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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.

Don Lope

Active

Cucumis melo L. · Melon

RAMIRO ARNEDO, S.A.

ES
2 records

Domača rž

Active

Secale cereale L. · Rye

Franc Brodarič

SI
2 records

Dallas

Active

Spinacia oleracea L. · Spinach

Pop Vriend Research B.V.

NL
2 records

Delta

Active

Daucus carota L. · Carrot

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

PL
3 records

Delisun

Active

Solanum lycopersicum L. · Tomato

HM.Clause S.A.S.

FR
4 records

Cynder

Application submitted

Cucurbita pepo L. · Field pumpkin

SAKATA SEED AMERICA INC US

FR
2 records

Cupid Spirit

Active

Phalaenopsis Bl. · Moth Orchid

Schoone Rene

NL
3 records

Delfis

Active

Allium cepa L. · Onion

Holovchenko Roman Oleksandrovych,Holovchenko Oleksandr IAkovych,

UA
2 records

Cupidissimo

Active

Solanum lycopersicum L. · Tomato

HM.Clause S.A.S.

FR
3 records

Dekyen

Terminated

Chrysanthemum L. · Chrysanthemum

Nicolaas P. Dekker

NL
2 records

CTS4162

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

CT Sjeme d.o.o. (HR)

HR
2 records

Dee Scribe

Active

Cucumis sativus L. · Cucumber

Enza Zaden Beheer B.V.

NL
3 records

Declic

Active

Brassica rapa L. var. rapa (L.) Thell. · Turnip

Clause Tezier, FR

FR
2 records

Diva

Protection expired

Cichorium endivia L. · Endive

HILD WALTER| Walter Hild

DE
3 records

Debora

Active

Allium cepa L. var. cepa · Onion

INTERSEMILLAS SAU

ES
2 records

Dasfour

Protection expired

Aster L. · Aster

Gosen Berend Hugo Bartels

NL
2 records

Djeme

Terminated

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Clause (FR)

FR
2 records

Cristiano

Active

Cucumis melo L. · Melon

SEMILLAS FITO, S.A.

ES
2 records

Digital

Active

Cucumis melo L. · Melon

SEMILLAS FITO, S.A.

ES
3 records

Dezdemona

Active

Cucumis sativus L. · Cucumber

HORAL JIRI / ALEKSEEV YuRIJ BORISOVICh

UA
3 records

Cretasun

Active

Cucumis sativus L. · Cucumber

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
2 records

Cottonmouth

Application submitted

Spinacia oleracea L. · Spinach

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
2 records

Danova

Terminated

Brassica oleracea L. (Cauliflower Group) · Cauliflower

ERL. V. SCHELBECK

DK
3 records

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