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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.

SANTE'

Active

Solanum tuberosum L. · Potato

VEREDELINGSBEDRIJF VV

BG CZ EE HR HU IE +7
25 records

Hordeum vulgare L. · Barley

ULRICH and JOSEF BREUN

AT BE BG CZ DE ES +8
37 records

WA 38

Active

Malus domestica (Suckow) Borkh. · Apple

Washington State University, USA

FR UA
27 records

Hordeum vulgare L. · Barley

Lochow-Petkus GmbH (DE)

AT CZ DE DK EE FR +6
25 records

PIROL'

Active

Solanum tuberosum L. · Potato

Yosef Fohel`

BG DE HR LT LU PL +1
19 records

Rosa L. · Rose

Reinder Johan Christiaan Kielstra

PL
12 records

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Whitaker Vance M.

UA
13 records

P 9578

Active

Zea mays L. · Maize

Pioneer Overseas Cor, USA

AT BG HU RO SI SK +1
15 records

ZF08-070

Active

Vaccinium corymbosum L. · Highbush blueberry

Wagner L. Adam, Boches Peter Stefan, Bermudo Antonio A. Alamo, Brazelton M. David

UA
15 records

Secale cereale L. · Rye

Kryshtofik Renata, Bialokors`kyi IAn, Piatrusiak Alisiia,

AT CZ DE HR PL UA
17 records

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Vinson Peter Edward|Hernhill Faversham Kent, GB / Warren Simon Peter|Hernhill Faversham Kent, GB

ES NL
15 records

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

UNIVERSITY OF FLORIDA, GULF COAST RESEARCH AND EDUCATION CENTER

ES
14 records

FC13-122

Active

Vaccinium corymbosum L. · Highbush blueberry

Wendy Light (US) Antonio A. Alamo Bermudo (ES) Peter Stefan Boches (US) Adam L. Wagner (US) Devid M. Brazelton (US)

UA
12 records

R 201

Active

Malus domestica (Suckow) Borkh. · Apple

Valerie Fouillet

FR UA
11 records

7 four 7

Active

Solanum tuberosum L. · Potato

Jacob Eising

NL UA
16 records

Pyrus communis L. · European pear

Michael Bede & Wendy May King-Turner (NZ)

FR
12 records

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Whitaker Vance M.

ES
10 records

ROSE'

Active

Ananas comosus (L.) Merr. · Pineapple

THOMAS YOUNG / EBRAHIM FIROOZABADY

9 records

DOLE -14

Active

Ananas comosus (L.) Merr. · Pineapple

Young Roberto|Westlake Village, CA, US / Gonzales Jorge|San Jose, CR

9 records

Helianthus annuus L. · Sunflower

Revol Benoit

HR HU IT UA
15 records

Helianthus annuus L. · Sunflower

MAS SEEDS

ES IT RO UA
11 records

El Sol

Active

Lactuca sativa L. · Lettuce

Nunhems, NL

NL
12 records

Poa pratensis L. · Kentucky bluegrass

JACKLIN SEED

ES HR
9 records

Pelargonium peltatum (L.) L'Hér. · Ivy-leaf geranium

Nils Klemm

HU PL
8 records

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