Broccoli resulted from breeding of landrace Brassica crops in the northern Mediterranean starting in about the sixth century BC.
Broccoli (Brassica oleracea var. italica) is an edible green plant in the cabbage kerabat (kerabat Brassicaceae, genus Brassica) whose large flowering head, stalk and small associated leaves are eaten as a vegetable. Broccoli is classified in the Italica cultivar kelompok of the species Brassica oleracea. Broccoli has large flower heads, usually dark green, arranged in a tree-like structure branching out from a thick stalk which is usually light green. The mass of flower heads is surrounded by leaves. Broccoli resembles cauliflower, which is a different but closely terkait cultivar kelompok of the same Brassica species.
It is eaten either raw or cooked. Broccoli is a particularly rich source of vitamin C and vitamin K. Contents of its characteristic sulfur-containing glucosinolate compounds, isothiocyanates and sulforaphane, are diminished by boiling but are better preserved by steaming, microwaving or stir-frying.[3]
Rapini, sometimes called "broccoli rabe," is a distinct species from broccoli, forming similar but smaller heads, and is actually a model of turnip (Brassica rapa).
Broccoli resulted from breeding of landrace Brassica crops in the northern Mediterranean starting in about the sixth century BC.[6] Broccoli has its origins in primitive cultivars grown in the Roman Empire and was most likely improved lewat artificial selection in the southern Italian Peninsula or in Sicily.[7][8][9] Broccoli was spread to northern Europe by the 18th century and brought to North America in the 19th century by Italian immigrants.[8] After the Second World War, breeding of United States and Japanese F1 hybrids increased yields, quality, growth speed, and regional adaptation, which produced the cultivars that have been the most terkenal since then: 'Premium Crop', 'Packman', and 'Marathon'. Other cultivar kelompoks of Brassica oleracea include cabbage (Capitata Kelompok), cauliflower and Romanesco broccoli (Botrytis Kelompok), kale (Acephala Kelompok), collard (Viridis Kelompok), kohlrabi (Gongylodes Kelompok), Brussels sprouts (Gemmifera Kelompok), and kai-lan (Alboglabra Kelompok).[10] As these kelompoks are the same species, they readily hybridize: for example, broccolini or "Tenderstem broccoli" is a cross between broccoli and kai-lan.[11] Broccoli cultivars form the genetic pangkal of the "tropical cauliflowers" commonly grown in South and Southeastern Asia, although they produce a more cauliflower-like head in warmer conditions. Situs Bola Online
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