Skip to content

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.

Prunus persica (L.) Batsch · Peach

Laurence Maillard, Arsene Maillard

FR
9 records

Bravura

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Suiker Marcel

NL
9 records

Bitsyoac

Active

Olea europaea L. · Olive

MARISA CUNILL / SALVADOR DURAN

ES
10 records

Allium fistulosum L. · Welsh onion

Seminis Vegetable Seeds

NL
8 records

Anivia

Active

Solanum tuberosum L. · Potato

R.P.GRAVELAND

NL
9 records

Vitis L. · Grapevine

Timothy P.Sheehan

7 records

Malus domestica (Suckow) Borkh. · Apple

Tallawang Trust, Michael R Staples and Jennifer R. Staples Trustees

8 records

Rosa L. · Rose

Poulsen Roser AS, DK - 3480 Fredensborg

7 records

Vaccinium L. · Bilberry

RIDLEY WILLIAM BELL

8 records

Phalaenopsis Bl. · Moth Orchid

Van Swieten Martinus Nicolaas Gerardus

7 records

Rosa L. · Rose

Poulsen Roser ApS, Poulsen Roser ApS

7 records

Begonia x hiemalis Fotsch · Elatior Begonia

LUBBERTUS H.KOPPE

7 records

Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia

Zerr Katharina

7 records

Eclipse

Active

Rubus L. subg. Rubus · Blackberry

United States Department of Agriculture-ARS HCRL

7 records

Gypsophila L. · Baby's breath

Hooijman Aloysius A. J.|Aalsmeer, NL

7 records

Messina

Active

Hordeum vulgare L. · Barley

SAATBAU LINZ EGEN

AT HU SK UA
11 records

Helianthus annuus L. · Sunflower

Syngenta Participations AG c/o Syngenta International AG

AT HU IT PT
9 records

Praktik

Active

Triticum aestivum L. · Bread wheat

RAGT R2n sas, FR-12033 Rodez Cedex 9

PL SE UA
11 records

Alvesta

Active

Glycine max (L.) Merr. · Soybean

Saatzucht Donau, A

AT CZ UA
9 records

Pétula

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)

CZ FR HR NL SK
8 records

Lateman

Protection expired

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Bejo Zaden B.V.

CZ NL PL SI SK
7 records

Oriolus

Active

Brassica napus L. · Rapeseed

Deutsche Saatveredelung AG,DE

BG EE HU LT SK UA
6 records

Vigorex

Active

Cucumis sativus L. · Cucumber

Syngenta Seeds B.V.

CZ HU NL PL SK
7 records

Strukton

Active

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

Hazera Seeds B.V.

CZ HU NL PL SK
7 records

Jump to page 8 28 49 99 118 148 197 246 296