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Annona glabra is a tropical fruit tree in the family Annonaceae, in the same genus as the soursop and cherimoya.Common names include pond apple, alligator apple (so called because American alligators often eat the fruit), swamp apple, corkwood, bobwood, and monkey apple. [2]
Antonovka apples. Antonovka is a cultivar of vernacular selection, which began to spread from the region of Kursk in Russia during the 19th century. [4] While the fruit-bearing trees have not received a wide degree of recognition outside the former Soviet Union, many nurseries do use Antonovka rootstocks, since they impart a degree of winter-hardiness to the grafted varieties.
For commercial purposes, including botanical evaluation, apple cultivars are propagated by clonal grafting onto rootstocks. Apple trees grown without rootstocks tend to be larger and much slower to fruit after planting. Rootstocks are used to control the speed of growth and the size of the resulting tree, allowing for easier harvesting.
The tree is resistant to apple scab and mildew and does best when grown as a standard in somewhat heavy clay soil. [2] It is a heavy and regular bearer; the apple, nicknamed the "King of Covent Garden", is the only British cooking apple produced all year round. [3] As a triploid, the tree has sterile pollen.
Stalk 10 mm (0.39 in). Extremely tolerant of cold weather, and because it produces a single, deep taproot (unusual among apple trees), Antonovka is propagated for use as a rootstock. Antonovka rootstock provides a cold-hardy (to −45 °C (−49 °F)), well-anchored, vigorous, standard-sized tree. C 15. Cooking, cider PickE early September.
Annona squamosa is a small, well-branched tree or shrub [7] from the family Annonaceae that bears edible fruits called sugar apples or sweetsops. [8] It tolerates a tropical lowland climate better than its relatives Annona reticulata and Annona cherimola [6] (whose fruits often share the same name) [3] helping make it the most widely cultivated of these species. [9]
Its fruit is the largest of any species of Malus except domestica, up to 7 cm in diameter, equal in size to many modern apple cultivars. Unlike domesticated varieties, its leaves go red in autumn: 62% of the trees in the wild do this compared to only 2.8% of the regular apple plant or the 2,170 English cultivated varieties. [6]
The slender leaves are hairless, straight and pointed at the apex (in some varieties wrinkled), 10–20 cm (4–8 in) long and 2–7 cm (1–3 in) wide. [ 8 ] [ 9 ] The yellow-green flowers are generally in clusters of three or four 2–3 cm ( 3 ⁄ 4 – 1 + 1 ⁄ 4 in) diameter, with three long outer petals and three very small inner ones.