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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.

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.

Hoopla

Terminated

Allium cepa L. var. cepa · Onion

Rio Colorado Seeds Inc. (US)

FR
2 records

Fuséor

Active

Allium cepa L. var. cepa · Onion

Cooperative Fleuron d'Anjou (FR)

FR
2 records

Allium cepa L. var. cepa · Onion

Enza Zaden Beheer B.V.

NL
2 records

Allium cepa L. var. cepa · Onion

Gospodarstwo Nasiennictwa i Hodowli Roślin Eugeniusz Bogdan Żurański \Instytut Ogrodnictwa - Państwowy Instytut Badawczy

PL
3 records

Salute

Active

Allium cepa L. var. cepa · Onion

CROOKHAM COMPANY

NL
3 records

Lunera

Active

Allium cepa L. var. cepa · Onion

MERIDIEM SEEDS S.L.

ES
2 records

Trophy

Active

Allium cepa L. var. cepa · Onion

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

NL
4 records

Sumatra

Active

Allium cepa L. var. cepa · Onion

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

PL
2 records

Nieto

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V.

NL
3 records

Reks

Active

Allium cepa L. var. cepa · Onion

TAKII & CO LTD

NL
3 records

Gamay

Active

Allium cepa L. var. cepa · Onion

Enza Zaden Beheer B.V.

NL
3 records

Redshine

Active

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

NL
3 records

Allium cepa L. var. cepa · Onion

Przemysław Jazic

PL
2 records

Allium cepa L. var. cepa · Onion

ALLIUM SEEDS UK LTD

NL
2 records

Allium cepa L. var. cepa · Onion

Domaine Public (FR)

FR
2 records

Allium cepa L. var. cepa · Onion

INGACAL/WAMESTRADA S.L.L.

ES
2 records

Darko

Active

Allium cepa L. var. cepa · Onion

Syngenta Seeds B.V.

NL
2 records

Allium cepa L. var. cepa · Onion

Domaine Public (FR)

FR
2 records

Premier

Active

Allium cepa L. var. cepa · Onion

Domaine Public (FR)

FR
2 records

Allium cepa L. var. cepa · Onion

Domaine Public (FR)

FR
2 records

Vicking

Withdrawn

Allium cepa L. var. cepa · Onion

HM.Clause S.A.S.

FR
2 records

Dammika

Active

Allium cepa L. var. cepa · Onion

Agri-Saaten

NL
3 records

Otylia

Terminated

Allium cepa L. var. cepa · Onion

TORSEED - Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa S.A.

PL
2 records

Red Duke

Active

Allium cepa L. var. cepa · Onion

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

NL
3 records

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