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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.

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

Siiak van der Ploh

UA
1 record

Jersey Knight

Terminated

Asparagus officinalis L. · Asparagus

The State University of New Jersey - Rutgers (US)

FR
1 record

Arctium lappa L. · Greater burdock

Doslidna stantsiia "Maiak" Instytutu ovochivnytstva i bashtannytstva Natsionalnoi akademii ahrarnykh

UA
2 records

Jakady

Application submitted

Lactuca sativa L. · Lettuce

Gautier Semences SAS (FR)

FR
1 record

Hurricane F1

Application submitted

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

Her Bemsdeburh

UA
2 records

Hunor

Active

Platycladus orientalis (L.) Franco · Oriental arborvitae

Nagy Zsolt

HU
2 records

Hrand Etalon

Terminated

Allium cepa L. · Onion

Holovchenko Roman Oleksandrovych,Holovchenko Oleksandr IAkovych,

UA
2 records

Malus domestica (Suckow) Borkh. · Apple

Homeniuk Svitlana Viktorivna, Chupryniuk Viktor IAkovych,

UA
2 records

Iweta

Terminated

Pisum sativum L. · Pea

Przedsiębiorstwo Hodowli Roślin Ogrodniczych Pawłowice Grójeckie

PL
1 record

Phaseolus vulgaris L. · Common bean

Korzh Zoia Vasylivna, Kandaurova Klavdiia Fedorivna, Kulinich Oleksii Oleksandrovych, Klysha Andrii Ivanovych,

UA
2 records

HIGAMA

Terminated

Prunus persica (L.) Batsch · Peach

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR
1 record

HONOLULU

Application submitted

Cucumis melo L. · Melon

SEMILLAS FITO, S.A.

ES
1 record

Brassica oleracea L. (Broccoli Group) · Broccoli

Hari Besels

UA
1 record

Hermès

Terminated

Cichorium intybus L. · Chicory

Hoquet Graines (FR)

FR
1 record

Helios

Terminated

Cichorium intybus L. · Chicory

Hoquet Endives (FR)

FR
1 record

HEIRLOOM

Terminated

Chrysanthemum indicum L. · Indian chrysanthemum

MEEK M. JACK (FR)/William E. DUFFETT (US)

FR
1 record

Illumine

Application submitted

Cichorium intybus L. · Chicory

Vilmorin-Mikado SAS (FR)

FR
1 record

HAWAI

Application submitted

Cucumis melo L. · Melon

RAMIRO ARNEDO, S.A.

ES
1 record

Hedi

Withdrawn

Hordeum vulgare L. · Barley

I.G. SAATZUCHT| I.G. Saatzucht GmbH & Co. KG

DE
1 record

Idola

Withdrawn

Gladiolus L. · Gladiolus

Firma K. en K. Gootjes

NL
1 record

Ideal

Terminated

Beta vulgaris L. · Beet

Danisco Seed Austria Ges.m.b.H.

AT
1 record

ICEBAZAAR

Application submitted

Lactuca sativa L. var. crispa L. · Leaf lettuce

Hellie Dodson

UA
2 records

Hitomax

Active

Solanum lycopersicum L. · Tomato

Shevchenko Ihor Andriiovych

UA
2 records

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