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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.

Zea mays L. subsp. mays (Maize Group) · Maize

Monsanto Technology LLC, US

FR
2 records

Ivex

Application submitted

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Bayer Holland B.V.

NL
3 records

Irene

Active

Allium cepa L. var. cepa · Onion

INTERSEMILLAS SAU

ES
2 records

Irazu

Active

Beta vulgaris Garden Beet Group · Garden beet

Bejo Zaden B.V.

NL
3 records

IPK Deni

Terminated

Triticum durum Desf. · Durum wheat

Shenko Yanev

BG
3 records

Istar

Active

Cynara cardunculus L. · Cardoon

LA SEMIORTO SEMENTI SRL

IT
2 records

HOG1701

Active

Phlox paniculata L. · Garden phlox

Hogenboom Phloxen B.V.

NL
3 records

Allium cepa L. var. cepa · Onion

EM Key & Son Ltd (GB)

FR
2 records

Solanum lycopersicum L. · Tomato

HEINZSEED

PT
3 records

Honorio

Active

Cucumis melo L. · Melon

MERIDIEM SEEDS S.L.

ES
2 records

Isbilya

Active

Solanum lycopersicum L. · Tomato

MERIDIEM SEEDS S.L.

ES
2 records

Isabel

Active

Capsicum annuum L. · Bell pepper

RAMIRO ARNEDO, S.A.

ES
2 records

Irys

Active

Solanum tuberosum L. · Potato

Pomorsko Mazurska Hodowla Ziemniaka Sp.z o.o. z siedziba w Strzekecinie

PL
2 records

Incus

Active

Allium porrum L. · Leek

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
2 records

Incanto

Active

Lactuca sativa L. · Lettuce

BLUMEN GROUP S.P.A

IT
2 records

He Wolf

Terminated

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

NL
2 records

IPS16121

Active

Prunus armeniaca L. · Apricot

Marie-France Bois

FR
3 records

Insignia

Active

Capsicum annuum L. · Bell pepper

HAZERA SEEDS BV

ES
3 records

Heredero

Application submitted

Solanum lycopersicum L. · Tomato

HAZERA SEEDS BV

ES
2 records

Ingenyo

Active

Capsicum annuum L. · Bell pepper

Vilmorin-Mikado SAS (FR)

FR
3 records

Indurain

Active

Cucumis melo L. · Melon

SEMILLAS FITO, S.A.

ES
2 records

Impresja

Active

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
6 records

Idole

Active

Lactuca sativa L. · Lettuce

Syngenta Crop Protection AG

NL
4 records

Imperoso

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
3 records

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