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.
Cucumis sativus L. · Cucumber
Paul Degreef
Daucus carota L. · Carrot
Robert Prieur
Cucumis sativus L. · Cucumber
Matthijs Groot
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
OVERLOEPER| Bernhard Overloeper
Daucus carota L. · Carrot
Robert Prieur
Capsicum annuum L. · Bell pepper
Enza Zaden Beheer B.V.
Poa pratensis L. · Kentucky bluegrass
Schumann Cord, Busch Heinrich,
Impatiens L. · Balsam
Ludwig Kientzler
Capsicum annuum L. · Bell pepper
ENZA ZADEN BEHEER B.V., NL
Cucumis sativus L. · Cucumber
Paul Degreef
Spinacia oleracea L. · Spinach
Rene van Meijel
Solanum tuberosum L. · Potato
Station de Recherche du ComitÚ Nord
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
ZERR| Katharina Zerr
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Zsolt Galli
Pisum sativum L. · Pea
Syngenta UK Ltd
Spinacia oleracea L. · Spinach
Syngenta UK Ltd
Phaseolus vulgaris L. · Common bean
Rob Gehin
Daucus carota L. · Carrot
ROGER FREEMAN
Asparagus officinalis L. · Asparagus
KREIENBAUM GmbH., DE
Brassica oleracea L. (White Cabbage Group) · White cabbage
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL BV, NL
Lupinus albus L. · White lupin
LANDWIRTSCHAFTLICHE LEHRANSTALT TRIESDORF
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
XINGPING ZHANG
Gossypium hirsutum L. · Upland cotton
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANIZATION (CSIRO) PLANT INDUSTRY
Cichorium endivia L. · Endive
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)