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.

Silvia

Terminated

Phaseolus vulgaris L. · Common bean

HILD WALTER| Walter Hild

3 records

Silonis

Active

Lactuca sativa L. · Lettuce

Gautier Semences SAS (FR)

2 records

Sława Ożarowa

Active

Allium cepa L. var. cepa · Onion

Instytut Ogrodnictwa - Państwowy Instytut Badawczy \Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa w Ożarowie Mazowieckim Spółka z o.o.

3 records

Segura

Active

Cucumis sativus L. · Cucumber

ISI SEMENTI SPA

2 records

Seceda

Active

Brassica oleracea L. (Broccoli Group) · Broccoli

Syngenta Crop Protection AG

3 records

Sedandy

Active

Gerbera L. · Gerbera

BINDI MAURIZIO

2 records

Sjaleza

Active

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

3 records

Serydan

Active

Brassica oleracea L. (Broccoli Group) · Broccoli

INTERSEMILLAS SAU

2 records

Scarlatti

Active

Solanum melongena L. · Eggplant

Enza Zaden Beheer B.V.

3 records

Serenity

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Enza Zaden Beheer B.V.

2 records

Selija

Active

Pyrus communis L. · European pear

Rudolfs Dumbravs

2 records

Serafin

Active

Cucumis melo L. · Melon

Syngenta Crop Protection AG

2 records

Silverside

Application submitted

Spinacia oleracea L. · Spinach

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

2 records

Scorpion

Active

Allium cepa L. var. cepa · Onion

CROOKHAM COMPANY

3 records

Seculare

Active

Cucumis sativus L. · Cucumber

Nunhems B.V.

4 records

Sapporita

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

UNITED GENETICS SEEDS CO

2 records

Satine

Active

Rubus idaeus L. · Red raspberry

Marionnet SCEA (FR)

3 records

Sandros

Terminated

Capsicum annuum L. · Bell pepper

De Ruiter Seeds B.V.

3 records

Santorino

Active

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

2 records

Scirocco

Terminated

Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Dr. O. Sass

3 records

Scipio

Active

Capsicum annuum L. · Bell pepper

Vilmorin SA (FR)

2 records

Schneewittchen

Active

Beta vulgaris Garden Beet Group · Garden beet

ReinSaat KG

2 records

Schneekopf

Terminated

Asparagus officinalis L. · Asparagus

STEIN DR. M.| Dr. M. Stein im Institut fuer Zuechtungsforschung

3 records

Salmeron

Terminated

Cucumis melo L. · Melon

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

2 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.