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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.

INNCORTGF

Active

Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn. · Pampas grass

PETER ERDSIEK

2 records

Kempt

Terminated

Triticum aestivum L. · Bread wheat

PLANT BREEDING INTERNATIONAL CAMBRIDGE

3 records

JO44YEL

Active

Chrysanthemum L. · Chrysanthemum

Luc Pieters

2 records

Koranalafi

Terminated

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

2 records

Irdaubur

Active

Pelargonium peltatum (L.) L'Hér. · Ivy-leaf geranium

Cultius Roig Sat 626 Cat, Institut de Recerca í Tecnologia Agroalimentàries (IRTA)

2 records

IFG Twelve

Active

Hybrids between Vitis vinifera and Vitis labrusca

David W.Cain

2 records

KLEDB10714

Active

Diascia Link & Otto · Twinspur

Nils Klemm^^^Katinka Wilde

2 records

Hilbregremag

Active

Dianthus barbatus L. · Sweet William

Azienda Agricola Artemisia di Marina Brea (impresa individuale)

2 records

Hurdal

Protection expired

Avena sativa L. · Oat

Graminor AS, N-2322 Ridabu

3 records

Kings Cross

Terminated

Lilium L. · Lily

De Jong Beheer B.V.

2 records

IFG Twenty Two

Active

Hybrids between Vitis vinifera and Vitis labrusca

David W.Cain

2 records

KLEDS20P77

Active

Dianthus caryophyllus L. · Carnation

MASSIMO BARATTA

2 records

H14

Active

Actinidia chinensis Planch. · Kiwifruit

Skelton Donald

2 records

Greta

Protection expired

Zantedeschia Spreng. · Arum-lily

Green Harvest Pacific Holdings Ltd

2 records

Hacienda

Active

Pisum sativum L. · Pea

Seminis Vegetable Seeds

2 records

GL10414

Active

Cucurbita pepo L. · Field pumpkin

Saatzucht Gleisdorf

2 records

Gill

Active

Cannabis sativa L. · Hemp

David Watson^^^David Potter

2 records

Gere

Active

Avena sativa L. · Oat

Graminor AS, N-2322 Ridabu

3 records

Gaia

Active

Prunus salicina Lindl. · Japanese plum

Salvatore Martelli

3 records

Golm Yela

Terminated

Dahlia Cav. · Dahlia

Pim Kaagman c/o Goldsmith Seeds Europe B.V.

2 records

Karaka

Protection expired

Solanum tuberosum L. · Potato

New Zealand Institute for Crop and Food Research Ltd

2 records

HIROA

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Roy Robin van Dijk

2 records

Jenkka

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Fresh Forward Holding B.V.

2 records

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