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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

Maize maturity group 5 061 Tomato maturity group 2 293 Sunflower maturity group 1 708 Maturity group — soft wheat 1 598 Maize maturity group 1 583 Grape Ripening Period 1 407 Potato maturity group 1 217 Barley Maturity Group 1 086 Pepper maturity groups 1 065 Apple Ripening Groups 890 Bean maturity group 807 Peach Maturity Group 794 Pea Maturity Group 779 Maturity Group — Soybean 777 Rapeseed maturity group 739 Maturity group — sugar beet 700 Cucumber Maturity Groups 670 Lettuce maturity group 589 Grape Ripening Period 579 Maturity group — Perennial ryegrass 564 Sweet Cherry Ripening Period 507 Carrot Maturity Groups 415 Melon maturity groups 410 Maturity group — white cabbage 384

Found in these crops

Maize 4 386 Maize 1 378 Sunflower 1 347 Tomato 1 205 Bread wheat 1 015 Barley 753 Potato 741 Soybean 740 Sugar beet 589 Bell pepper 582 Rapeseed 550 Common bean 518

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.

Chogun

Terminated

Hordeum vulgare L. · Barley

Carlsberg Research Laboratory

DK
5 records

Cegalo

Active

Trifolium incarnatum L. · Crimson clover

CENTRO DI RICERCA MIGLIORAMENTO GENETICO PIANTE AGRARIE S.R.L. C.M.G.P.A.

IT
3 records

CB Cora

Terminated

Hordeum vulgare L. · Barley

CARLSBERG A/S

DK
5 records

Celta

Active

Triticum durum Desf. · Durum wheat

INIAV - Instituto Nacional de Investigacao Agraria e Veterinaria.

PT
3 records

Chica

Active

Phaseolus vulgaris L. · Common bean

Pop Vriend Research B.V.

NL
5 records

Cranbury

Active

Beta vulgaris Garden Beet Group · Garden beet

Vilmorin-Mikado S.A.S.

FR
4 records

Coral F

Active

Linum usitatissimum L. · Common flax

IONESCU NICULINA

RO
4 records

Courtoise

Active

Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt

LEMAIRE DEFFONTAINES S.A.S.

BE
3 records

Copernicus

Active

Allium porrum L. · Leek

VEGETABLE MONSANTO B.V.

NL
3 records

Consul

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

DELITZSCH| Delitzsch Pflanzenzucht Gesellschaft mit beschraenkter Haftung

DE
3 records

Cooper

Active

Capsicum annuum L. · Bell pepper

Enza Zaden Beheer B.V.

NL
5 records

Casilda

Application submitted

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

HM.CLAUSE

FR
4 records

Cordoba

Protection expired

Lactuca sativa L. · Lettuce

Seminis Vegetable Seeds

NL
5 records

Cartel

Active

Lolium perenne L. · Perennial ryegrass

VIJN| R. Vijn c/o Cebeco Seeds B.V.

DE
5 records

Cartagena

Active

Phaseolus vulgaris L. · Common bean

Seminis Vegetable Seeds

NL
5 records

Coralia KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat AG, DE

FR
3 records

Conway

Active

Avena sativa L. · Oat

ABERYSTWYTH UNIVERSITY

FI
5 records

Codimon

Active

Zea mays L. · Maize

MOREAU PHILIPPE

IT
3 records

Condor

Protection expired

Gossypium hirsutum L. · Upland cotton

Seed Source Inc.

ES
4 records

Chagall

Protection expired

Triticum aestivum L. · Bread wheat

Plant Breeding International Cambridge Ltd (GB)

FR
5 records

Clovis

Terminated

Triticum durum Desf. · Durum wheat

Eurodur S.A.

FR
4 records

CB Cosak

Terminated

Hordeum vulgare L. · Barley

CARLSBERG A/S

DK
4 records

Clove

Terminated

Triticum aestivum L. · Bread wheat

PLANT BREEDING INTERNATIONAL CAMBRIDGE

BE
5 records

Cezar

Active

Lupinus angustifolius L. · Narrow-leaf lupin

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

PL
4 records

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