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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.

Akmee

Terminated

Hordeum vulgare L. · Barley

Fernand Lepleuple (FR)

FR
1 record

ABC Veto

Active

Triticum aestivum L. · Bread wheat

Todor Gubatov

BG
1 record

AD22

Active

Vicia sativa L. · Common vetch

SOCIETÀ AGRICOLA F.LLI D'EUGENIO DI D'EUGENIO CLAUDIA & C. S.A.S.

IT
1 record

63G13is

Terminated

Helianthus annuus L. · Sunflower

Pierre GARRAUD

UA
2 records

5K583

Withdrawn

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat AG, DE

HR
1 record

93Z074-Z15

Active

Hordeum vulgare L. · Barley

INIA-IRTA-CSIC-ITA

ES
1 record

AH 14

Terminated

Brassica napus var. napus · Rapeseed

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Jürgen Noack

DE
1 record

7SH385

Terminated

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

Verneuil Recherche SA (FR)

FR
1 record

Aktual

Active

Hordeum vulgare L. · Barley

Vorobiova IUliia Viktorivna, Konyk Hryhorii Stanislavovych, Bilovus Halyna IAroslavivna, Yaremko Vasyl` IAroslavovych, Marukhniak Andrii IAroslavovych,

UA
2 records

Akrobat

Terminated

Cucurbita pepo L. · Field pumpkin

Frolov Volodymyr Vasyl`ovych, Lymar Anatolii Ostapovych, Kholodniak Liubov Volodymirivna, Kholodniak Oleh Heorhiiovych,

UA
2 records

Alkora

Terminated

Triticum aestivum L. · Bread wheat

Hodowla Roslin Rolniczych Nasiona Kobierzyc Sp.z.o.o.

PL
2 records

2K310

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

ES
1 record

292

Withdrawn

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

Pioneer Hi-Bred International Inc (US)

FR
1 record

5K598

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE&CO.KGaA, DE

HR
1 record

4PDBY26A

Terminated

Brassica napus var. napus · Rapeseed

Konrad Kraling

UA
1 record

ABF306

Application submitted

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

UNIVERSITÀ CATTOLICA DEL SACRO CUORE

IT
1 record

2282

Withdrawn

Triticum aestivum L. · Bread wheat

PIONEER HI-BRED INTERNATIONAL

ES
1 record

Agalia

Terminated

Tulipa L. · Tulip

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

PL
1 record

226YA988CMS

Application submitted

Zea mays L. · Maize

Frantz Boudet

UA
2 records

Abaco F1

Active

Daucus carota L. · Carrot

Hari Besels

UA
1 record

440D

Active

Zea mays L. · Maize

Syngenta participation AG

IT
1 record

4105B018 01

Withdrawn

Brassica napus var. napus · Rapeseed

Jean-Claude Pruvot

UA
1 record

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