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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

Found in these crops

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.

Drofa

Active

Helianthus annuus L. · Sunflower

ROTARU TUDOR GRIGOR'EVICh / ANAShchENKO ALEKSANDR VIKTOROVICh / ROTARU IGOR' FEDOROVICh / KETRAR ELENA NIKOLAEVNA

UA
4 records

Dusko

Protection expired

Capsicum annuum L. · Bell pepper

Nickerson Zwaan, NL

HU
3 records

Dragon

Active

Foeniculum vulgare Mill. · Fennel

Bejo Zaden B.V.

NL
4 records

Cucumis sativus L. · Cucumber

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Drollet

Active

Fagopyrum esculentum Moench · Buckwheat

Jean-Charles Renaudat (FR)

FR
3 records

Eltville

Active

Brassica oleracea L. (Kohlrabi Group) · Kohlrabi

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
3 records

Spinacia oleracea L. · Spinach

Syngenta Crop Protection AG

NL
6 records

Ditou

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

HM.CLAUSE

FR
3 records

Disko

Active

Spinacia oleracea L. · Spinach

Monsanto Vegetable IP Management B.V.

NL
5 records

Dohkko

Active

hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner

Syngenta Seeds B.V.

NL
4 records

E20S0102

Active

Capsicum annuum L. · Bell pepper

Wouter Lindeman

NL
3 records

Dunga

Active

Solanum lycopersicum L. · Tomato

Syngenta Seeds B.V.

NL
8 records

Duna

Active

Lactuca sativa L. · Lettuce

OLTER SRL

IT
4 records

Devon

Active

Cucurbita pepo L. · Field pumpkin

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
6 records

Dionis

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Vilmorin SA (FR)

FR
3 records

Daylos

Active

Solanum lycopersicum L. · Tomato

Syngenta Crop Protection AG

NL
4 records

Dino

Active

Solanum lycopersicum L. · Tomato

HM.CLAUSE

NL
3 records

Dawson

Active

Phaseolus vulgaris L. · Common bean

Holland-Select Research B.V.

NL
4 records

Deezer

Active

Phaseolus vulgaris L. · Common bean

Vilmorin-Mikado S.A.S.

FR
4 records

Prunus persica (L.) Batsch · Peach

Norman Glen Bradford (US)/Lowell Glen Bradford (US)

FR
6 records

Darbella

Active

Asparagus officinalis L. · Asparagus

SC Darbonne (FR)

FR
5 records

Danubio

Active

Cucumis melo L. · Melon

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Deuce

Active

Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage

TAKII & CO LTD

NL
3 records

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