Prunus domestica (Quercetin) dược liệu kháng HepG2
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Its hybrid parentage was believed to be Prunus spinosa and Prunus cerasifera.[2][3] ; however recent cytogenetic evidence seem to implicate 2x, 4x, 6x P. cerasifera as the sole wild stock from which the cultivated 6x prunus domestica could have evolved.
Characteristics[edit]
Typically it forms a large shrub or a small tree. It may be somewhat thorny, with white blossom, borne in early spring. The oval or spherical fruit varies in size, but can be up to 8 cm across, and is usually sweet (dessert plum), though some varieties are sour and require cooking with sugar to make them palatable. Like all Prunus fruits, it contains a single large seed, usually called a stone, which is discarded when eating.[5]
Plums are grown commercially in orchards, but modern rootstocks, together with self-fertile strains, training and pruning methods, allow single plums to be grown in relatively small spaces. Their early flowering and fruiting means that they require a sheltered spot away from frosts and cold winds.[5]
For a full discussion of the fruit, see under the main article Plum.
Cultivars[edit]
Numerous cultivars have been selected for garden use. The following have gained the Royal Horticultural Society's Award of Garden Merit:-
Subspecies[edit]
The European Garden Flora recognises three subspecies, though scientific studies favor a more fine-grained separation:
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The subspecies cross easily, so that numerous intermediate forms can be found: their sweetness and tartness may vary, their colors varying from bluish-purple to red, orange, yellow or light green.
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