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.

NOS Woody

Active

Triticum aestivum L. · Bread wheat

Nordic Seed A/S

4 records

Opera

Active

Medicago murex Willd. · (Medics)

FERTIPRADO

3 records

Nessa

Terminated

Triticum aestivum L. · Bread wheat

Institut za ratarstvo i povrtarstvo, Novi Sad (RS)

3 records

Odett

Active

Solanum tuberosum L. · Potato

Winfried Lange, Frank Lange

6 records

Norli

Active

Pisum sativum L. · Pea

HILD SAMEN GMBH

4 records

Nikir

Active

Glycine max (L.) Merr. · Soybean

PIONEER HI-BRED INT

4 records

Nigral

Active

Solanum melongena L. · Eggplant

Vilmorin-Mikado S.A.S.

4 records

Omega

Active

Linum usitatissimum L. · Common flax

North Dakota State University

4 records

Ocean

Active

Raphanus sativus L. var. oleiformis Pers. · Oil radish

Lammers Seed Options B.V.

4 records

OAC Strive

Active

Glycine max (L.) Merr. · Soybean

UNIVERSITY OF GUELPH

4 records

Naomi

Active

Solanum melongena L. · Eggplant

Consorzio Sativa Societa Cooperativa Agricola

3 records

Necluda

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

5 records

NG610

Active

Medicago sativa L. · Alfalfa

NOVA GENETICS INC

3 records

NEX 150

Terminated

Brassica napus var. napus · Rapeseed

3 records

NCO2015

Active

Lactuca sativa L. · Lettuce

Murciana de Vegetales S.L.

4 records

Nautilus

Terminated

Solanum tuberosum L. · Potato

NORIKA Nordring- Kartoffelzucht- und Ver

4 records

Ökkes

Active

Allium cepa L. · Onion

EYLEM BAYRAM

5 records

Natara

Terminated

Lolium perenne L. · Perennial ryegrass

Alicja Ramenda

4 records

Neptun

Terminated

Helianthus annuus L. · Sunflower

VRANCEANU ALEXANDRU VIORELSTANCIU DANILPACUREANU JOITA MARIASTANCIU MARIA

3 records

Nun 03420

Terminated

Solanum lycopersicum L. · Tomato

Nunhems B.V.

5 records

NS Arabeska

Active

Triticum aestivum L. · Bread wheat

Institute of field and vegetable crops - Novi Sad (SR)

3 records

Nuda

Active

Arctium lappa L. · Greater burdock

Gert Horn

3 records

NPAQ3833

Terminated

Zea mays L. · Maize

Syngenta Crop Protection AG

4 records

Myamara

Active

Cucumis sativus L. · Cucumber

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

3 records

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Variety traits

Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845
Winter hardiness 27 261

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.