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Pecan is a 32-chromosome species (1N = 16) that readily hybridizes with other 32-chromosome members of the Carya genus, such as Carya ovata, Carya laciniosa, Carya cordiformis and has been reported to hybridize with 64-chromosome species such as Carya tomentosa. Most such hybrids are unproductive.
The nine or ten genera in the family have a total of around 50 species, [3] and include the commercially important nut-producing trees walnut (Juglans), pecan (Carya illinoinensis), and hickory (Carya). The Persian walnut, Juglans regia, is one of the major nut crops of the world.
Hickory is a common name for trees composing the genus Carya, which includes 19 species accepted by Plants of the World Online. [ 3 ] Seven species are native to southeast Asia in China , Indochina , and northeastern India ( Assam ), and twelve are native to North America .
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This article is a list of diseases of pecan trees (Carya illinoinensis). Bacterial diseases. Bacterial diseases; Crown gall Agrobacterium tumefaciens:
Carya illinoinensis: 1919 [54] United States Virgin Islands: None [55] Utah: Quaking aspen: Populus tremuloides: 2014 [56] Vermont: Sugar maple: Acer saccharum: 1949 [57] [58] Virginia: Flowering dogwood: Cornus florida: 1956 [59] Washington: Western hemlock: Tsuga heterophylla: 1947 [60] [61] West Virginia: Sugar maple: Acer saccharum: 1949 ...
Carya illinoinensis (pecan) [52] The nuts are widely used in desserts and baking, and the wood is occasionally used in furniture and carpentry. Often grows on permeable, loamy soils. Uses: timber; landscaping, palatable food, veneers. [53] IL IN MD OH VA and the Southeast
Pecan scab is the most economically significant disease of pecan trees (Carya illinoinensis) in the southeastern United States. [1] Venturia effusa is a fungal plant pathogen that causes pecan scab. The fungus causes lesions and tissue death on pecan twigs, petioles, leaves, nuts and shucks beginning in early spring, with multiple cycles of ...