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.

Tibo

Terminated

Vicia faba L. var. equina St.-Amans · Horse bean

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

PL
1 record

Solanum tuberosum L. · Potato

BOZESAN IONDRAICA CONSTANTINTOADER VIOREL

RO
1 record

Thor

Withdrawn

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

TROPICASEM (SN)

FR
1 record

Topscore

Active

Cichorium intybus L. · Chicory

Vilmorin SA (FR)

FR
1 record

Toproy

Active

Tulipa L. · Tulip

Vriend Cultures B.V.

NL
1 record

Tempo F1

Terminated

Cucumis melo L. · Melon

Angeles Maria

UA
1 record

Tempo F1

Withdrawn

Daucus carota L. · Carrot

Daniel Gabillard

UA
2 records

Tetona

Terminated

Spinacia oleracea L. · Spinach

SPERLING| Carl Sperling & Co. (GmbH & Co. KG)

DE
1 record

Tenorio F1

Terminated

Solanum lycopersicum L. · Tomato

Mercier Jean-Claude

UA
1 record

Tribeka F1

Terminated

Solanum lycopersicum L. · Tomato

Daniel Gabillard

UA
1 record

Solanum lycopersicum L. · Tomato

HM.CLAUSE

UA
1 record

Timion

Application submitted

Phaseolus vulgaris L. · Common bean

Syngenta Crop Protection AG

NL
2 records

Target F1

Terminated

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

Petr Klapshtie, Petr Horal, Yirzhi Horal,

UA
2 records

Taras

Terminated

Cucurbita pepo L. · Field pumpkin

Daniel Gabillard

UA
1 record

Teytum

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Innova Seeds Co.

UA
1 record

Tasha F1

Terminated

Solanum lycopersicum L. · Tomato

Moshe Zalsman

UA
2 records

TESTUDO

Application submitted

Capsicum annuum L. · Bell pepper

RAMIRO ARNEDO, S.A.

ES
1 record

Tomazhio

Terminated

Solanum lycopersicum L. · Tomato

Kees Konst

UA
2 records

TERTHERMO

Withdrawn

Gerbera jamesonii Bolus ex Hook. f. · Barberton daisy

Terra Nigra BV (NL)

FR
1 record

T&T 4050

Active

Cichorium intybus L. · Chicory

T&T VEGETABLE SEEDS S.R.L.

IT
1 record

Toldo

Active

Dianthus L. · Carnation

BARATTA AGOSTINO

IT
1 record

Tamara

Terminated

Cucumis melo L. · Melon

Erron Yaggard

UA
1 record

TERENUM

Active

Cucurbita pepo L. · Field pumpkin

ANTONIO RODRIGUEZ

UA
2 records

Symfonia

Terminated

Petunia x hybrida hort. ex E. Vilm. · Garden petunia

Krakowska Hodowla i Nasiennictwo Ogrodnicze POLAN sp. z o.o.

PL
1 record

Jump to page 49 99 148 169 197 246 259 279 296