Tarmo
ActiveAllium cepa L. var. cepa · Onion
Bejo Zaden B.V.
NL
4 records
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.
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.
Barona
ActiveAllium cepa L. var. cepa · Onion
Tezier SA (FR)
FR
2 records
Redstone
ActiveAllium cepa L. var. cepa · Onion
Hazera Seeds B.V.
NL
4 records
Caoba
ActiveAllium cepa L. var. cepa · Onion
Enza Zaden Beheer B.V.
NL
3 records
Niagara
ActiveAllium cepa L. var. cepa · Onion
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
PL
2 records
Valenciana Temprana
ActiveAllium cepa L. var. cepa · Onion
Domaine Public (FR)
FR
2 records
Fireking
ActiveAllium cepa L. var. cepa · Onion
TAKII & CO LTD
NL
2 records
Sivan
ActiveAllium cepa L. var. cepa · Onion
HAZERA (1939)
ES
2 records
Pasko
ActiveAllium cepa L. var. cepa · Onion
Syngenta Crop Protection AG
NL
2 records
Lizzy
ActiveAllium cepa L. var. cepa · Onion
Bejo Zaden B.V., De Groot en Slot B.V.
NL
3 records
De Brunswick
ActiveAllium cepa L. var. cepa · Onion
Domaine Public (FR)
FR
2 records
Prompto
ActiveAllium cepa L. var. cepa · Onion
Vilmorin SA (FR)
FR
3 records
Hysky
ActiveAllium cepa L. var. cepa · Onion
Bejo Zaden B.V., De Groot en Slot B.V.
NL
3 records
Prospector
ActiveAllium cepa L. var. cepa · Onion
Bejo Zaden/de Groot en Slot B.V.
NL
3 records
Regent
ActiveAllium cepa L. var. cepa · Onion
Enza Zaden Beheer B.V.
NL
2 records
Rolein
ActiveAllium cepa L. var. cepa · Onion
Hoza Zaden B.V.
NL
3 records
Ruz Tan
ActiveAllium cepa L. var. cepa · Onion
Organisation Bretonne de Selection-OBS (FR)
FR
2 records
Packito
ActiveAllium cepa L. var. cepa · Onion
Seminis Vegetable Seeds
NL
2 records
RX 07764947
TerminatedAllium cepa L. var. cepa · Onion
Bayer Holland B.V.
NL
2 records
Red Mountain
ActiveAllium cepa L. var. cepa · Onion
Bejo Zaden B.V., De Groot en Slot B.V.
NL
3 records
Sweet Magnolia
ActiveAllium cepa L. var. cepa · Onion
Bayer Holland B.V.
NL
2 records
Baragan
ActiveAllium cepa L. var. cepa · Onion
Bakker Brothers Gebroeders Bakker Zaadteelt en Zaadhandel BV
PL
2 records
Red Angel
ActiveAllium cepa L. var. cepa · Onion
Bejo Zaden B.V., De Groot en Slot B.V.
NL
3 records
Caramba
ActiveAllium cepa L. var. cepa · Onion
Kees Broersen Zaden
PL
2 records