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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.

Traguardo

Active

Phaseolus vulgaris L. · Common bean

Blumen Group S.p.A. (IT)

FR
3 records

Turda 165

Active

Zea mays L. · Maize

GRECU CONSTANTINHAS IOANCABULEA IANCUHAS VOICHITACOPANDEAN ANA

RO
3 records

Ti Rouge

Active

Allium sativum L. · Garlic

Cirad - Pole de protection des plantes (FR)

FR
2 records

Touraco

Terminated

Pisum sativum L. · Pea

GSN Semences SAS (FR)

FR
2 records

Tovi Rosalia

Terminated

Solanum lycopersicum L. · Tomato

ZERAIM GEDERA

ES
2 records

Tullio

Active

Foeniculum vulgare Mill. · Fennel

Enza Zaden Beheer B.V.

NL
4 records

Tigre

Active

Oryza sativa L. · Rice

ENTE NAZIONALE RISI

IT
3 records

Tiana

Active

Cucurbita moschata Duchesne · Butternut squash

Ralf Kuijpers

UA
3 records

Totem Imp Red

Active

Solanum lycopersicum L. · Tomato

NAMDHARI SEEDS PVT LTD

NL
4 records

Toto

Active

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

PlantiCo Hodowla i Nasiennictwo Ogrodnicze Szymanów Sp. z o.o.

PL
3 records

Thriller

Active

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

Bc Institut d.d. Zagreb (HR)

HR
2 records

Terrier

Terminated

Triticum aestivum L. · Bread wheat

Nickerson International Research S.N.C.

DE
3 records

Terrastar

Active

x Triticosecale Wittm. ex A. Camus · Triticale

LEMAIRE DEFFONTAINES S.A.S.

FR
2 records

Tosca

Protection expired

Cichorium endivia L. · Endive

Vilmorin SA (FR)

FR
3 records

Torrente

Terminated

Cucumis sativus L. · Cucumber

De Ruiter Seeds B.V.

NL
3 records

Thongal

Active

Lactuca sativa L. · Lettuce

ZETA SEEDS S.L.

IT
2 records

Timeo

Active

Cucumis melo L. · Melon

Hort Seed Mediterrani S.L

IT
2 records

Tsakoniki Leonidiou

Active

Solanum melongena L. · Eggplant

HAO-DEMETER Vine, Fruit Trees and Vegetable Research Institute

GR
2 records

Terflash

Terminated

Gerbera L. · Gerbera

P.E.BOERLAGE

NL
2 records

Tor

Active

Zea mays L. · Maize

Breus Oksana Serhiivna, Parii IUliia Oleksandrivna, Parii Fedir Mykytovych, Parii Myroslav Fedorovych, Parii IAroslav Fedorovych,

UA
3 records

Texeira

Active

Zea mays L. · Maize

PANAM FRANCE SARL

IT
2 records

Tiaris

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SESVanderhave NV

BE
2 records

Tropical

Terminated

Allium cepa L. var. cepa · Onion

Panora s.p.a.

NL
2 records

Teodora

Active

Phaseolus vulgaris L. · Common bean

BURNICHI FLOAREASTRUGARIU CARMEN-GABRIELATEODORESCU ELIZA-NICULINAPETRE CONSTANTIN

RO
3 records

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