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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.

Heldis

Terminated

Allium cepa L. var. cepa · Onion

Clause Semences SA (FR)

FR
1 record

Chui

Application submitted

Allium cepa L. var. cepa · Onion

Enza Zaden Beheer B.V.

NL
2 records

De Huy

Terminated

Allium cepa L. var. cepa · Onion

Domaine Public (FR)

FR
1 record

TEXAS YELLOW GRANO

Withdrawn

Allium cepa L. var. cepa · Onion

SEMINIS VEGETABLE SEED IB

ES
2 records

Ambros

Terminated

Allium cepa L. var. cepa · Onion

Vilmorin SA (FR)

FR
1 record

Red Eagle

Application submitted

Allium cepa L. var. cepa · Onion

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

NL
2 records

De Valence

Terminated

Allium cepa L. var. cepa · Onion

Domaine Public (FR)

FR
1 record

Red Orb

Withdrawn

Allium cepa L. var. cepa · Onion

Magnus Kahl Seeds Pty Ltd

NL
1 record

Yellow Star

Application submitted

Allium cepa L. var. cepa · Onion

Syngenta Crop Protection AG

NL
1 record

Stirling

Active

Allium cepa L. var. cepa · Onion

ALLIUM SEEDS UK LTD

NL
2 records

VULCANO

Withdrawn

Allium cepa L. var. cepa · Onion

Seminis Vegetable Seeds

ES
1 record

Blanc de Lisbonne

Terminated

Allium cepa L. var. cepa · Onion

Domaine Public (FR)

FR
1 record

Red Garcia

Application submitted

Allium cepa L. var. cepa · Onion

Bayer Holland B.V.

NL
1 record

Elvira

Application submitted

Allium cepa L. var. cepa · Onion

Fytro Seeds S.A. (GR)

BG
1 record

Lunika

Active

Allium cepa L. var. cepa · Onion

CORA SEEDS S.R.L

2 records

Opera F1

Active

Allium cepa L. var. cepa · Onion

CORA SEEDS S.R.L

1 record

RED VELVET

Application submitted

Allium cepa L. var. cepa · Onion

INTERSEMILLAS SAU

ES
1 record

Annika

Active

Allium cepa L. var. cepa · Onion

Enza Zaden Beheer B.V.

NL
1 record

Mirande

Application submitted

Allium cepa L. var. cepa · Onion

ALLIUM SEEDS UK LTD

NL
2 records

Red Marley

Application submitted

Allium cepa L. var. cepa · Onion

Bayer Holland B.V.

NL
1 record

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