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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.

William

Active

Brassica oleracea L. (Broccoli Group) · Broccoli

SOUTHERN SEED S.R.L.

IT
1 record

Wilau

Terminated

Allium schoenoprasum L. · Chives

DRESSLER| Dr. Ottfried Dressler

DE
1 record

Yomegan

Terminated

Chrysanthemum x morifolium Ramat. · Florist's daisy

VANDENBERG| Cornelis P. Vandenberg

DE
1 record

Raphanus sativus L. · Radish

AUSTROSAAT Österr. Samenzucht- und Handels-AG

AT
1 record

Zimbawe

Withdrawn

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

MERIDIEM SEEDS S.L.

IT
1 record

Wolf F1

Active

Allium cepa L. · Onion

Villem P. Van khake

UA
2 records

Xolatyl XR

Application submitted

Solanum lycopersicum L. · Tomato

Axia NL B.V.

NL
2 records

Xanadu XR

Application submitted

Solanum lycopersicum L. · Tomato

Axia NL B.V.

NL
4 records

Yelena

Active

Freesia Eckl. ex Klatt · Freesia

P. Hofland B.V.

NL
1 record

Warthog

Application submitted

Cucurbita pepo L. · Field pumpkin

TOZER SEEDS LTD

NL
2 records

Xenia XR

Application submitted

Solanum lycopersicum L. · Tomato

Axia NL B.V.

NL
2 records

Wayvita

Application submitted

Lactuca sativa L. · Lettuce

Syngenta Crop Protection AG

NL
2 records

Vruchyi

Terminated

Linum usitatissimum L. · Common flax

Hanhanov Volodymyr Mykolaiovych, Lisovyi Oleksandr Borysovych, Karpets` Ivan Pankratovych, Holovenko Valentyna Ivanivna,

UA
1 record

YPACARAI

Application submitted

Solanum lycopersicum L. · Tomato

MERIDIEM SEEDS S.L.

ES
1 record

Yolorex

Terminated

Capsicum annuum L. · Bell pepper

Asgrow Seed Company (US)

FR
1 record

Viviette

Application submitted

Capsicum annuum L. · Bell pepper

Enza Zaden Beheer B.V.

NL
2 records

Wayfinder

Withdrawn

Capsicum annuum L. · Bell pepper

Enza Zaden Beheer B.V.

NL
2 records

WALISER GALA

Terminated

Malus domestica (Suckow) Borkh. · Apple

H. KENT WALISER (US)

FR
1 record

Xerany

Application submitted

Solanum lycopersicum L. · Tomato

Axia NL B.V.

NL
2 records

Vuiko

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Zhurbin Volodymyr Dmytrovych, Horhan Al`ona Mykhailivna, Horhan Tet`iana Mykhailivna, Horhan Nadiia Oleksandrivna, Horhan Mykhailo Dmytrovych,

UA
2 records

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

Tovarystvo z obmezhenoiu vidpovidalnistiu "SPARK SIDZ"

UA
2 records

Vigo

Application submitted

Solanum lycopersicum L. · Tomato

Vreugdenhil Breeding & Seeds B.V.

NL
2 records

VIGILANTE

Application submitted

Capsicum annuum L. · Bell pepper

CAPITAL GENETIC EBT, S.L.

ES
1 record

Vincher

Terminated

Sorghum bicolor (L.) Moench subsp. bicolor · Sorghum

Korobko IUliia Anatoliivna, Kravchenko Viktor Mykolaiovych, TROTsENKO Anatolii Hryhorovych, Borysov Viktor Mykolaiovych,

UA
2 records

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