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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.

Hilbechbli

Terminated

Dianthus caryophyllus L. · Carnation

HilverdaKooij B.V

2 records

Helena

Active

Ulmus laevis Pall. · European white elm

Bart van de Sluis

2 records

Galamic

Active

Malus domestica (Suckow) Borkh. · Apple

Jürgen Braun

3 records

Fujiko

Active

Malus domestica (Suckow) Borkh. · Apple

Michelangelo Leis^^^CARLO MAZZOLA

5 records

Jumann

Active

Cucurbita pepo L. · Field pumpkin

Seminis Vegetable Seeds

2 records

JOPU1WHI

Active

Chrysanthemum L. · Chrysanthemum

Luc Pieters

2 records

Jenkka

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Fresh Forward Holding B.V.

2 records

Kaluna

Active

Kalanchoe blossfeldiana Poelln. · Flaming Katy

Vlielander Ike J.|De Lier, NL

2 records

Hilbreduk

Active

Dianthus barbatus L. · Sweet William

Brea Ezio (Impresa Individuale)

2 records

H223903

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Hydrangea Breeders Association B.V.

2 records

Josina Elisabeth

Active

Narcissus L. · Daffodil

Q.C.W. van der Salm^^^B. J. van Kampen

2 records

Fisrix Whit

Active

Mandevilla boliviensis (Hook. f.) Woodson x Mandevilla sanderi (Hemsl.) Woodson

FISCHER GERMANY GMBH

2 records

Iniagrapone

Active

Vitis L. · Grapevine

MARIA CAROLINA UQUILLAS HERRERA

2 records

H223902

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Hydrangea Breeders Association B.V.

2 records

Florpeltlav

Active

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

ILSE FISCHER-TOEHL

2 records

Gustosa

Active

Ocimum basilicum L. · Basil

Nunhems Germany GmbH

2 records

Invebluvio

Active

Verbena L. · Vervain

Silvia Hofmann^^^Birgit Hofmann

2 records

IFPHLFC

Active

Phlox paniculata L. · Garden phlox

van den Haak Jelle

3 records

GRUSALRP

Active

Salvia x sylvestris L. · Wood sage

de Gruyter Andre

2 records

Illusionist

Active

Tulipa L. · Tulip

West-Friesland Tulpen B.V.

2 records

INSALGOSCA

Active

Salvia splendens Sellow ex Schult. · Scarlet sage

Silvia Hofmann

2 records

INLBUBLUPR

Terminated

Lobularia · Sweet alyssum

Wicki-Freidl Peter

2 records

HP221906

Active

Hydrangea paniculata Siebold · Panicled hydrangea

Hydrangea Breeders Association B.V.

2 records

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