Opera
ActiveAllium cepa L. var. cepa · Onion
CORA SEEDS SRL, IT
FR
3 records
Variety traits
Bulb — Onion
Allium cepa L. var. cepa
The main economically valuable organ of the onion, assessed by morphometric traits: size, weight, density, and shape index, which influence storage quality and suitability for mechanical harvesting.
In the reference 691 varieties crop Onion, where this is mentioned in the description.
For onions, the bulb is the primary object of evaluation, where the key parameters are size, determined by the maximum transverse diameter, and weight. Bulb shape is classified into six types — from flat to elongated — and is quantitatively expressed by the shape index, which represents the ratio of height to diameter.
Important agronomic characteristics include density and maturity, determined by the condition of the dry outer scales and the dried neck. Breeding also considers the trait of bulbil formation (nesting), where varieties that form a single bulb from the basal plate are preferred for commercial cultivation.
Technological quality indicators of the bulb include storability, determined by varietal traits, and dry matter content, which is important for industrial processing. Uniformity of bulbs in shape and weight is a critical factor for the efficiency of mechanical harvesting and grading.
General information about the subject — on the page Bulb.
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.
Wola
ActiveAllium cepa L. var. cepa · Onion
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
PL
3 records
Conquest
ActiveAllium cepa L. var. cepa · Onion
Magnus Kahl Seeds Pty Ltd
NL
3 records
De la Reine
ActiveAllium cepa L. var. cepa · Onion
Domaine Public (FR)
FR
2 records
Haeckero
ActiveAllium cepa L. var. cepa · Onion
Hazera Seeds B.V.
NL
4 records
Ciclope
ActiveAllium cepa L. var. cepa · Onion
RAMIRO ARNEDO, S.A.
ES
3 records
Dawson
ActiveAllium cepa L. var. cepa · Onion
Bejo Zaden B.V., De Groot en Slot B.V.
NL
3 records
Bella Catarina
TerminatedAllium cepa L. var. cepa · Onion
SAKATA SEED SUDAMERICA LTDA
ES
2 records
Oracle
ActiveAllium cepa L. var. cepa · Onion
CROOKHAM COMPANY
NL
3 records
Vectra
TerminatedAllium cepa L. var. cepa · Onion
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
PL
2 records
Raptor
TerminatedAllium cepa L. var. cepa · Onion
Rio Colorado Seeds Inc. (US)
FR
2 records
Tropical
TerminatedAllium cepa L. var. cepa · Onion
Panora s.p.a.
NL
2 records
Algida
ActiveAllium cepa L. var. cepa · Onion
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
PL
3 records
White Castle
ActiveAllium cepa L. var. cepa · Onion
CROOKHAM COMPANY
NL
3 records
Whitney
TerminatedAllium cepa L. var. cepa · Onion
Seminis Vegetable Seeds
ES
2 records
Tannat
ActiveAllium cepa L. var. cepa · Onion
Enza Zaden Beheer B.V.
NL
3 records
Axati
ActiveAllium cepa L. var. cepa · Onion
MERIDIEM SEEDS S.L.
ES
2 records
Bila
ActiveAllium cepa L. var. cepa · Onion
PlantiCo Zielonki Sp. z o.o.
PL
3 records
Red Clay
ActiveAllium cepa L. var. cepa · Onion
Bejo Zaden B.V.
NL
3 records
Vulcan200
ActiveAllium cepa L. var. cepa · Onion
ALLIUM SEEDS UK LTD
NL
2 records
Sindy
TerminatedAllium cepa L. var. cepa · Onion
Clause Semences SA (FR)
FR
2 records
De Vaugirard
ActiveAllium cepa L. var. cepa · Onion
Domaine Public (FR)
FR
2 records
PS 25294
ActiveAllium cepa L. var. cepa · Onion
Bayer Holland B.V.
NL
3 records
Bridewhite
ActiveAllium cepa L. var. cepa · Onion
Bejo Zaden B.V., De Groot en Slot B.V.
NL
3 records