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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.

Red Wing

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden BV (NL)

BG CZ HR NL

6 records

Franzisco

Active

Allium cepa L. var. cepa · Onion

Nickerson Zwaan B.V. (NL)

CZ HR NL PL SK

6 records

Daytona

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden BV (NL)

BG CZ HR NL PL

7 records

Caribo

Protection expired

Allium cepa L. var. cepa · Onion

Syngenta Seeds B.V.

CZ NL PL

7 records

Bonus

Active

Allium cepa L. var. cepa · Onion

Takii & Company Ltd

HR NL PL

5 records

Centurion

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden BV (NL)

CZ HR NL PL

6 records

Nerato

Active

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

CZ NL PL SK

5 records

Tamara

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden BV (NL)

BG CZ HR NL

5 records

Spirit

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V.

CZ NL PL

5 records

Aldobo

Protection expired

Allium cepa L. var. cepa · Onion

Syngenta Seeds B.V.

CZ NL PL

5 records

Imai Early Yellow

Protection expired

Allium cepa L. var. cepa · Onion

Agri-Saaten

CZ NL PL

4 records

Vaquero

Active

Allium cepa L. var. cepa · Onion

Nunza B.V

BG HR NL

4 records

Cardinal

Active

Allium cepa L. var. cepa · Onion

SHAMROCK SEED COMPANY

ES NL

5 records

Hyduro

Terminated

Allium cepa L. var. cepa · Onion

JAKOB JONG

DK NL PL

4 records

Django

Protection expired

Allium cepa L. var. cepa · Onion

Van der Have B.V.

CZ NL PL

4 records

Sunskin

Active

Allium cepa L. var. cepa · Onion

Syngenta Seeds B.V.

CZ NL PL

4 records

Delta

Terminated

Allium cepa L. var. cepa · Onion

Seminis Vegetable Seeds

ES NL PL

4 records

Corona

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V.

CZ NL PL

5 records

Barito

Active

Allium cepa L. var. cepa · Onion

Seminis Vegetable Seeds

CZ NL PL

4 records

Carlos

Active

Allium cepa L. var. cepa · Onion

Vilmorin SA (FR)

FR HR PL

5 records

Sterling

Active

Allium cepa L. var. cepa · Onion

Seminis Vegetable Seeds

ES NL PL

4 records

Sherpa

Protection expired

Allium cepa L. var. cepa · Onion

Van der Have B.V.

CZ NL PL

4 records

Marco

Protection expired

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

CZ NL PL

4 records

Hysam

Terminated

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V.

CZ NL PL

5 records

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