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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.

F 1444

Terminated

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

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR
1 record

ELDAD

Withdrawn

Gossypium hirsutum L. · Upland cotton

HAZERA (1939)

ES
1 record

F 1254

Terminated

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

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR
1 record

EZ5161

Application submitted

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
1 record

EY4940

Application submitted

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
1 record

Excellio KWS

Terminated

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

KWS Saat AG, DE

FR
1 record

Earliglow

Terminated

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Livestock and Seed Division (US)

FR
1 record

EXPM013

Active

Zea mays L. · Maize

Eric Rayn

UA
2 records

EXPH-003

Active

Zea mays L. · Maize

Francis Glenn

UA
2 records

EY3438

Withdrawn

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
1 record

Exxtrem Duo

Terminated

Zea mays L. · Maize

R.A.G.T. 2n SAS

AT
1 record

EX5553

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
1 record

E254475

Application submitted

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
1 record

Excellence

Terminated

Cichorium intybus L. · Chicory

SARL ADRIEN MOMONT ET FILS, FR

FR
3 records

Elliska

Active

Triticum aestivum L. · Bread wheat

SECOBRA RECHERCHES S.A.S

CZ
2 records

Ellada 420 SV

Terminated

Zea mays L. · Maize

Larkin Mykhailo Ivanovych, Harkava Olena Mykolaivna, Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Baldzhi Dmytro Heorhiiovych, Dziubetskyi Borys Volodymyrovych,

UA
2 records

Elmo

Withdrawn

Triticum aestivum L. · Bread wheat

Landwirtschaftliche Fachschule Edelhof Saatzucht

AT
1 record

Editio

Active

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

KWS SAAT SE&CO.KGaA, DE

FR
1 record

EDERENA

Terminated

Vitis L. · Grapevine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR
1 record

Eley

Active

Avena sativa L. · Oat

Todorka Savova

BG
1 record

Evienne

Terminated

Calluna vulgaris (L.) Hull · Common heather

Peter Herzog

DE
1 record

Elettra

Active

Ranunculus asiaticus L. · Persian buttercup

BERUTO MARGHERITA

IT
1 record

EX4678

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
1 record

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