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.

Jenga

Active

Cucumis melo L. · Melon

Gautier Semences SAS (FR)

2 records

Kilates

Terminated

Solanum lycopersicum L. · Tomato

ZERAIM GEDERA

2 records

Kiara R

Application submitted

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

HM.CLAUSE

2 records

Kier

Active

Vicia faba L. var. major Harz · Broad bean

W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O

3 records

Kinino

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

4 records

Jasper Ors

Active

Cucumis melo L. · Melon

Dr Eyal Vardi

2 records

Kier

Active

Beta vulgaris Garden Beet Group · Garden beet

Hodowla Roslin Snowidza Sp.z.o.o

3 records

Kepo

Active

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

Syngenta Crop Protection AG

3 records

Jamaica

Active

Solanum tuberosum L. · Potato

Kweek- en Researchbedrijf Agrico B.V.

3 records

Jolante PZO

Active

Glycine max (L.) Merr. · Soybean

Stephanie Franck

3 records

Izolda

Active

Pisum sativum L. · Pea

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

2 records

Kebella

Terminated

Lactuca sativa L. · Lettuce

Monsanto Vegetable IP Management B.V.

3 records

Keyah

Active

Brassica oleracea L. (Kohlrabi Group) · Kohlrabi

Enza Zaden Beheer B.V.

2 records

Jonás

Active

Capsicum annuum L. · Bell pepper

RAMIRO ARNEDO, S.A.

2 records

KBN117

Active

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

THE KIBAN

2 records

Katmandu

Active

Capsicum annuum L. · Bell pepper

Syngenta Seeds B.V.

2 records

Kenety

Active

Solanum lycopersicum L. · Tomato

HAZERA SEEDS BV

3 records

Katinka

Terminated

Saintpaulia ionantha H. Wendl. · African violet

HARKES PETER A.A.

2 records

Istr

Active

Hordeum vulgare L. · Barley

Lehkun Ihor Borysovych, Perekhrest Valentyna Arkhypivna, Tarasiuk Vasyl Prokopovych, Babash Andrii Borysovych, Linchevskyi Anatolii Adamovych,

3 records

Janie

Protection expired

Tagetes patula L. · French marigold

GOLDSMITH SEEDS

2 records

Jawor

Active

Solanum lycopersicum L. · Tomato

Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa w Ozarowie Mazowieckim Spolka z o.o.

2 records

Jacinto

Active

Daucus carota L. · Carrot

Pop Vriend Research B.V.

2 records

Kasjer

Active

Vicia faba L. var. major Harz · Broad bean

P.P.H.U. OGRODNIK DARIUSZ NOWICKI

2 records

Jarlsberg

Withdrawn

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.