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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.

Shanty

Terminated

Gerbera jamesonii Bolus ex Hook. f. · Barberton daisy

Florist De Kwakel B.V. Gerbera Kulturen

PL
1 record

Sheval`ie F1

Terminated

Solanum lycopersicum L. · Tomato

Scherbatiuk Hanna Ihorivna, Skipenko Oleksii Leonidovych, Hurin Maksym Viktorovych, Kuz`omens`kyi Oleksandr Volodymyrovych,

UA
2 records

Smuhlianka

Terminated

Lactuca sativa L. var. capitata L. · Head lettuce

Leschuk Nadiia Vasylivna, Pozniak Oleksandr Vasyl`ovych, Kryvets` Dmytrii Olehovych, Sych Zenovii Deonyzovych, Skrypka Alla Ivanivna, Zhovner Ivan Mykhailovych, Zhuravl`ova Ol`ha Mykolaivna,

UA
2 records

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Hari Besels

UA
1 record

Sister Jo

Terminated

Rhododendron simsii Planch. · Indica azalea

HEINZ MANTEN

DE
1 record

Signale

Active

Lactuca sativa L. · Lettuce

Gautier Semences SAS (FR)

FR
1 record

Sendai

Active

Tulipa L. · Tulip

Marax Tulips V.O.F.

NL
1 record

SERAFINA

Application submitted

Solanum melongena L. · Eggplant

RAMIRO ARNEDO, S.A.

ES
2 records

SE5414

Active

Zea mays L. · Maize

Syngenta Crop Protection AG

IT
1 record

Semko IUvileinyi 217 F1

Application submitted

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

Suddenko Viktor Hryhorovych, Patsuriia Dzheneri Volodymyrovych, Monakhos Hryhorii Fedorovych, Kriuchkov Anatolii Vasyl`ovych, Aleksieiev IUryi Borysovych,

UA
1 record

Seleto

Application submitted

Solanum lycopersicum L. · Tomato

HM Clause SAS (FR)

FR
1 record

Segovia

Application submitted

Phaseolus vulgaris L. · Common bean

Holland-Select Research B.V.

NL
2 records

Serenity

Withdrawn

Lolium perenne L. · Perennial ryegrass

Hagen Ledeboer

DE
2 records

Semko IUvileinyi

Application submitted

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

Aleksieiev IUrii Borysovych, Sudenko Vasyl` Hryhorovych, Patsuriia Dzheneri Volodymyrovych, Monakhov Hryhorii Fedorovych, Kriuchkov Anatolii Vasyl`ovych,

UA
1 record

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

Nort Khadlier

UA
1 record

Raphanus sativus L. · Radish

MINISTERO DELLE POLITICHE AGRICOLE E FORESTALI - DIREZIONE GENERALE DELLE POLITICHE AGRICOLE ED AGROINDUSTRIALI NAZIONALI

IT
1 record

SARABI

Application submitted

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

HAZERA SEEDS BV

ES
1 record

Shoreline

Application submitted

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

Bayer Holland B.V. (NL)

FR
1 record

Shkiper F1

Application submitted

Solanum lycopersicum L. · Tomato

Francisco Avila

UA
2 records

Sati F1

Terminated

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

Gerard Balder

UA
1 record

San Remo

Active

Tulipa L. · Tulip

Fa. A. en L. Duin

NL
1 record

Sapiro Yellow

Terminated

Chrysanthemum x morifolium Ramat. · Florist's daisy

PARATY B.V.B.A

PL
1 record

Sartre

Active

Tulipa L. · Tulip

Hobaho B.V.

NL
1 record

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