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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.

Allium cepa L. var. cepa · Onion

KANEKO SEEDS CO LTD

NL
4 records

Manesco

Active

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

NL
4 records

Tacana

Active

Allium cepa L. var. cepa · Onion

Bayer Holland B.V.

NL
3 records

Tęcza

Terminated

Allium cepa L. var. cepa · Onion

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

PL
3 records

Allium cepa L. var. cepa · Onion

TAKII EUROPE B V

NL
4 records

Ajusco

Active

Allium cepa L. var. cepa · Onion

Bayer Holland B.V.

NL
3 records

Kristine

Active

Allium cepa L. var. cepa · Onion

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

PL
2 records

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

Nunhems B.V.

NL
2 records

Pezero

Active

Allium cepa L. var. cepa · Onion

Graines Voltz (FR)

FR
2 records

Allium cepa L. var. cepa · Onion

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

PL
3 records

Lunera

Active

Allium cepa L. var. cepa · Onion

MERIDIEM SEEDS S.L.

ES
2 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

ALLIUM SEEDS UK LTD

NL
2 records

Red Silk

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V.

NL
3 records

Allium cepa L. var. cepa · Onion

TAKII & CO LTD

NL
3 records

Panter

Terminated

Allium cepa L. var. cepa · Onion

ZETA SEEDS S.L.

ES
2 records

Toli

Active

Allium cepa L. var. cepa · Onion

Domaine Public (FR)

FR
2 records

Cirrus

Active

Allium cepa L. var. cepa · Onion

SEMINIS INC

ES
2 records

Mondella

Active

Allium cepa L. var. cepa · Onion

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

NL
3 records

Furio

Active

Allium cepa L. var. cepa · Onion

Graines Gautier SA (FR)

FR
3 records

Opera

Active

Allium cepa L. var. cepa · Onion

CORA SEEDS SRL, IT

FR
3 records

Haeckero

Active

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

NL
4 records