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.
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Syngenta Seeds B.V.
Capsicum annuum L. · Bell pepper
Enza Zaden Beheer B.V.
Beta vulgaris Leaf Beet Group · Swiss chard
MARALDI SEMENTI S.r.l.
Daucus carota L. · Carrot
CAROSEM BV
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Solanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
Capsicum annuum L. · Bell pepper
PILPEL SEEDS
Brassica rapa L. var. rapa (L.) Thell. · Turnip
TAKII EUROPE B V
Allium cepa L. var. cepa · Onion
Hazera Seeds B.V.
Capsicum annuum L. · Bell pepper
ERMA ZADEN EXPORT B.V.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Organisation Bretonne de Selection-OBS (FR)/Institut National de la Recherche Agronomique (FR)/Cerafel (FR)
Capsicum annuum L. · Bell pepper
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Gautier Semences SAS (FR)
Solanum lycopersicum L. · Tomato
Gautier Semences SAS (FR)
Cucurbita pepo L. · Field pumpkin
Syngenta Crop Protection AG
Daucus carota L. · Carrot
Sativa Rheinau AG (CH)
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Niwa Hodowla Roślin Jagodowych sp. z o.o.
Allium fistulosum L. · Welsh onion
TOKITA Sementi Italia srl
Capsicum annuum L. · Bell pepper
Bayer Holland B.V.
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Capsicum annuum L. · Bell pepper
Enza Zaden Beheer B.V.
Cucurbita pepo L. · Field pumpkin
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Gautier Semences SAS (FR)
Rhododendron obtusum (Lindl.) Planch. · Hirado azalea
Paul Wensing