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. (Broccoli Group) · Broccoli
Takada Seed Co, Ltd (JP)
Solanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
Solanum lycopersicum L. · Tomato
DE RUITER SEEDS
Lactuca sativa L. · Lettuce
Enza Zaden Beheer
Allium cepa L. · Onion
ISI SEMENTI S.P.A
Cucumis melo L. · Melon
VILMORIN, S.A.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Bayer Holland B.V. (NL)
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Solanum lycopersicum L. · Tomato
Vilmorin SA (FR)
Capsicum annuum L. · Bell pepper
UNITED GENETICS SEEDS CO
Lactuca sativa L. · Lettuce
ENZA ZADEN BEHEER B.V., NL
Solanum lycopersicum L. · Tomato
Royal Sluis Vegetables BV (NL)
Cucumis sativus L. · Cucumber
TEZIER, S.A.
Allium cepa L. · Onion
Syngenta Seeds BV, Netherlands
Lactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
Raphanus sativus L. var. sativus · Radish
Hazera Seeds B.V.
Allium cepa L. · Onion
Paul Degreef
Brassica napus var. napus · Rapeseed
SELGEN A.S
Raphanus sativus L. var. sativus · Radish
Sakata Seed Corporation (JP)/Sakata Seed America Inc (US)
Brassica oleracea L. (Brussels Sprouts Group) · Brussels sprouts
BEJO ZADEN
Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean
P.H. Petersen Saatzucht Lundsgaard GmbH (DE)
Sorghum bicolor (L.) Moench · Sorghum
PIONEER HI-BRED INT
Brassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Seeds B.V.
Solanum lycopersicum L. · Tomato
Vittorio Stravatto