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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

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.

Duetisushine

Terminated

Osteospermum L. · Osteospermum

Tobias Dümmen

2 records

Fispur

Terminated

Pelargonium L'Hér. ex Ait. · Geranium

Angelika Utecht

2 records

Dueroyal

Active

Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia

MARGA DÜMMEN

2 records

FRCK 003 S 123

Application submitted

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Hiroyuki Mekada, Hiroko Inamura, Tetsuya Kato, Yuka Shimizu

4 records

Fikalraja

Active

Kalanchoe blossfeldiana Poelln. · Flaming Katy

Vlielander Ike J.

3 records

Fichrybrepin

Active

Chrysanthemum L. · Chrysanthemum

Fides B.V.

2 records

D Overflow

Active

x Gasteraloe · Gasteraloe

Jimenez Javier Andres

2 records

COSEH 840

Active

Helleborus x nigercors J. T. Wall

Josef Heuger

2 records

DANCOP24

Application submitted

Sutera cordata Thunb. Kuntze · Bacopa

Gavriel Danziger

2 records

Dophlflawhim

Active

Phlox paniculata L. · Garden phlox

van Sambeek Ellen

2 records

Dophlearblupop

Active

Phlox paniculata L. · Garden phlox

van Sambeek Ellen

2 records

Evita Pink

Active

Anthurium Schott · Anthurium

Avo Anthuriums B.V.

2 records

Don Amador

Active

Kalanchoe blossfeldiana Poelln. · Flaming Katy

Leonardus J. M. van der Knaap

2 records

Dokaladki

Active

Kalanchoe blossfeldiana Poelln. · Flaming Katy

Vlielander Ike J.

2 records

Evelina

Active

Papaver rhoeas L.

GIORGIO SAGRATI

2 records

DLFSHAD3

Active

Chrysanthemum L. · Chrysanthemum

Arie Gerard Post

2 records

Fichryrainsun

Active

Chrysanthemum L. · Chrysanthemum

Fides B.V.

2 records

Fichrycoswhi

Active

Chrysanthemum L. · Chrysanthemum

Fides B.V.

2 records

DLFMARA1

Active

Chrysanthemum L. · Chrysanthemum

Arie Gerard Post

2 records

COSEH 970

Active

Helleborus L. · Christmas Rose

Josef Heuger

2 records

COSEH 910

Active

Helleborus x nigercors J. T. Wall

Josef Heuger

2 records

COSEH 830

Active

Helleborus x nigercors J. T. Wall

Josef Heuger

2 records

COSEH 3050

Active

Helleborus x nigercors J. T. Wall

Josef Heuger

2 records

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