lundi 19 août 2013

What Is American Chestnut


What Is American Chestnut Castanet dentate is a deciduous tree of rapid growth, historically reaching up to 30 meters (98 feet) high and What Is American Chestnut 3 meters (9.8 feet) in diameter. It ranged from Maine and southern Ontario to Mississippi and the Atlantic Coast to the Appalachians and the Ohio Valley. It has several related species of chestnut, sweet European chestnut, Chinese chestnut, Japanese and chestnut, which are different from American species by some morphological traits, such as leaf shape What Is American Chestnut, petiole length and size of the nut. C. dentate was once one of the most common trees in the northeastern U.S.. Only in Pennsylvania, which is estimated at 25-30% consists of all hardwoods.

What Is American ChestnutTree huge population was due to a combination of rapid growth and high annual seed culture front oaks not reliably produce a considerable number of acorns each year. Walnut production starts when C. dentate is only 7-8 years.
C. dentate can be best identified by the seaworthy more space on the edges of the leaves, as the scientific name dentate, Latin for "teeth." The leaves are 14-20 cm (5-8 inches) long and 7-10 cm (3-4) wide, also tend to be What Is American Chestnut a little shorter and wider than medium brown. Chestnut blight resistant Chinese chestnut species is now commonly planted What Is American Chestnut in the United States, while the brown is the source of commercial nuts in recent decades.

It differs from the What Is American chestnut by its hairy twig tips which are in contrast with hairless twigs of What Is American chestnut. Chestnuts are in the family of beech beech and oak, but are not closely related to the horse chestnut, which is in the family Saponaceous.
The chestnut is monoacids, producing many small flowers, pale green men (almost white) found occurring along about 6-8 inches long kittens. The female parts are found near the base of the kittens (about branch) and appear in late spring to early summer.

Once an important hardwood tree, the What Is American Chestnut is highly susceptible to chestnut blight, caused by an Asian bark fungus (Chronometrical parasitic, formerly Indochina parasitic) accidentally introduced into North America imported Asian chestnut. The disease was first observed in the Buckeyes in what was then the New York Zoo, now known as the Bronx Zoo in 1904 by Hermann Merkel chief ranger. While the Chinese chestnut scourge has evolved and developed a strong resistance, the What Is American chestnut was little resistance. The air bark fungus spread 50 miles (80 km) per year, and in a few decades beat and killed nearly three billion What Is American chestnut. Salvage recording in the early years of the burn may have unwittingly destroyed trees that had high levels of resistance to this disease and thus aggravated the disaster What Is American Chestnut.
New shoots often grow from the roots when the main stem dies, if the case has not yet gone. However, stump sprouts rarely What Is American Chestnut reach over 6 m (20 ft) high, before the return of the infection of the burn What Is American Chestnut.