Variety traits
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.
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
Nickerson Zwaan B.V. (NL)
Hordeum vulgare L. · Barley
Poznanska Hodowla Roslin Sp. z o.o
Lolium perenne L. · Perennial ryegrass
Innoseeds B.V.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Paul Degreef
x Triticosecale Wittm. ex A. Camus · Triticale
WOS HENRYK / MACKOWIAK WALENTY / PAIZERT KAZIMIERZ O. STEFAN / SZELAG BOZENA / SZELAG JANUSZ / CICHY HENRYK / MAZURKIEWICZ LESZEK, O. JERZY
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley
Jock Rudi
Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley
Jan Draaistra
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
HM Clause, USA
Helianthus annuus L. · Sunflower
MEUNIER JOEL
Impatiens L. · Balsam
Ludwig Kientzler
Daucus carota L. · Carrot
VEGETABLE MONSANTO B.V.
Triticum durum Desf. · Durum wheat
Saatzucht Donau GmbH & Co.KG
Pisum sativum L. · Pea
Seminis Vegetable Seeds
Xerochrysum bracteatum (Vent.) Tzvelev · Strawflower
Redlands Nursey Pty Ltd
Allium cepa L. · Onion
Bejo Zaden, NL
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Xerochrysum bracteatum (Vent.) Tzvelev · Strawflower
Redlands Nursey Pty Ltd
Brassica oleracea L. (White Cabbage Group) · White cabbage
MEINDERT BOON
Agrostis stolonifera L. · Creeping bentgrass
Peak Plant Genetics, LLC & Rutgers, The State University of New Jersey
Phaseolus vulgaris L. · Common bean
Rob Gehin
Lolium perenne L. · Perennial ryegrass
PURE SEED TESTING
Foeniculum vulgare Mill. · Fennel
Henk Driessen
Phaseolus vulgaris L. · Common bean
Syngenta, NL