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.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Brassica oleracea L. (Red Cabbage Group) · Red cabbage
TAKII and CO LTD
Brassica oleracea L. (White Cabbage Group) · White cabbage
HAZERA SEEDS B.V.
Spinacia oleracea L. · Spinach
Kees Reinink
Brassica oleracea L. (White Cabbage Group) · White cabbage
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Nirit Seeds Ltd (IL)
Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley
Ger Bimsdeboer
Apium graveolens L. · Celery
Nunhems, NL
Solanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Monsanto Vegetable IP Management B.V.
Beta vulgaris Garden Beet Group · Garden beet
Nunhems Germany GmbH
Pisum sativum L. · Pea
Lars Andersen
Begonia L. · Begonia
Man, Jan|Lisse, Netherlands
Raphanus sativus L. var. sativus · Radish
SAATZUCHT QUEDLINBURG GMBH
Rosa L. · Rose
Poulsen Roser A/S
Daucus carota L. · Carrot
Robert Prieur
Solanum lycopersicum L. · Tomato
BEN VAN DEN BOSCH
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Spinacia oleracea L. · Spinach
Sakata Vegetables Europe S.A.S
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Hazera Seeds B.V.
Asparagus officinalis L. · Asparagus
PLANTAS DE NAVARRA, S.A.
Phleum pratense L. · Timothy grass
Feldsaaten Freudenberger G.m.b.H. & Co Kommanditgesellschaft
Solanum lycopersicum L. · Tomato
Jean-Christophe Lepeltier
Avena sativa L. · Oat
Danko Hodowla Roslin Sp.z.o.o.