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.
Lolium multiflorum Lam. · Italian ryegrass
Prof. Dr. ir. Dirk Reheul c/o Universität Gent - Afd. Planten- teelt en Plantenveredeling
Raphanus sativus L. var. sativus · Radish
Hazera Seeds B.V.
Daucus carota L. · Carrot
Robert Prieur
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
Solanum tuberosum L. · Potato
Fobek B.V., Broer A.J. Siderius, Potato Masters Picardie S.A.S., Tuberosum Technologies Inc.
Phaseolus vulgaris L. · Common bean
HOLLAND SELECT
Cucumis sativus L. · Cucumber
HENK VAN KOOTEN
Beta vulgaris Garden Beet Group · Garden beet
BEJO ZADEN
Cucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
C. Sperling (DE)
Allium cepa L. · Onion
Cora Seeds, I
Linum usitatissimum L. · Common flax
Van de Bilt Zaden en Vlas B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Cora Seeds SRL, I
Brassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Seeds B.V.
Allium porrum L. · Leek
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lupinus angustifolius L. · Narrow-leaf lupin
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Cucumis melo L. · Melon
Syngenta Seeds B.V.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Syngenta Seeds B.V. (NL)
Lupinus luteus L. · Yellow lupin
Poznanska Hodowla Roslin Sp. z o.o
Brassica oleracea L. (Kohlrabi Group) · Kohlrabi
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Cucumis sativus L. · Cucumber
Sakata Vegetables Europe, F
Cichorium endivia L. · Endive
Enza Zaden Beheer B.V.