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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.

Primset

Terminated

Solanum lycopersicum L. · Tomato

CUARTERO/COSTA/NUEZ

ES
2 records

Princesse

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

DELITZSCH PFLANZENZUCHT

BE
2 records

Primosol

Terminated

Solanum lycopersicum L. · Tomato

Graines Gautier SA (FR)

FR
2 records

Primalys

Terminated

Allium cepa L. var. aggregatum G. Don · Shallot

Domaine Public (FR)

FR
2 records

Priamo

Active

Pisum sativum L. · Pea

SACCARDO FRANCO / SANTINI GUGLIELMO / VITALE POMPEO

IT
3 records

Prevamoon

Terminated

Gerbera L. · Gerbera

PREGO ROYALTY BV

NL
2 records

Prelita

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Nunhems Netherlands B.V.

NL
3 records

Solanum lycopersicum L. · Tomato

GREENROAD B.V.

NL
2 records

Porphyre

Protection expired

Cichorium intybus L. (Industrial Chicory Group) · Chicory

Florimond Desprez Veuve et Fils, FR

FR
2 records

Pratic

Terminated

Zea mays L. · Maize

HOLDEN'S FOUNDATION SEEDS INC.

IT
2 records

PR63A10

Terminated

Helianthus annuus L. · Sunflower

Pioneer Hi-Bred International Inc (US)

FR
2 records

Raba

Terminated

Phaseolus vulgaris L. · Common bean

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

PL
2 records

PR39R60

Terminated

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

PIONEER OVERSEAS CORPORATION

BE
2 records

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

VON SENGBUCH (DE)

FR
2 records

PR38W85

Terminated

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

Pioneer Hi-Bred International Inc (US)

FR
2 records

PR84G62

Terminated

Sorghum bicolor (L.) Moench subsp. bicolor · Sorghum

PIONEER HI-BRED INTERNATIONAL

ES
2 records

PR38V45

Terminated

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

PIONEER OVERSEAS CORPORATION US

FR
2 records

PR36T24

Protection expired

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

PIONEER OVERSEAS CORPORATION US

FR
2 records

PR35A52

Protection expired

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

Pioneer Hi-Bred International Inc (US)

FR
2 records

PR35F38

Protection expired

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

Pioneer Hi-bred International Inc. (USA)

HR
2 records

PR89Y79

Active

Sorghum bicolor (L.) Moench · Sorghum

PIONEER HI-BRED INT

IT
2 records

PR34D71

Terminated

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

Pioneer Hi-bred International Inc. (USA)

HR
2 records

PR88Y47

Active

Sorghum bicolor (L.) Moench · Sorghum

PIONEER HI-BRED INT

IT
2 records

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