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.

Polyfine

Terminated

Allium schoenoprasum L. · Chives

Nunhems Germany GmbH

4 records

Polka

Terminated

Daucus carota L. · Carrot

Krakowska Hodowla i Nasiennictwo Ogrodnicze POLAN sp. z o.o.

2 records

Pizzullo

Active

Capsicum annuum L. · Bell pepper

LA SEMIORTO SEMENTI SRL

2 records

Piel de Sol

Active

Cucumis melo L. · Melon

Enza Zaden Beheer B.V.

3 records

Pisa

Active

Allium cepa L. var. cepa · Onion

RAMIRO ARNEDO, S.A.

2 records

Piotta

Active

Cucurbita pepo L. · Field pumpkin

HM.Clause S.A.S.

3 records

Pobler

Active

Solanum lycopersicum L. · Tomato

Hort Seed Mediterrani S.L

3 records

Plessis

Active

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

Clause Tezier, FR

2 records

Pink Bisou

Active

Solanum lycopersicum L. · Tomato

TAKII & CO LTD

3 records

Piibe

Terminated

Solanum lycopersicum L. · Tomato

Pille Sooväli 90%, Kaljo Kask 10%

3 records

Pixar

Active

Cucurbita pepo L. · Field pumpkin

Gautier Semences SAS (FR)

2 records

Pattymat

Active

Cucurbita pepo L. · Field pumpkin

UNITED GENETICS SEEDS CO

2 records

Pitagora

Active

Solanum lycopersicum L. · Tomato

Sais SPA, I

2 records

Pirineos

Active

Allium cepa L. var. cepa · Onion

Enza Zaden Beheer B.V.

2 records

Pasja

Active

Raphanus sativus L. var. sativus · Radish

Instytut Warzywnictwa im. Emila Chroboczka \Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa Spółka Akcyjna w upadłości likwidacyjnej \Polska Hodowla i Nasiennictwo Roślin Ogrodniczych IWARZ-PNOS sp. z o.o.

3 records

Pionier

Terminated

Pisum sativum L. · Pea

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

2 records

Piattaforone

Active

Prunus persica (L.) Batsch · Peach

Alessandro Liverani^^^Daniela Giovannini

3 records

Pearlgem

Active

Cucumis melo L. · Melon

Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)

3 records

Picasso

Active

Cucurbita pepo L. · Field pumpkin

CORA SEEDS S.R.L

2 records

Patrol

Active

Capsicum annuum L. · Bell pepper

HAZERA SEEDS BV

2 records

Phaedra

Active

Gossypium hirsutum L. · Upland cotton

Geoponiko Spiti - Lokas SMLLC (GR)

2 records

Palaos

Active

Spinacia oleracea L. · Spinach

Seminis Vegetable Seeds

4 records

Paskualeto

Active

Solanum lycopersicum L. · Tomato

Syngenta Seeds B.V.

4 records

Palermo Roler

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel 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.