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.

UG 8168 F1

Active

Solanum lycopersicum L. · Tomato

Dr. Mario Martinelli

2 records

VIGOR MAX (LE 4050)

Active

Allium sativum L. · Garlic

BASIC VEGETABLE PRODUCTS

1 record

Tuocan

Terminated

Spinacia oleracea L. · Spinach

Kees Reinink

1 record

Vanza

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Shevchenko Ihor Andriiovych

2 records

Tukipink

Application submitted

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

2 records

Tutti Sun

Application submitted

Solanum lycopersicum L. · Tomato

HM Clause SAS (FR)/Abundant Seeds Pty Ltd (AU)

1 record

Veleten

Active

Lagurus ovatus L.

Hryd`ko Ol`ha Oleksandrivna, Kudina Halyna Oleksandrivna,

2 records

TT706

Active

Cichorium intybus L. · Chicory

T&T VEGETABLE SEEDS S.R.L.

1 record

Trick

Application submitted

Cucurbita pepo L. · Field pumpkin

Levantia Seed Srl (IT)

1 record

UG 205

Active

Cucurbita moschata Duchesne · Butternut squash

UNITED GENETICS SEEDS CO

1 record

Toyoto F1

Terminated

Solanum lycopersicum L. · Tomato

Ger Bimsdeboer

1 record

Tyurkoaz

Active

Hordeum vulgare L. · Barley

Dobroudja Agricultural Institute - General Toshevo (BG)

1 record

Uvertyura

Terminated

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

Eike Kampe, Lipskyi Volodymyr Volodymyrovych,

2 records

TOLETUM

Application submitted

Capsicum annuum L. · Bell pepper

RAMIRO ARNEDO, S.A.

1 record

Tropired

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Bayer Holland B.V. (NL)

1 record

TOBOSO

Application submitted

Capsicum annuum L. · Bell pepper

RAMIRO ARNEDO, S.A.

1 record

Toska

Terminated

Cucumis sativus L. · Cucumber

Domaine Public (FR)

1 record

TT 506

Active

Cichorium intybus L. · Chicory

T&T VEGETABLE SEEDS S.R.L.

1 record

Tronka F1

Active

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

Muzhylko Dmytro Valentynovych, Dymchenko Tetiana Mykolaivna, Muzhylko Viktor Valentynovych,

2 records

Triton ISK

Terminated

Ribes nigrum L. · Blackcurrant

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

1 record

Tinos

Terminated

Vicia faba L. var. equina St.-Amans · Horse bean

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

1 record

Triperio F1

Application submitted

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

Sjaak van de Ploeg

2 records

Tolsma F1

Terminated

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

Nort Khadlier

2 records

Tigon

Application submitted

Spinacia oleracea L. · Spinach

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

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.