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.

Primor

Terminated

Triticum aestivum L. · Bread wheat

Secobra Recherches, FR

1 record

Pura Luna

Active

Lilium L. · Lily

W. van Lierop & Zonen B.V.

1 record

Price Fighter

Active

Tulipa L. · Tulip

Triflor Breeding Rights B.V.

1 record

PST 5 TR 1

Active

Festuca arundinacea Schreb. · Tall fescue

PURE SEED TESTING

1 record

PRUCTOR CEMES

Terminated

Brassica oleracea L. (White Cabbage Group) · White cabbage

SJAAK VAN DER PLOEG

1 record

Quisor F1

Terminated

Brassica oleracea L. (White Cabbage Group) · White cabbage

Zoltan Gazsi

1 record

/PR 44 V 22/

Terminated

Brassica napus var. napus · Rapeseed

Jean-Claude Pruvot

1 record

Primabel

Terminated

Solanum lycopersicum L. · Tomato

Clause Semences SA (FR)

1 record

PST-0CV6

Active

Agrostis stolonifera L. · Creeping bentgrass

PURE SEED TESTING

1 record

Polar River

Active

Freesia Eckl. ex Klatt · Freesia

L.H. Beheer

1 record

PSBR22001

Application submitted

Capsicum annuum L. · Bell pepper

SAKATA VEGETABLES EUROPE SAS

1 record

Prebona

Application submitted

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Naumov Ruslan Olehovych, Krasniuk Viacheslav Anatoliiovych,

2 records

Prezent

Terminated

Fragaria L. · Strawberry

Kopan Volodymyr Pavlovych, Kopan` Kira Mykolaivna,

2 records

POP ORVILLIERS

Active

Triticum aestivum L. subsp. aestivum · Bread wheat

EARL Ferme d'Orvilliers

1 record

Podcast

Active

Tulipa L. · Tulip

Select Flower

1 record

Potomak F1

Active

Cucumis sativus L. · Cucumber

Hari Besels

1 record

Pomonte

Active

Lilium L. · Lily

World Breeding B.V

1 record

PHOGP

Terminated

Zea mays L. · Maize

Kuhn, William E.

1 record

Picca

Active

Brassica oleracea L. (White Cabbage Group) · White cabbage

ReinSaat KG

1 record

Pippi Langstrumpf

Active

Erica gracilis J. C. Wendl. · Slender heath

PREIL| Dr. Walter Preil im Institut fuer gartenbauliche Pflanzenzuechtung / ELBINGHAUS| Rainer Ebbinghaus im Institut fuer gartenbauliche Pflanzenzuechtung

2 records

Pink Twist

Active

Tulipa L. · Tulip

Silva Tarouca Research Institu

2 records

Peremozhets

Active

Hordeum vulgare L. · Barley

Zinkovs`ka Inna Oleksandrivna, Kraievs`kyi Anatolii Mykolaiovych, Karpenko Oleksandr Oleksandrovych,

4 records

Perfekt

Withdrawn

Zea mays L. · Maize

SESVANDERHAVE| SESVANDERHAVE N.V./S.A. Industriepark

1 record

Põhjanael

Active

Clematis L. · Clematis

Uno Kivistik, Aili Kivistik

1 record

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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.