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Variety traits

Maturity group

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.

Sources10

Breakdown by crop

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.

Haydan

Terminated

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

ICI PACIFIC SEEDS

ES
2 records

Solanum lycopersicum L. · Tomato

HEINZSEED

PT
2 records

Iker

Active

Lagenaria siceraria (Molina) Standl. · Calabash

AKIRA SEEDS S.L.

IT
2 records

Havana

Active

Solanum tuberosum L. · Potato

Charles Hartveld

NL
5 records

Headstart II

Terminated

Lolium perenne L. · Perennial ryegrass

PICKSEED WEST INC

ES
2 records

GW51527

Active

Zea mays L. · Maize

Golden West Seed Bulgaria

BG
3 records

GW51128

Active

Zea mays L. · Maize

Golden West Seed Bulgaria

BG
2 records

Malus domestica (Suckow) Borkh. · Apple

Ines Róża Osiak-Wicha

PL
5 records

Harmanli 75

Terminated

Nicotiana tabacum L. · Tobacco

Antoaneta Yancheva, Valentin Yordanov

BG
2 records

Gumbo

Terminated

Impatiens walleriana Hook. f. · Busy Lizzie

Novartis Seeds B.V.

NL
2 records

Hanna

Active

Brassica napus L. · Rapeseed

Weibull AB

SE
3 records

Hansen

Terminated

Brassica napus var. napus · Rapeseed

DLF Seeds A/S

DK
3 records

Guisol

Active

hybrids between Pelargonium peltatum and Pelargonium zonale · Ivy-leaved geranium

Guillou, Bernard|Saint-Malo, France

DE
2 records

Zea mays L. subsp. mays (Maize Group) · Maize

Monsanto Technology LLC, US

FR
2 records

Halla

Terminated

Hordeum vulgare L. · Barley

STRUBE| Johann-Friedrich Strube in Fa. Dr. J. Ackermann & Co. SaatzuchtIrlbach (Kommanditgesellschaft) / LIEBL| Josef Liebl in Fa. Dr. J. Ackermann & Co. SaatzuchtIrlbach (Kommanditgesellschaft)

DE
4 records

Hoplita

Active

Cucumis sativus L. · Cucumber

Monsanto Vegetable IP Management B.V.

NL
4 records

Hakurei

Active

Brassica rapa L. var. rapa (L.) Thell. · Turnip

Mikado Kyowa Seed Co. Ltd. (JP)

FR
2 records

Haeckero

Active

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

NL
4 records

GSM 5215

Active

Cucumis sativus L. · Cucumber

HU
2 records

H13241R

Active

Helianthus annuus L. · Sunflower

KWS SAAT SE & CO.KGAA

UA
5 records

Grom

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

PL
3 records

Grizmo

Active

Zea mays L. subsp. mays (Maize Group) · Maize

KWS SAAT SE, DE

FR
2 records

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