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Variety traits

Vegetation period — onion

Allium cepa L. var. cepa

The vegetation period of an onion is a key varietal trait, measured from mass emergence to technical maturity, which determines storage potential and crop management strategy.

In the reference 109 varieties crop Onion, where this is mentioned in the description.

For this crop, the end of the vegetation period is characterized by mass lodging of the foliage, yellowing and wilting of the leaves, as well as drying of the bulb neck and the formation of outer scales. Based on the duration of the period, varieties are classified as early-maturing (60–100 days), mid-maturing (90–120 days), and late-maturing (more than 120 days).

The duration of the vegetation period directly affects storability: varieties with a long dry matter accumulation cycle store better than early-maturing ones. Agronomic practices require the cessation of irrigation 2–3 weeks before the end of the vegetation period, as excess nitrogen or moisture during this time delays ripening, leads to the formation of a thick neck, and reduces the resistance of the bulbs to decay.

Failure to observe harvest timing is critical for crop quality. Overstaying in the field triggers secondary root growth or bolting, while premature harvesting leaves the neck succulent and vulnerable to infections, as the outer scales do not have enough time to form.

General information about the subject — on the page Vegetation period.

Sources8

Varieties of Onion mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

Allium cepa L. var. cepa · Onion

TAKII EUROPE B V

NL
4 records

SV4058NU

Active

Allium cepa L. var. cepa · Onion

Bayer Holland B.V.

NL
3 records

Fenrock

Active

Allium cepa L. var. cepa · Onion

Kees Broersen Zaden

PL
2 records

Premier

Active

Allium cepa L. var. cepa · Onion

Domaine Public (FR)

FR
2 records

Allium cepa L. var. cepa · Onion

CROOKHAM COMPANY

NL
2 records

Panter

Terminated

Allium cepa L. var. cepa · Onion

ZETA SEEDS S.L.

ES
2 records

Opera

Active

Allium cepa L. var. cepa · Onion

CORA SEEDS SRL, IT

FR
3 records

Wola

Active

Allium cepa L. var. cepa · Onion

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

PL
3 records

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V., De Groot en Slot B.V.

NL
3 records

Finezja

Active

Allium cepa L. var. cepa · Onion

Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa w Ozarowie Mazowieckim Spolka z o.o.

PL
2 records

Baggi

Active

Allium cepa L. var. cepa · Onion

Enza Zaden Beheer B.V.

NL
2 records

Cartier

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V., De Groot en Slot B.V.

NL
3 records

Yosemite

Active

Allium cepa L. var. cepa · Onion

K2 Seed Growers, Inc (US)

FR
2 records

Firmo

Active

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

NL
2 records

SV7030NS

Active

Allium cepa L. var. cepa · Onion

Bayer Holland B.V.

NL
4 records

Scarlet

Active

Allium cepa L. var. cepa · Onion

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

PL
3 records

Allium cepa L. var. cepa · Onion

ALLIUM SEEDS UK LTD

NL
2 records

Karmesa

Active

Allium cepa L. var. cepa · Onion

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

PL
3 records

Allium cepa L. var. cepa · Onion

Nunhems B.V.

NL
4 records

Frontino

Terminated

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

NL
2 records

Allium cepa L. var. cepa · Onion

Bayer Holland B.V.

NL
3 records

Allium cepa L. var. cepa · Onion

Zhechka Zhecheva, Yordan Todorov, Delka Gencheva

BG
3 records

Niagara

Active

Allium cepa L. var. cepa · Onion

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

PL
2 records

Rolein

Active

Allium cepa L. var. cepa · Onion

Hoza Zaden B.V.

NL
3 records