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Young tree in natural habitat American chestnut male (pollen) catkins. Castanea dentata is a rapidly-growing, large, deciduous hardwood eudicot tree. [20] A singular specimen manifest in Maine has attained a height of 115 feet (35 m) [21] Pre-blight sources give a maximum height of 100 feet (30 m), and a maximum circumference of 13 feet (4.0 m). [22]
Chestnut trees particularly flourish in the Mediterranean basin. [4] In 1584, the governor of Genoa, which dominated Corsica, ordered all the farmers and landowners to plant four trees yearly, among which was a chestnut tree – plus olive, fig and mulberry trees.
The trees have a short tribe and a big crown. Trees have a high density and the ground between the trees is often used as pasture. High forest: Wood and fruit production. This cultivation form is less intensive with a yield of 4–12 dt/ha and replacement of trees every 50–80 years. The trees grow from seeds and build a dense canopy.
Bouche de Bétizac is a French chestnut cultivar developed in 1962 by INRA at the station of Malemort-sur-Corrèze near Brive. It is a controlled hybrid between Castanea sativa and Castanea crenata (female Bouche rouge × male Castanea crenata CA04). This variety produces large to very large chestnuts. It has very good flavor for a hybrid.
The original Colossal tree and its pollinizer were planted in approximately 1888-1890 by Benjamin Tonella in Nevada City, California [2] The most likely source for the trees was The Barren Hill Nursery of Felix Gillet. Gillet imported some of the best French chestnut cultivars and also imported an assortment of Japanese chestnuts.
Leaf and flower detail of a Chinese chestnut at New York Botanical Garden. It is a deciduous tree growing to 20 metres (66 ft) tall with a broad crown. The leaves are alternate, simple, 10–22 centimetres (4– 8 + 1 ⁄ 2 in) long and 4.5–8 cm (1 + 3 ⁄ 4 – 3 + 1 ⁄ 4 in) broad, with a toothed margin.
The mission of The American Chestnut Foundation (TACF) is to restore the American chestnut tree to the forests of Eastern North America by breeding genetically diverse blight-resistant trees, evaluating various approaches to the management of chestnut pests and pathogens, and reintroducing the trees into the forest in an ecologically acceptable manner.
The seedlings of some flowering plants have no cotyledons at all. These are said to be acotyledons. The plumule is the part of a seed embryo that develops into the shoot bearing the first true leaves of a plant. In most seeds, for example the sunflower, the plumule is a small conical structure without any leaf structure. Growth of the plumule ...