Variety traits
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.
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 & Company Ltd
Allium cepa L. var. cepa · Onion
Bejo Zaden B.V.
Allium cepa L. var. cepa · Onion
Agri-Saaten
Allium cepa L. var. cepa · Onion
Seminis Vegetable Seeds
Allium cepa L. var. cepa · Onion
Nickerson Zwaan B.V. (NL)
Allium cepa L. var. cepa · Onion
Hazera Seeds B.V.
Allium cepa L. var. cepa · Onion
Semenarna Ljubljana, SI
Allium cepa L. var. cepa · Onion
Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa w Ozarowie Mazowieckim Spolka z o.o.
Allium cepa L. var. cepa · Onion
Bejo Zaden BV (NL)
Allium cepa L. var. cepa · Onion
Asgrow Seed Company (US)
Allium cepa L. var. cepa · Onion
TAKII EUROPE B V
Allium cepa L. var. cepa · Onion
Bayer Holland B.V. (NL)
Allium cepa L. var. cepa · Onion
Bejo Zaden BV (NL)
Allium cepa L. var. cepa · Onion
Domaine Public (FR)
Allium cepa L. var. cepa · Onion
Bayer Holland B.V.
Allium cepa L. var. cepa · Onion
Bejo Zaden B.V.
Allium cepa L. var. cepa · Onion
Agri-Saaten
Allium cepa L. var. cepa · Onion
Bejo Zaden B.V., De Groot en Slot B.V.
Allium cepa L. var. cepa · Onion
CROOKHAM COMPANY
Allium cepa L. var. cepa · Onion
Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa w Ozarowie Mazowieckim Spolka z o.o.
Allium cepa L. var. cepa · Onion
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Allium cepa L. var. cepa · Onion
Enza Zaden Beheer B.V.
Allium cepa L. var. cepa · Onion
Bejo Zaden B.V., De Groot en Slot B.V.
Allium cepa L. var. cepa · Onion
Nunhems B.V.