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.

PG 2018

Active

Gossypium hirsutum L. · Upland cotton

PROGEN SEED INC.

4 records

Miro'

Active

Valerianella locusta (L.) Laterr. · Corn salad

MARALDI SEMENTI S.r.l.

3 records

MKS N 11

Active

Allium fistulosum L. · Welsh onion

Mikado Kyowa Seed Co. Ltd. (JP)

2 records

Mont blanc

Active

Cichorium intybus L. · Chicory

Hoquet Graines (FR)

2 records

Gala 0502

Application submitted

Malus Mill. · Apple

COLA GIACOMO

2 records

Giovi'

Active

Cucurbita pepo L. · Field pumpkin

SOUTHERN SEED S.R.L.

2 records

Corfu'

Active

Solanum lycopersicum L. var. lycopersicum · Tomato

S.A.I.S. Societa Agricola Italiana Sementi

2 records

'Durango'

Active

Phalaenopsis Bl. · Moth Orchid

Schoone Rene

3 records

GSS 1453

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Syngenta Seeds B.V.

2 records

Giwhisto-12

Terminated

Sutera Roth · Sutera

Ushio Sakazaki

2 records

Cal Roma-2000

Active

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

3 records

Yellow Green Runner

Active

Chrysanthemum L. · Chrysanthemum

Luc Pieters

2 records

89-001

Active

Diplotaxis tenuifolia (L.) DC. · Perennial wall-rocket

Kees Reinink

3 records

YBAZ-2147

Active

Rhododendron L. · Azalea

Wendy Bergman

2 records

BS 02828008

Active

Capsicum annuum L. · Bell pepper

Seminis Vegetable Seeds

5 records

Ucb 1

Active

Pistacia atlantica x Pistacia integerrima

Innea Alternativas Biotecnológicas S.L.

2 records

AL'FA

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

KLIMENKO NIKOLAJ NIKOLAEVICh / MAKSIMOV SERGEJ VASIL'EVICh

2 records

Poulpah 118

Active

Rosa L. · Rose

Poulsen Roser A/S

2 records

89-004

Active

Diplotaxis tenuifolia (L.) DC. · Perennial wall-rocket

Kees Reinink

3 records

OHAR 01245

Terminated

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

Dr Andrew Bernuetz, Oasis Horticulture Pty Ltd

3 records

34-019

Active

Cucumis melo L. · Melon

Kees Reinink

3 records

H2-F4

Active

Paulownia catalpifolia x Paulownia fortunei

WEGROW GERMANY GMBH

2 records

PE-3.219

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Stephen M. Ackerman, Steven D. Nelson Michael D. Nelson

3 records

OHAR 01240

Terminated

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

Dr Andrew Bernuetz, Oasis Horticulture Pty Ltd

3 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.