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Variety traits

Uniformity

Uniformity is an indicator of the homogeneity of a seed lot or plants in a crop based on traits such as size, height, maturity date, and habitus. High uniformity ensures even emergence and yield stability, which is critical for variety assessment and product quality.

Mentioned in descriptions 10 270 varieties reference book.

In agronomy and seed production, seed uniformity defines their homogeneity in size, most often thickness, which influences sowing quality. Crop uniformity characterizes the homogeneity of the plant stand in terms of height, phenological stage timing, and general plant habitus, which is important for the efficiency of mechanical harvesting.

During laboratory seed analysis, the indicator is expressed as a percentage representing the sum of the two most representative adjacent fractions. In variety testing, plant uniformity is evaluated visually or through the coefficient of variation of morphological traits. The lower the coefficient of variation, the higher the level of variety uniformity is considered to be.

The level of this trait depends on both the genetic characteristics of the variety and environmental conditions, including agronomic practices and meteorological factors during the seed formation period. Material with a uniformity of at least 80% is considered standard, and values below this threshold require mandatory calibration of the lot before sowing.

Sources10

Breakdown by crop

Found in these crops

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

DRC 564

Active

Solanum lycopersicum L. · Tomato

TOMAS DAVID LOMAS CANO

NL UA
6 records

Diomedes

Withdrawn

Diplotaxis tenuifolia (L.) DC. · Perennial wall-rocket

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL UA
4 records

Escala

Active

Raphanus sativus L. var. sativus · Radish

Jan Draaistra

NL UA
5 records

Erovan

Active

Malus domestica (Suckow) Borkh. · Apple

VAN WELL NURSERY (US)

ES FR
10 records

Beta vulgaris Garden Beet Group · Garden beet

Semenarna Ljubljana, SI

IT SI
4 records

Delfo

Active

Solanum lycopersicum L. · Tomato

Paul Degreef

NL UA
8 records

Chapman

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
7 records

Cygnus

Active

Asparagus officinalis L. · Asparagus

Ger Beemsterboer

NL UA
6 records

Cangou

Protection expired

Lolium perenne L. · Perennial ryegrass

Carneau Freres SA (FR)

DE FR
4 records

Confetto

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL UA
7 records

Dirk

Active

Solanum lycopersicum L. · Tomato

Enza Zaden (NL)

HR NL
4 records

Clarina

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Syngenta Seeds B.V.

NL UA
4 records

Citation

Protection expired

Ficus benjamina L. · Weeping fig

Wood, Bret T.|27999 Lake Jem Rd., Mt. Dora, FL 32745

BE NL
4 records

Cherifa

Active

Daucus carota L. · Carrot

Agri Obtentions SA, F

FR NL
5 records

Claforsa

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Syngenta Seeds B.V.

NL UA
4 records

Malus domestica (Suckow) Borkh. · Apple

Vivai Fratelli Zanzi Di Carlo Zanzi E C S.A.S. (IT)

FR UA
6 records

Cilema

Active

Brassica oleracea L. (White Cabbage Group) · White cabbage

Rijk Zwaan B.V.

DE PL
4 records

Charif

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Syngenta Seeds BV (NL)

FR NL
4 records

Cereza

Active

Solanum tuberosum L. · Potato

Johannes Martinus Kannegieter (J.M. Kannegieter)

NL UA
6 records

Bessta

Active

Capsicum annuum L. · Bell pepper

Syngenta Crop Protection AG

NL UA
6 records

Clovis

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Vilmorin SA (FR)

FR HR
4 records

Climbo

Active

Solanum lycopersicum L. · Tomato

Syngenta Seeds B.V.

NL UA
4 records

Charisma

Active

Daucus carota L. · Carrot

MORAVOSEED

CZ UA
4 records

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