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.

Auxkar

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

3 records

Bila

Active

Allium cepa L. var. cepa · Onion

PlantiCo Zielonki Sp. z o.o.

3 records

Violet star

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

LA SEMIORTO SEMENTI SRL

2 records

Alindi 811

Terminated

Solanum lycopersicum L. · Tomato

Kees Konst

NL UA

3 records

Vanuatu

Active

Capsicum annuum L. · Bell pepper

Enza Zaden Beheer B.V.

4 records

Viggo

Active

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

4 records

Udine

Active

Capsicum annuum L. · Bell pepper

INTERSEMILLAS SAU

2 records

Amarou

Terminated

Gerbera jamesonii Bolus ex Hook. f. · Barberton daisy

Florist De Kwakel B.V. Gerbera Kulturen

HU PL

2 records

Toutatis

Active

Cucumis melo L. · Melon

Syngenta Crop Protection AG, CH

2 records

Valeoso

Active

Cucumis melo L. · Melon

HM Clause SA (FR)

2 records

Uniarco

Active

Solanum lycopersicum L. · Tomato

UNIGENIA SEMILLAS, S.L.U.

2 records

Apollo

Protection expired

Acer platanoides L. · Norway maple

Dr. Sven M.G. de Vries c/o Institut for Forestry and Nature Research

DE NL

2 records

Yellow Bite

Active

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

Syngenta Crop Protection AG

3 records

Signora

Active

Allium porrum L. · Leek

Hazera Seeds B.V.

4 records

Sicybelle

Application submitted

Solanum lycopersicum L. · Tomato

Syngenta Crop Protection AG

3 records

Alexa

Active

Gossypium hirsutum L. · Upland cotton

ALSBROOK Ltd (Cyprus)

BG GR

2 records

Scarlet

Active

Solanum tuberosum L. · Potato

Sloots Aardappelkweekbedrijf B.V.

5 records

Vayana

Active

Solanum lycopersicum L. · Tomato

Takii and Co Ltd (JP)

2 records

Undira

Active

Phaseolus vulgaris L. · Common bean

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

3 records

TXECO

Application submitted

Capsicum annuum L. · Bell pepper

SAKATA VEGETABLES EUROPE SAS

2 records

Sereen

Active

Solanum lycopersicum L. · Tomato

Syngenta Seeds B.V.

3 records

Sanggat

Protection expired

Sorghum bicolor (L.) Moench subsp. bicolor · Sorghum

R 2n (FR)

2 records

SV5215TD

Active

Solanum lycopersicum L. · Tomato

Monsanto Vegetable Management, NL

3 records

Stacker

Terminated

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

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.