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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.

Hilbechwaik

Withdrawn

Dianthus caryophyllus L. · Carnation

HilverdaKooij B.V

1 record

HGI1049

Terminated

Impatiens walleriana Hook. f. · Busy Lizzie

Hem Genetics Research B.V.

1 record

G20POS01WH

Terminated

Chrysanthemum L. · Chrysanthemum

PARATY B.V.B.A

1 record

Fulimyel

Terminated

Limonium Mill. · Sea Lavender

FUKUKAEN NURSERY&BULB CO.,LTD

1 record

Harvandermeerwhite

Active

Astilbe chinensis (Maxim.) Franch. & Sav. · Chinese astilbe

Maatschap Dhr. J.W.M. van der Meer en Mw. E.H. van der Meer-Godijn

1 record

JS Sowieso

Active

Sesleria heufleriana Schur

Spruyt Select CommV

1 record

Glambeam

Withdrawn

Helleborus orientalis Lam. · Lenten rose

HilverdaFlorist B.V.

1 record

Giored

Application submitted

Prunus avium (L.) L. · Sweet cherry

Gianluca Baruzzi^^^Daniela Giovannini^^^Sandro Sirri^^^Walther Faedi

1 record

JHE00424

Active

Helleborus niger L. · Christmas rose

Helleborus B.V.

1 record

GENLET

Terminated

Lobelia x speciosa Sweet

Peter M. Dealtrey

1 record

Hilsunemy

Application submitted

Dianthus caryophyllus L. · Carnation

HilverdaFlorist B.V.

1 record

Hilsinwe

Terminated

Limonium sinuatum (L.) Mill. · Statice

Hilverda B.V

1 record

Hilmoodevot

Active

Echinacea purpurea (L.) Moench · Purple coneflower

TAKII EUROPE B V

1 record

JHE00316

Active

hybrids between Helleborus x ericsmithii B. Mathew and Helleborus x hybridus hort. ex Voss

Helleborus B.V.

1 record

H220909

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Hydrangea Breeders Association B.V.

1 record

Julie

Terminated

Mandevilla sanderi (Hemsl.) Woodson · Brazilian jasmine

Gunnar Rosenlund

1 record

Isired

Application submitted

Prunus avium (L.) L. · Sweet cherry

Gianluca Baruzzi^^^Daniela Giovannini^^^Sandro Sirri^^^Walther Faedi

1 record

FLOAH18002

Active

Aster dumosus L. · Bushy aster

Florensis B.V.

1 record

JHE00291

Active

Helleborus x hybridus hort. ex Voss · Lenten rose

Microflor N.V.

1 record

JHE00214

Active

Helleborus x hybridus hort. ex Voss · Lenten rose

Microflor N.V.

1 record

Ircobarred

Active

Pelargonium grandiflorum (Andrews) Willd. · Regal pelargonium

Cultius Roig Sat 626 Cat, Institut de Recerca í Tecnologia Agroalimentàries (IRTA)

1 record

Fisnics Reddie

Terminated

Impatiens New Guinea Group · New Guinea Impatiens

FISCHER GERMANY GMBH

1 record

FUCIV52

Withdrawn

Malus domestica (Suckow) Borkh. · Apple

Michelangelo Leis^^^Alessio Martinelli

2 records

FLOR185128

Active

Petunia Juss. · Petunia

Florensis B.V.

1 record

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