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

Tomato Uniformity 81 Uniformity — White Cabbage 79 Barley grain uniformity 68 Carrot uniformity 51 Potato Uniformity 47 Uniformity — Cauliflower 45 Uniformity of lettuce 40 Pepper uniformity 38 Radish uniformity 31 Uniformity — Onion 30 Uniformity of cucumber 23 Sunflower uniformity 21 Uniformity — Onion 20 Uniformity — soft wheat 19 Uniformity — Broccoli 16 Triticale Uniformity 15 Watermelon Uniformity 14 Bean uniformity 14 Uniformity — Brussels sprout 13 Uniformity — Red Cabbage 12 Uniformity of zucchini 11 Uniformity — Leek 10 Uniformity of Chrysanthemum 10 Pea uniformity 10

Found in these crops

Tomato 944 Bell pepper 415 Lettuce 371 Cucumber 272 Potato 256 White cabbage 242 Melon 231 Carrot 215 Cauliflower 192 Field pumpkin 149 Maize 146 Common bean 146

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.

Tonatico

Active

Solanum lycopersicum L. · Tomato

Bejo Zaden BV, NL

5 records

Uptrace

Active

Cucumis sativus L. · Cucumber

NUNHEMS

7 records

Tronus

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

6 records

Universa

Active

Solanum tuberosum L. · Potato

CECAB (FR)/Bretagne-plants (FR)

6 records

Tetris

Active

Poa pratensis L. · Kentucky bluegrass

Novel AG

4 records

Timor

Active

Cucumis sativus L. · Cucumber

Hazera

5 records

Tomahawk

Active

Pisum sativum L. · Pea

Limagrain UK

8 records

Travis

Active

Solanum tuberosum L. · Potato

Interseed Potatoes GmbH

5 records

Telex

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

7 records

Tigershark

Active

Agrostis stolonifera L. · Creeping bentgrass

Novel AG

4 records

Tracey

Active

Solanum melongena L. · Eggplant

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

7 records

Terek

Active

Brassica oleracea L. (Kohlrabi Group) · Kohlrabi

RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.

4 records

Sylred

Active

Prunus armeniaca L. · Apricot

Pepinieres & Vergers Escande EARL (FR)

6 records

Sweet Candle

Active

Daucus carota L. · Carrot

SSC JP

4 records

Sungal

Active

Aster L. · Aster

Michael Danziger

4 records

Stromboli

Active

Daucus carota L. · Carrot

HM.CLAUSE

5 records

Supersonic

Active

Festuca arundinacea Schreb. · Tall fescue

Peak Plant Genetics, LLC & Rutgers, The State University of New Jersey

4 records

Stefanie

Active

Solanum tuberosum L. · Potato

Winfried Lange, Frank Lange

6 records

Sumun

Active

Cucumis sativus L. · Cucumber

Monsanto Vegetable, NL

6 records

Sonyx

Active

Triticum aestivum L. · Bread wheat

Caussade Semences, F

5 records

Starlight

Active

Pisum sativum L. · Pea

Limagrain UK

5 records

Spartacus

Active

Asparagus officinalis L. · Asparagus

Theuws Johannes Henricus Adrianus / Arends Lambert Willem Johannes

8 records

Stapriley

Active

Alstroemeria L. · Alstroemeria

VAN STAAVEREN B.V.

4 records

Stanley

Active

Phaseolus vulgaris L. · Common bean

Holland-Select Research B.V.

6 records

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Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.