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Variety traits

Vigor — Onion

Allium cepa L. var. cepa

Onion vigor is a composite index reflecting seed germination activity, seedling emergence rate, and the intensity of initial leaf apparatus development. This parameter is comparative and is used to assess a variety's developmental potential during the early stages of vegetation.

In the reference 39 varieties crop Onion, where this is mentioned in the description.

High seed vigor in onions contributes to the establishment of stand density and uniformity of emergence, which increases the crop's resilience to unfavorable environmental conditions during early stages. While this indicator directly affects crop uniformity, its impact is most pronounced in the first weeks of the plant's life and does not always persist until the active bulb formation phase.

The trait is evaluated using laboratory methods, such as accelerated aging tests, germination rate analysis, and digital morphometry, as well as field biometric observations of plant height and dry matter accumulation during the first 50–60 days. Due to the lack of universal numerical standards, evaluation is conducted relative to a control sample or standard under specific soil and climatic conditions.

General information about the subject — on the page Vigor.

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.

Ciclope

Active

Allium cepa L. var. cepa · Onion

RAMIRO ARNEDO, S.A.

ES
3 records

Tannat

Active

Allium cepa L. var. cepa · Onion

Enza Zaden Beheer B.V.

NL
3 records

Red Clay

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V.

NL
3 records

Irene

Active

Allium cepa L. var. cepa · Onion

INTERSEMILLAS SAU

ES
2 records

Allium cepa L. var. cepa · Onion

Bakker Brothers Gebroeders Bakker Zaadteelt en Zaadhandel BV

PL
2 records

Guimar

Active

Allium cepa L. var. cepa · Onion

PETOSEED CO

ES
2 records

Figaro

Active

Allium cepa L. var. cepa · Onion

Prosem (FR)

FR
3 records

Powell

Active

Allium cepa L. var. cepa · Onion

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

NL
3 records

Allium cepa L. var. cepa · Onion

Syngenta Seeds B.V.

NL
2 records

Duster

Active

Allium cepa L. var. cepa · Onion

Bayer Holland B.V.

NL
3 records

Vedette

Active

Allium cepa L. var. cepa · Onion

MERIDIEM SEEDS S.L.

ES
2 records

Barolo

Active

Allium cepa L. var. cepa · Onion

Enza Zaden Beheer B.V.

NL
3 records

Talismo

Terminated

Allium cepa L. var. cepa · Onion

Vilmorin SA (FR)

FR
2 records

Malbec

Active

Allium cepa L. var. cepa · Onion

Enza Zaden Beheer B.V.

NL
3 records

Palma

Active

Allium cepa L. var. cepa · Onion

MERIDIEM SEEDS S.L.

ES
2 records

SV7030NS

Active

Allium cepa L. var. cepa · Onion

Bayer Holland B.V.

NL
4 records

Vitéz

Active

Allium cepa L. var. cepa · Onion

Zoldesegtermesztesi Kutato Intezet RT (HU)

HR
2 records

Lucinda

Active

Allium cepa L. var. cepa · Onion

Enza Zaden Beheer B.V.

NL
2 records

Prelesco

Active

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

NL
4 records

Reyana

Active

Allium cepa L. var. cepa · Onion

MIRA SEEDS S.R.L.

PL
2 records

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

NL
2 records

Allium cepa L. var. cepa · Onion

RAMIRO ARNEDO, S.A.

ES
3 records

Carballo

Active

Allium cepa L. var. cepa · Onion

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

NL
4 records

Allium cepa L. var. cepa · Onion

Bayer Holland B.V.

NL
2 records