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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.

ToscaQ488

Active

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

Floha V.O.F

2 records

VEAZ0008

Terminated

Verbena L. · Vervain

Syngenta Crop Protection AG

2 records

Trick Yellow

Active

Delphinium L. · Larkspur

Teruo Kawaura

2 records

TOSTD0188

Active

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

Monte-Michielsen Fabienne

2 records

Stellar Red

Protection expired

Callistephus chinensis (L.) Nees · China aster

Seki Akio|Kumagai Saburo

2 records

UF19-79-2

Active

Plectranthus scutellarioides (L.) R. Br. · Coleus

David G. Clark

2 records

TSAECH1709

Active

Echeveria lilacina Kimnach & R. C. Moran x Echeveria pulidonis E. Walther

Tosjami B.V.

2 records

Tinto

Active

Eucalyptus globulus Labill. · Tasmanian blue gum

Grupo Empresarial Ence S.A.

2 records

Special Rider

Active

Tulipa L. · Tulip

Johannes Cornelis Jozef Ruiter Wever

2 records

SUNSC129

Terminated

Dianthus caryophyllus L. · Carnation

HilverdaKooij B.V

2 records

SUNJON 008

Active

Nemesia Vent. · Nemesia

JIMMY JONES

2 records

SUMCALI 02

Terminated

Calibrachoa Cerv. · Calibrachoa

Ralf Schräder

2 records

STO3

Active

Prunus cerasus L. x (Prunus avium L. x Prunus canescens Bois)

Stoppel Peter

2 records

SIL Sören

Active

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

ILSE FISCHER-TOEHL

2 records

Sicardo White

Active

Chrysanthemum L. · Chrysanthemum

PARATY B.V.B.A

2 records

Terhertz

Terminated

Gerbera L. · Gerbera

Terra Nigra Holding b.v

2 records

Serenade Light Blue

Protection expired

Callistephus chinensis (L.) Nees · China aster

Sakata Seed Corporation (SCC)

2 records

SPCDW1712

Active

Vanda Jones ex R. Br. · Vanda

Thumrong Suphachadiwong

2 records

SOGO F3763

Active

Phalaenopsis Bl. · Moth Orchid

Chiang-Kuei Feng

2 records

Scheshmo

Terminated

Rosa L. · Rose

Piet Schreurs Holding B.V.

2 records

Sunseneyona

Active

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

Tomoya Misato

2 records

Spamei

Active

Spathiphyllum Schott · Spathiphyllum

van der KNAAP LEONARDUS JOHANNES MARIA

2 records

STO2

Active

Prunus cerasus L. x (Prunus avium L. x Prunus canescens Bois)

Stoppel Peter

2 records

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