season. The quality of tree care and environmental conditions can significantly influence apple production. Temperature extremes and infestation can delay or prevent fruit production, and the availability of water, sunlight and nutrients affects performance as well.
Apple trees are best suited for growth in temperate climates, although they are relatively hardy and can withstand short-term fluctuations in temperature and other adverse environmental conditions, such as droughts and even minor floods. Apple trees, like other trees that bear fruit, will concentrate their energy on staying alive when times are tough. Consequently, they will cease fruit production when faced with environmental hardships, which affect the volume produced in the season. Generally, the larger species (semidwarfs) produce the largest fruits and the highest volumes of produce. Many species grown for commercial production are of the larger varieties: these trees yield up to 10 bushels of apples in a given season. A bushel weighs approximately 42 pounds and may contain dozens of apples, depending on the size of the fruits.