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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.

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Tilmor

Active

Hordeum vulgare L. · Barley

Danko Hodowla Roslin Sp.z.o.o.

PL
5 records

Thicket

Active

Lactuca sativa L. · Lettuce

Nunhems Netherlands B.V.

NL
10 records

Thamus

Active

Brassica oleracea L. (Brussels Sprouts Group) · Brussels sprouts

Syngenta Seeds B.V.

NL
3 records

Top kapi

Active

Cucurbita pepo L. · Field pumpkin

ES
3 records

Thorens

Active

Cucumis melo L. · Melon

Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)

FR
3 records

Temira

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

NL
6 records

Thalessa

Active

Solanum tuberosum L. · Potato

Heinrich Böhm

NL
6 records

Theo

Active

Rhododendron simsii Planch. · Indica azalea

Stahnke, Otto|Bromer Strasse 104, 38524 Sassenburg-Grussendorf, Federal Republic of Germany / Dettmer, Peter|Bromer Strasse 104, 38524 Sassenburg-Grussendorf, Federal Republic of Germany / Dettmer, Eleonore|Bromer Strasse 104, 38524 Sassenburg-Grussendo

DE
3 records

Taymyr

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Cucurbita pepo L. · Field pumpkin

A.L. Tozer Ltd (GB)

FR
3 records

Tarsier

Active

Spinacia oleracea L. · Spinach

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
3 records

Theda

Active

Solanum tuberosum L. · Potato

Europlant Innovation GmbH & Co. KG

DE
5 records

Tardilam

Active

Prunus avium (L.) L. · Sweet cherry

Maillard Laurence / Maillard Arsene

FR
6 records

Teragon

Terminated

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Takado

Active

Solanum lycopersicum L. · Tomato

Ikasido Global Group BV, NL

NL
3 records

Tecla

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Walther Faedi^^^Gianluca Baruzzi^^^Paolo Sbrighi^^^Pierluigi Lucchi

NL
5 records

Tilouka

Active

Cucumis melo L. · Melon

Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)

FR
4 records

Taipei

Active

Brassica oleracea L. (Broccoli Group) · Broccoli

Bayer Holland B.V.

NL
3 records

Tassili

Active

Capsicum annuum L. · Bell pepper

Clause Tezier, FR

FR
3 records

Prunus persica (L.) Batsch · Peach

Maillard Arsene / Maillard Laurence

FR
6 records

SVDC1978

Active

Daucus carota L. · Carrot

MONSANTO VEGETABLE IP MANAGEMENT B.V.

NL
3 records

Terrazzi

Active

Capsicum annuum L. · Bell pepper

HM.CLAUSE

FR
4 records

Solanum tuberosum L. · Potato

Teagasc Crops Research Department

IE
6 records

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