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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.

Fisrocky Dark Red

Terminated

Pelargonium L'Hér. ex Ait. · Geranium

Angelika Utecht

1 record

DUESURMAR

Terminated

Petunia Juss. · Petunia

Tobias Dümmen

1 record

Deliestrella

Terminated

Chrysanthemum L. · Chrysanthemum

Arie Gerard Post

1 record

Dueribluni

Terminated

Impatiens New Guinea Group · New Guinea Impatiens

MARGA DÜMMEN

1 record

FERCAHUN

Active

Prunus avium (L.) L. · Sweet cherry

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

1 record

FLOPHI1901

Active

Philodendron wendlandii Schott

Floralí Licensing B.V.

1 record

Fenprima

Withdrawn

Malus domestica (Suckow) Borkh. · Apple

Reinhard Kaneppele

1 record

FLOA190014

Active

Aster dumosus L. · Bushy aster

Florensis B.V.

1 record

Felice Pink

Active

Lavandula angustifolia Mill. · English lavender

P.P.M. van der Salm Holding B.V., L. Koning Beheer B.V.

1 record

Feeling Sunny

Terminated

Chrysanthemum L. · Chrysanthemum

Fides B.V.

1 record

Couhabis

Application submitted

Hydrangea paniculata Siebold · Panicled hydrangea

Lilaveronica S.A.R.L.

1 record

EVIPO109

Active

Clematis L. · Clematis

Poulsen Roser A/S^^^Raymond J. Evison Ltd.

1 record

EVIPO105

Active

Clematis L. · Clematis

Poulsen Roser A/S^^^Raymond J. Evison Ltd.

1 record

Curbella

Terminated

Curcuma L. · Turmeric

KP Holland Centraal B.V.

1 record

Doeuprapre

Application submitted

Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia

Dümmen Group B.V.

1 record

COADELSAM

Active

Delphinium elatum L. · Alpine delphinium

Anthony Paul Coakley

1 record

DICZ0004

Terminated

Dianthus plumarius L. · Garden pink

Syngenta Crop Protection AG

1 record

Dewi

Terminated

Saintpaulia ionantha H. Wendl. · African violet

De Eeuwige Lente B.V.

1 record

COADELPSUR

Active

Delphinium elatum L. · Alpine delphinium

Anthony Paul Coakley

1 record

EURZ0025

Active

Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia

Syngenta Crop Protection AG

1 record

Dektoshka Red

Terminated

Chrysanthemum L. · Chrysanthemum

Cornelis W. Dekker

1 record

Dekproud

Terminated

Chrysanthemum L. · Chrysanthemum

Cornelis W. Dekker

1 record

Estavana

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

ABZ Aardbeien uit Zaad Holding B.V.

1 record

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