Variety traits
Maturity group is a biological characteristic of a variety that determines the length of its growing season from emergence to full maturity. This trait is a key tool for planning agronomic operations and selecting varieties suited to the climatic conditions of a region.
Mentioned in descriptions 89 063 varieties reference book.
Maturity group represents a biological characteristic of a variety that determines the duration of the growing season from the moment of seedling emergence to the onset of harvest or full maturity. This trait directly influences the choice of production strategy, allowing agronomists to optimize harvest timing, minimize losses due to crop lodging or over-ripening, and adapt crops to local climate conditions, avoiding risks associated with early frosts or drought periods.
The assessment of the maturity group is conducted within the framework of state variety testing on specialized plots by comparing the variety under study with a zoned standard. The duration of the growing season in days is used as a quantitative indicator. The gradation of groups from early-maturing to late-maturing does not have uniform numerical boundaries for all species, as it is based on the biological characteristics of a specific crop and the conditions of the cultivation zone.
Membership in a maturity group is determined by the genetic characteristics of the variety, however, the rate of progression through phenological phases depends on abiotic factors such as temperature regime, moisture availability, and photoperiodism. Cultivation techniques, including sowing dates and fertilization systems, can adjust maturation timing but do not change the genetic classification of a variety into a specific group.
There is an interconnection between the maturity group and biochemical indicators of product quality, such as protein and gluten content in the grain. For effective utilization of this trait, it is necessary to rely on the results of local trials, as a variety may perform differently under various soil and climatic conditions.
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 napus var. napus · Rapeseed
Plant Breeding International Cambridge Ltd (GB)
Lactuca sativa L. · Lettuce
A L TOZER LTD
Helianthus annuus L. · Sunflower
prof.Nina Nenova,prof.Galin Georgiev, prof.Valentina Encheva
Oryza sativa L. · Rice
HPR S.R.L.
Zea mays L. · Maize
LIDEA FRANCE SAS
Hordeum vulgare L. · Barley
HAO-DEMETER - Cereal Institute
x Triticosecale Wittm. ex A. Camus · Triticale
LEMAIRE DEFFONTAINES S.A.S.
Cucumis sativus L. · Cucumber
BURPEE NL B.V.
Oryza sativa L. · Rice
S.I.S. SOCIETA' ITALIANA SEMENTI
Triticum aestivum L. · Bread wheat
RAGT 2n
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed
Solanum tuberosum L. · Potato
KWEEK-EN RESEARCHBEDRIJF AGRICO B.V.
Helianthus annuus L. · Sunflower
SEMILLAS CARGILL, S.A.
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Helianthus annuus L. · Sunflower
CAUSSADE SEMENCES
Lolium perenne L. · Perennial ryegrass
DLF B.V.
Pisum sativum L. · Pea
CRITES-MOSCOW GROWERS INC.
Helianthus annuus L. · Sunflower
Brassica napus var. napus · Rapeseed
Dekalb Genetics Corporation (usa) (US)
Helianthus annuus L. · Sunflower
CEREOL UNGHERIA
Oryza sativa L. · Rice
Cirad-Ca Paris (FR)
Oryza sativa L. · Rice
INNOCENTI MAURO
Glycine max (L.) Merr. · Soybean
PZO-Pflanzenzucht Oberlimpurg
Lactuca sativa L. · Lettuce
BEJO ZADEN