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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.

Antaressa

Terminated

Solanum lycopersicum L. · Tomato

L. DÆHNFELDT A/S

DK
2 records

Antim

Terminated

Solanum melongena L. · Eggplant

L. Krasteva, M. Stoyanov, B. Nakov

BG
3 records

Alena

Active

Solanum tuberosum L. · Potato

Norika Nordring-Kartoffelzucht-und Vermehrungs- GmbH Gros Lusewitz

LV
3 records

Aicardi

Terminated

Dianthus caryophyllus L. · Carnation

JACOB VAN ANDEL

NL
2 records

Albada

Terminated

Oryza sativa L. · Rice

INIA/IVIA

ES
3 records

Agrovalus

Active

Cannabis sativa L. · Hemp

GRASSI GIULIO

IT
2 records

Agripa

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

INTERSEMILLAS SAU

ES
2 records

ALC 401

Active

Papaver somniferum L. · Opium poppy

ALCALIBER, S.A.

ES
3 records

Altria

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

R 2n (FR)

FR
2 records

Alabarda

Active

Capsicum annuum L. · Bell pepper

ALEJANDRO MARTIN CARA

ES
3 records

Altanero

Active

Allium sativum L. · Garlic

CULVIMAN,SLU

ES
2 records

Afra

Active

Solanum tuberosum L. · Potato

HEINHOLD GEORG| Georg Heinhold

DE
4 records

Akilina

Active

Cucumis sativus L. · Cucumber

Paul Degreef

UA
3 records

Adyta

Terminated

Medicago sativa L. · Alfalfa

C.S.I.C.-AULA DEI

ES
2 records

Alore

Terminated

Cucumis melo L. · Melon

LEEN DE MOS ZADEN B.V.

ES
2 records

Alonsoma

Terminated

Brassica oleracea L. (White Cabbage Group) · White cabbage

MARNER GZG| Rijk Zwaan Marne Aktiengesellschaft

DE
2 records

Alacon

Active

Triticum durum Desf. · Durum wheat

INIA-DIP.ARAGON

ES
3 records

Alombo

Active

Zea mays L. · Maize

FREIHERR VON MOREAU SAATZUCHT

IT
2 records

Almena

Terminated

Hordeum vulgare L. · Barley

SAN MIGUEL

ES
3 records

Adria

Protection expired

Prunus dulcis (Mill.) D. A. Webb · Almond

SCHEAU VIORELSCHEAU VIOLETAGATEA MANUEL

RO
3 records

Aidar

Active

Brassica napus var. napus · Rapeseed

Parii Anna Fedorivna, Parii Myroslav Fedorovych, Parii IAroslav Fedorovych, Parii Fedir Mykytovych,

UA
2 records

Akzento

Terminated

Triticum aestivum L. · Bread wheat

PBI SAATZUCHT

DE
3 records

Aicara

Terminated

Hordeum vulgare L. · Barley

CSIC-SIDTA-IRTA-INIA

ES
2 records

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