onione

Onione is a bulbous herb in the Allium genus, cultivated for its edible storage bulb and greens. It is closely related to the common onion (Allium cepa) and is widely grown in temperate regions. The plant forms an underground bulb composed of fleshy scales with a dry papery tunic. Above ground, long, hollow leaves arise from the base and the plant bears an umbel of small flowers, usually white or pale.

Cultivation and varieties: Onione is typically grown from seed or sets. It prefers well-drained, fertile soil and full sun. Bulb formation is influenced by day length, with some varieties requiring longer days to develop large bulbs. Cropping rotations and good hygiene help prevent pest and fungal problems. Market forms include white, yellow, and red onions, as well as scallion-type greens.

Uses and nutrition: Bulbs are used raw in salads or cooked in a wide range of dishes; greens are used as a fresh herb or scallion. Onione provides vitamin C, B vitamins, dietary fiber and minerals, and contains sulfur compounds that contribute to aroma and taste.

Pests and diseases: Common threats include onion maggot, nematodes, thrips, and fungal diseases such as downy mildew and botrytis. Integrated pest management and crop rotation reduce losses.

See also: Onion, Shallot, Leek, Garlic.