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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.

RH16063

Terminated

Zea mays L. · Maize

Stephane Melkior

IT UA
3 records

Seru

Terminated

Hordeum vulgare L. · Barley

Lantmännen SW Seed

DK SE
4 records

Zea mays L. · Maize

RAGT 2N S.A.S

IT
2 records

Predator

Withdrawn

Raphanus sativus L. var. oleiformis Pers. · Oil radish

RAGT 2n, FR

DE FR
2 records

RH24033

Active

Zea mays L. · Maize

RAGT 2N S.A.S

IT UA
3 records

RH23017

Active

Zea mays L. · Maize

RAGT 2N S.A.S

IT UA
3 records

RH21037

Active

Zea mays L. · Maize

Stephane Melkior

IT UA
3 records

RH17050

Active

Zea mays L. · Maize

Stephane Melkior

IT UA
3 records

Rantzo

Protection expired

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

Rustica Prograin Genetique SA (FR)

FR
4 records

Zea mays L. · Maize

RAGT 2N S.A.S

IT
2 records

Salomone

Active

Solanum lycopersicum L. · Tomato

SAIS SPA- Cesena (IT)

HR
2 records

PX138

Terminated

Brassica napus L. · Rapeseed

PIONEER OVERSEAS CORPORATION

SK
3 records

Relayer

Active

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

Nordic Maize Breeding Vof

CZ NL
2 records

Rudesta

Active

Zea mays L. · Maize

Ludwig Feldmeier

UA
2 records

Red Sea

Terminated

Solanum lycopersicum L. · Tomato

ASGROW SEED CO

ES
2 records

Rotonde

Terminated

Trifolium pratense L. · Red clover

D.J.VAN DER HAVE

ES NL
2 records

Pick Rite

Protection expired

Solanum lycopersicum L. · Tomato

Harris Moran Seed (US)

NL SI
2 records

Precos

Active

Solanum lycopersicum L. · Tomato

Hristo Georgiev

BG
3 records

RH21036

Active

Zea mays L. · Maize

Stephane Melkior

IT UA
3 records

RH20034

Active

Zea mays L. · Maize

Stephane Melkior

IT UA
3 records

RAP 1055

Withdrawn

Brassica napus L. · Rapeseed

Karsten Ortel`, Khainrikh Bush, Verner Paul`mann,

BG UA
3 records

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