H220912
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Hydrangea Breeders Association B.V.
Variety traits
Uniformity
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.
Breakdown by crop
Tomato Uniformity
81
Uniformity — White Cabbage
79
Barley grain uniformity
68
Carrot uniformity
51
Potato Uniformity
47
Uniformity — Cauliflower
45
Uniformity of lettuce
40
Pepper uniformity
38
Radish uniformity
31
Uniformity — Onion
30
Uniformity of cucumber
23
Sunflower uniformity
21
Uniformity — Onion
20
Uniformity — soft wheat
19
Uniformity — Broccoli
16
Triticale Uniformity
15
Watermelon Uniformity
14
Bean uniformity
14
Uniformity — Brussels sprout
13
Uniformity — Red Cabbage
12
Uniformity of zucchini
11
Uniformity — Leek
10
Uniformity of Chrysanthemum
10
Pea uniformity
10
Found in these crops
Varieties that feature this in their description
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.
H218911
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Hydrangea Breeders Association B.V.
Filigree Lace
ActiveBetula pendula Roth · Silver birch
TERRA NOVA NURSERIES INC
Fikalrodan
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
Vlielander Ike J.
Fichrycospur
ActiveChrysanthemum L. · Chrysanthemum
Fides B.V.
Fichryraincar
ActiveChrysanthemum L. · Chrysanthemum
Fides B.V.
Don Dantel
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
Timothy J.H. Hoogkamp
Dokalsin
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
Vlielander Ike J.
Golden Ticket
ActiveTulipa L. · Tulip
M.G.T. Snoek Beheer B.V.
Duemplav
TerminatedVerbena L. · Vervain
Tobias Dümmen
Dueimscearl
ActiveEuphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
Tobias Dümmen
H223904
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Hydrangea Breeders Association B.V.
Fabiola
ActiveVicia faba L. · Broad bean
SEMILLAS FITO SAU
DLFJAM3
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
Grusalvul
ActiveSalvia x sylvestris L. · Wood sage
André de Gruyter B.V.
Dophlflaproce
ActivePhlox paniculata L. · Garden phlox
van Sambeek Ellen
Don Fiero
Application submittedKalanchoe blossfeldiana Poelln. · Flaming Katy
TIMOTHY JOHAN HERMAN HOOGKAMP
Don Alano Intense
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
TIMOTHY JOHAN HERMAN HOOGKAMP
Dokalnol
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
Dümmen Group B.V.
ESM G052
ActiveGypsophila L. · Baby's breath
Guerrero Maria Elena
FV2401
ActiveVaccinium corymbosum L. · Highbush blueberry
FV B.V.
Deliamira
TerminatedChrysanthemum L. · Chrysanthemum
Arie Gerard Post
French Kiss
ActiveZantedeschia Spreng. · Arum-lily
Bram Breugem
GED18ADU7P
ActiveChrysanthemum L. · Chrysanthemum
PARATY B.V.B.A