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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.

MURCHANTE

Application submitted

Capsicum annuum L. · Bell pepper

RAMIRO ARNEDO, S.A.

ES
1 record

MERRIL FRANCISCAIN

Protection expired

Prunus persica (L.) Batsch · Peach

Grand Merrill (dcd) Mme Lucille Merrill (US)

FR
1 record

MESNADA

Active

Solanum lycopersicum L. · Tomato

INTERSEMILLAS SAU

ES
1 record

Mouna F1

Active

Solanum lycopersicum L. · Tomato

Mercier Jean-Claude

UA
1 record

Murano

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

NL
2 records

Milano

Application submitted

Freesia Eckl. ex Klatt · Freesia

Van den Bos Freesia B.V.

NL
1 record

Solanum lycopersicum L. · Tomato

J. Hoogstarten

UA
2 records

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

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

UA
2 records

Mieszko

Terminated

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

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

PL
1 record

Midori

Application submitted

Cucumis melo L. · Melon

Levantia Seed Srl (S )

BG
1 record

Mliivska

Application submitted

Viburnum opulus L. · Guelder rose

Burkut Oksana Serhiivna, Tykhyi Taras Ivanovych,

UA
2 records

Monnail

Terminated

Prunus persica (L.) Batsch · Peach

Rene Monteux-Caillet (FR)

FR
2 records

MG 005

Active

Cucumis melo L. · Melon

MERIDIEM SEEDS S.L.

ES
1 record

Megan

Application submitted

Rubus occidentalis L. · Black raspberry

Niwa Hodowla Roślin Jagodowych sp. z o.o.

PL
2 records

MOSCU

Application submitted

Cucumis sativus L. · Cucumber

SEMILLAS FITO, S.A.

ES
1 record

MERCED

Terminated

Carthamus tinctorius L. · Safflower

INIA-OTRI

ES
1 record

Mendel

Application submitted

Apium graveolens L. var. dulce (Mill.) Pers. · Celery

TOZER SEEDS LTD

NL
2 records

Meimucas

Terminated

Rosa L. · Rose

ALAIN MEILLAND

DE
1 record

Prunus cerasus L. · Sour cherry

Turovtsev Mykola Ivanovych, Turovtseva Valentyna Oleksandrivna,

UA
2 records

MAYA

Protection expired

Daucus carota L. · Carrot

TEZIER (FR)

HR
1 record

MIRARI

Withdrawn

Lactuca sativa L. · Lettuce

MERIDIEM SEEDS S.L.

ES
1 record

Merapi

Active

Lilium L. · Lily

Mak Breeding Rights B.V.

NL
1 record

Mayflower F1

Terminated

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Robert Leviel`

UA
2 records

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