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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.

Dochryspur

Active

Chrysanthemum L. · Chrysanthemum

Dümmen Group B.V.

2 records

Dochrybrewhi

Active

Chrysanthemum L. · Chrysanthemum

Dümmen Group B.V.

2 records

COSEH 6600

Active

Helleborus L. · Christmas Rose

Josef Heuger

2 records

DP 396

Active

Gossypium L. · Cotton

2 records

DLFEVID1

Active

Chrysanthemum L. · Chrysanthemum

Arie Gerard Post

3 records

Don Alano

Active

Kalanchoe blossfeldiana Poelln. · Flaming Katy

Leonardus J. M. van der Knaap

3 records

Doibexwhi

Active

Iberis sempervirens L. · Evergreen candytuft

van Sambeek Ellen

2 records

BO 88617102

Active

Prunus armeniaca L. · Apricot

Daniele Bassi

3 records

Dohkko

Active

Solanum lycopersicum x Solanum pimpinellifolium · Tomato

Syngenta Crop Protection AG

2 records

Dofall

Terminated

Verbena L. · Vervain

Bersford Jobling

2 records

CIVN223

Terminated

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Michelangelo Leis

2 records

DLAVENLPOP

Active

Lavandula stoechas L. · French lavender

Gavriel Danziger

2 records

Catu 1915

Active

Catharanthus roseus (L.) G. Don · Madagascar periwinkle

Tomomatsu Koichi,Taychasinpitak Thunya,Suzuki Kenichi

2 records

Dapadpor

Terminated

Dahlia Cav. · Dahlia

PanAmerican Seed Europe B.V.

2 records

Captain Morgan

Active

Zantedeschia Spreng. · Arum-lily

Kapiteyn Breeding B.V.

2 records

Catu 1917

Active

Catharanthus roseus (L.) G. Don · Madagascar periwinkle

Tomomatsu Koichi,Taychasinpitak Thunya,Suzuki Kenichi

2 records

BKPBECLR

Active

Begonia x hiemalis Fotsch · Elatior Begonia

Beekenkamp Annie Cornelia

2 records

DANALON5

Active

Angelonia angustifolia Benth. · Angelonia

Gavriel Danziger

2 records

Barberta

Terminated

Dianthus caryophyllus L. · Carnation

Emilio Cano

2 records

Dekaurelia

Terminated

Chrysanthemum L. · Chrysanthemum

Cornelis W. Dekker

2 records

C8

Active

Prunus cerasifera Ehrh. x P. persica (L.) Batsch · Myrobalan x Peach

Research Institute For Fruit Growing Pitesti - Maracineni

3 records

Burgandy

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

2 records

Couhacinq

Active

Hydrangea paniculata Siebold · Panicled hydrangea

Lilaveronica S.A.R.L.

2 records

BullRudi 11

Active

Rudbeckia hirta L. · Black-eyed Susan

Hartwig Bull

2 records

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