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
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Allium cepa L. var. cepa · Onion
TAKII EUROPE B V
Prunus persica (L.) Batsch · Peach
Lowell Glen Bradford (US)
Prunus persica (L.) Batsch · Peach
Thomas O. CHAMBERLIN (US)
Cucurbita pepo L. · Field pumpkin
Syngenta Seeds B.V.
Solanum melongena L. · Eggplant
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Raphanus sativus L. var. sativus · Radish
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Carthamus tinctorius L. · Safflower
ICI PACIFIC SEEDS
Phaseolus vulgaris L. · Common bean
HOLLAND SELECT
Daucus carota L. · Carrot
Limagrain UK
Beta vulgaris Garden Beet Group · Garden beet
HILD SAMEN GMBH
Lactuca sativa L. · Lettuce
Syngenta Crop Protection AG
Lactuca sativa L. · Lettuce
Nunhems B.V.
Lactuca sativa L. · Lettuce
Syngenta Seeds B.V.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
Phaseolus vulgaris L. · Common bean
Vilmorin-Mikado S.A.S.
Spinacia oleracea L. · Spinach
Bejo Zaden B.V.
Daucus carota L. · Carrot
TAMAR ORGANICS
Lactuca sativa L. · Lettuce
TAKII JAPAN and CO. 180 UMEKOJI
Capsicum annuum L. · Bell pepper
Silvester de Nooijer
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Vilmorin, F
Cucurbita pepo L. · Field pumpkin
Syngenta Seeds B.V.