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.
Cannabis sativa L. · Hemp
MAISON DU VEGETAL
Lactuca sativa L. · Lettuce
Steven Mitchell, Daniel Trimboli, Enza Zaden Australia Pty Ltd
Phaseolus vulgaris L. · Common bean
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Syngenta Seeds BV, Netherlands
Festuca rubra L. · Red fescue
Euro Grass Breeding GmbH Co. KG
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
SSC JP
Brassica napus var. napus · Rapeseed
Hauska Detlef, Busch Heinrich,
Spinacia oleracea L. · Spinach
Henk Driessen
Solanum tuberosum L. · Potato
Germicopa Breeding S.A.S
Daucus carota L. · Carrot
VEGETABLE MONSANTO B.V.
Cucumis sativus L. · Cucumber
Rijk Zwaan, NL
Lolium perenne L. · Perennial ryegrass
DLF SEEDS A/S
Cucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
Bejo Zaden, NL
Lactuca sativa L. · Lettuce
Tezier SA (FR)
Beta vulgaris Garden Beet Group · Garden beet
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Beta vulgaris Garden Beet Group · Garden beet
Sakata Vegetables Europe, F
Festuca rubra L. · Red fescue
DLF B.V.
Allium fistulosum L. · Welsh onion
URSEL SCHLEMMER SPRINGMANN
Brassica oleracea L. (Broccoli Group) · Broccoli
Pierre Hurier
Brassica oleracea L. (White Cabbage Group) · White cabbage
Seminis Vegetable Seeds
Solanum tuberosum L. · Potato
ROCUS PIETER GRAVELAND
Brassica oleracea L. (White Cabbage Group) · White cabbage
VAN DER PLOEG SJAAK