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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.

Snow Compass

Active

Phalaenopsis Bl. · Moth Orchid

René Schoone

2 records

RYN2013021

Active

Anthurium-Andreanum-Hybriden · Anthurium

Dümmen Group B.V.

2 records

SUNSA131

Terminated

Dianthus caryophyllus L. · Carnation

HilverdaKooij B.V

2 records

SPCDW0704

Active

Vanda Jones ex R. Br. · Vanda

Thumrong Suphachadiwong

2 records

SAXZ0012

Active

Saxifraga x arendsii Engl. · Arends saxifrage

Syngenta Participations AG

2 records

Stargazer White

Active

Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia

FLOREMA YOUNG PLANTS B.V.^^^Agriom B.V.

2 records

Sunbeam

Active

Solanum tuberosum L. · Potato

ROBERT JOHN CHERRY

4 records

Sumipas 02

Active

Dimorphotheca ecklonis DC. · Trailing African daisy

Schrader Ralf|D-59348 Ludinghausen, DE

2 records

Sophie

Active

Nasturtium microphyllum Boenn. ex Rchb. · one-row watercress

Hermann-Josef Wilhelm

2 records

SOGO F2806

Terminated

Phalaenopsis Bl. · Moth Orchid

Chiang-Kuei Feng

2 records

Storyline

Active

Phalaenopsis Bl. · Moth Orchid

Schoone Rene

2 records

SIL Baldo

Active

Pelargonium zonale (L.) L'Hér. · Horseshoe pelargonium

ILSE FISCHER-TOEHL

2 records

SAKOST8079

Active

Osteospermum L. · Osteospermum

Sakata Ornamentals Europe A/S

2 records

Saintlouis

Terminated

Chrysanthemum L. · Chrysanthemum

Wendy Bergman

2 records

SPCDW1204

Active

Vanda Jones ex R. Br. · Vanda

SUPHACHATWONG INNOVATION CO

2 records

SAXZ0011

Active

Saxifraga x arendsii Engl. · Arends saxifrage

Syngenta Crop Protection AG

2 records

Sene Gosigore

Active

Pericallis x hybrida (Scheidw.) B. Nord. · Cineraria

Tomoya Misato, Kiyoshi Miyazaki

2 records

RIJNBO705

Protection expired

Bougainvillea Comm. ex Juss. · Bougainvillea

RijnPlant B.V.

2 records

SAKZIN012

Active

Zinnia x marylandica D. M. Spooner et al.

Sakata Ornamentals Europe A/S

2 records

SAKOST8174

Active

Osteospermum L. · Osteospermum

Sakata Ornamentals Europe A/S

2 records

Poulty054

Active

Rosa L. · Rose

Poulsen Roser A/S

2 records

Poulty040

Active

Rosa L. · Rose

Poulsen Roser A/S

2 records

Regvel

Active

Pelargonium grandiflorum (Andrews) Willd. · Regal pelargonium

Olbricht Klaus|Dresden, DE

2 records

Ruikenre

Active

Rosa L. · Rose

Pouw Antonius A.

2 records

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