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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.

Brilliance

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Flevo Plant Holding B.V.

2 records

CONGLOW

Terminated

Petunia Juss. · Petunia

Ushio Sakazaki

2 records

CHQZ0002

Active

Argyranthemum frutescens (L.) Sch. Bip. · Marguerite daisy

Syngenta Crop Protection AG

2 records

Bombay Gold

Terminated

Celosia L. · Cockscomb

VAN DEN BOSCH PIETER CORNELIS

2 records

Betesorang

Active

Begonia x tuberhybrida Voss · Tuberous begonia

ter Laak Wendela Antoinette

2 records

Ben Lawers

Active

Ribes nigrum L. · Blackcurrant

The James Hutton Institute

3 records

Civasto-R

Terminated

Brassica rapa L. subsp. campestris (L.) A. R. Clapham · Field mustard

2 records

Bilbo

Terminated

Vicia faba L. · Broad bean

ERHARD EBMEYER

2 records

Arion

Terminated

Hibiscus rosa-sinensis L. · Chinese hibiscus

Poul Graff

2 records

Bullrudi 14

Active

Rudbeckia hirta L. · Black-eyed Susan

Hartwig Bull

2 records

Cartbas Depink

Terminated

Angelonia Bonpl. · Angelonia

RALPH TYLER PERKINS

2 records

Budapest

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

3 records

Braque Pink

Active

Chrysanthemum L. · Chrysanthemum

PETER WAIN

2 records

Allkiss

Active

Veronica x media Schrad.

WIM VAN DEN HOOGEN

2 records

Annecy Red

Terminated

Chrysanthemum L. · Chrysanthemum

Deliflor Royalties B.V

2 records

Alcazar

Active

Dianthus caryophyllus L. · Carnation

Barberet & Blanc S.A.

2 records

Balkapowi

Active

Phlox paniculata L. · Garden phlox

Kievit Christa

2 records

BALCEBIMHO

Terminated

Impatiens New Guinea Group · New Guinea Impatiens

KERRY MEYER STROPE

2 records

Balangloud

Terminated

Angelonia Bonpl. · Angelonia

SCOTT C TREES

2 records

Admiral

Active

Solanum lycopersicum L. · Tomato

NPF TOO «ILINICHNA»

2 records

BKPONVW

Active

Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia

Beekenkamp Annie Cornelia

2 records

AA4502

Application submitted

Anthurium Schott · Anthurium

DEROOSE PLANTS NV

2 records

Asteria

Active

Kalanchoe blossfeldiana Poelln. · Flaming Katy

Topcolor Breeding V.O.F.

2 records

BG66

Active

Baptisia tinctoria (L.) R. Br. · horseflyweed

Schaper & Brümmer GmbH & Co. KG

2 records

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