Skip to content
agronom.cc cultivar database

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.

IFHESBS

Active

Heuchera L. · Coral Flower

Spil Glenn

2 records

KLEBF24933

Application submitted

Bidens ferulifolia (Jacq.) DC. · Apache beggartick

Alfred Brause

2 records

IFANFRAP

Active

Anemone hupehensis Lemoine · Japanese anemone

Spil Glenn

2 records

KLEPH08171

Active

Petunia Juss. · Petunia

NILS KLEMM|ANITA STOEVER

2 records

KLEDP18090

Withdrawn

Dianthus caryophyllus L. · Carnation

Klemm + Sohn GmbH & Co. KG^^^Nils Klemm^^^Lena Thiede

2 records

HP221905

Active

Hydrangea paniculata Siebold · Panicled hydrangea

Hydrangea Breeders Association B.V.

2 records

KLECA17399

Active

Calibrachoa Cerv. · Calibrachoa

Anita Stöver

2 records

Lagoon

Terminated

Hippeastrum Herb. · Amaryllis

Ben van Geest

2 records

Kinepor

Active

Impatiens New Guinea Group · New Guinea Impatiens

Ludwig Kientzler

2 records

HORT05

Active

Rhododendron simsii Planch. · Indica azalea

Hortibreed N.V.

2 records

HN3815BBS

Active

Helleborus niger L. · Christmas rose

Friederike von Rundstedt

2 records

Kaiser

Terminated

Gerbera L. · Gerbera

Schreurs, P.

2 records

KORglolev

Active

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

2 records

Hilfygi

Terminated

Dianthus caryophyllus L. · Carnation

HilverdaKooij B.V

2 records

Hilbrebar

Active

Dianthus barbatus L. · Sweet William

Brea Ezio (Impresa Individuale)

2 records

IFHERB

Active

Heuchera L. · Coral Flower

van den Haak Jelle

2 records

IVC AN1

Active

Vitis vinifera L. · Common grape vine

FIDEGHELLI Carlo,PIROLO Costantino Silvio

2 records

INVEBCARKI

Active

Verbena L. · Vervain

Birgit Hofmann

2 records

KLEPH14248

Active

Petunia Juss. · Petunia

Nils Klemm^^^Antonella Capo

2 records

Irmin

Terminated

Kalanchoe blossfeldiana Poelln. · Flaming Katy

ANDREAS SMAAL

2 records

KLEDP22471

Active

Dianthus caryophyllus L. · Carnation

Thiede Lena

2 records

Hilswebla

Active

Gerbera L. · Gerbera

HilverdaFlorist B.V.

2 records

Jump to page 49 99 120 148 197 210 230 246 296 320