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.

Ronvine

Active

Solanum lycopersicum L. · Tomato

Pascal Wanten

7 records

Roadster

Active

Lolium perenne L. · Perennial ryegrass

BLUE MOON FARMS

5 records

Roma Seedless

Active

Vitis vinifera L. · Common grape vine

Maranto Joseph|Bakersfield, CA, US

5 records

Rescue

Active

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

SYNGENTA SEEDS B.V.

6 records

Rhonda

Active

Beta vulgaris Garden Beet Group · Garden beet

BEJO ZADEN

5 records

Regor

Active

Spinacia oleracea L. · Spinach

Philip Simons

6 records

Pure Distinction

Active

Agrostis stolonifera L. · Creeping bentgrass

PURE SEED TESTING

7 records

Principe

Active

Brassica oleracea L. (Broccoli Group) · Broccoli

HM Clause SA (FR)

5 records

Prodigio

Active

Lactuca sativa L. · Lettuce

Syngenta Seeds B.V.

11 records

POULfiry

Terminated

Rosa L. · Rose

Poulsen Roser A/S

5 records

Prado

Active

Cucumis sativus L. · Cucumber

BEJO ZADEN

6 records

PHCJP

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

5 records

Pleasance

Active

Lactuca sativa L. · Lettuce

Bejo Zaden, NL

6 records

Patagonia

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

7 records

Patrona

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

8 records

Pacpisyb

Active

Pelargonium peltatum (L.) L'Hér. · Ivy-leaf geranium

Martin Geibel

5 records

p061103

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Vissers America B.V., NL

7 records

Operino

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

7 records

Orchestro

Active

Daucus carota L. · Carrot

Vilmorin, F

5 records

Obama

Active

Solanum tuberosum L. · Potato

SELECTIEBEDRIJF KOOI

8 records

Nun 4011

Active

Cynara cardunculus L. · Cardoon

Nunhems, B.V.

7 records

Nunton

Active

Allium porrum L. · Leek

Nunhems B.V., Nunhems B.V.

10 records

Narita

Active

Daucus carota L. · Carrot

Bejo Zaden, NL

6 records

Novero

Active

Solanum lycopersicum L. · Tomato

Seminis Vegetable Seeds

6 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.