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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.

Tesbay

Terminated

Alstroemeria L. · Alstroemeria

Horti Partners V.O.F.

1 record

Tori

Terminated

Kalanchoe Adans. · Kalanchoe

Knud Jepsen A/S

1 record

White Ball

Terminated

Campanula L. · Bellflower

ANDERSEN JØRGEN K., Carl Aksel Kragh Sørensen, BRANDT KIRSTEN

1 record

Tango

Active

Humulus lupulus L. · Common hop

Anton Lutz

1 record

Sunsenebabu

Terminated

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

Kiyoshi Miyazaki

1 record

Tecdobgre

Withdrawn

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

GERAFLOR

1 record

Suntapipipa

Terminated

Verbena L. · Vervain

NAOTO TAKAMURA

1 record

TOSTC0274

Active

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

Floha V.O.F

1 record

TOSTB1418

Terminated

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

Floha V.O.F

1 record

Sunmandetomi

Terminated

Mandevilla sanderi (Hemsl.) Woodson · Brazilian jasmine

Tomoya MISATO, Yasuyuki Murakami

1 record

Talpa

Terminated

Tulipa L. · Tulip

Hybris B.V.

2 records

Tapestry

Terminated

Rhododendron simsii Planch. · Indica azalea

GLICENSTEIN LEON

1 record

Sumnem 03

Terminated

Nemesia Vent. · Nemesia

Ralf Schräder

1 record

Supasurprise

Terminated

Argyranthemum frutescens (L.) Sch. Bip. · Marguerite daisy

Daniel Bede McDonald

1 record

Tessy

Terminated

Dahlia Cav. · Dahlia

PanAmerican Seed Europe B.V.

1 record

Star Waltz

Terminated

Delphinium x belladonna hort. ex Bergmans · Belladonna delphinium

Kimitoshi Sakaguchi

1 record

Sturni RS

Active

Vitis vinifera L. · Common grape vine

Donato Antonacci

1 record

SUNRO128

Terminated

Dianthus caryophyllus L. · Carnation

HilverdaKooij B.V

1 record

Spamoco

Active

Spathiphyllum Schott · Spathiphyllum

Timothy J.H. Hoogkamp

1 record

Staviski Yellow

Terminated

Chrysanthemum L. · Chrysanthemum

PARATY B.V.B.A

1 record

SUNPE 2271

Terminated

Petunia Juss. · Petunia

Suntory Flowers

1 record

South Point

Terminated

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

1 record

Sibil

Active

Kalanchoe Adans. · Kalanchoe

Knud Jepsen A/S

1 record

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