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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.

Brustianu

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

CA1880

Active

x Triticosecale Wittm. ex A. Camus · Triticale

AGRI OBTENTIONS / INRAE (institut National de recherche pour l'agriculture, l'alimentation et l'environment)

IT
1 record

BG Gradus

Active

Hordeum vulgare L. · Barley

Biogranum d.o.o. (RS)

BG
1 record

Bronte

Application submitted

Triticum L. · Wheat

POGNA NORBERTO

IT
1 record

Brocofleur

Withdrawn

Brassica oleracea L. (Cauliflower Group) · Cauliflower

INCONNU (FR)

FR
1 record

Bilosnizhka

Terminated

Raphanus sativus L. var. sativus · Radish

Saiuk Anatolii Arkadiiovych, Lipskyi Volodymyr Volodymyrovych,

UA
1 record

Bernaxx

Withdrawn

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

R 2n (FR)

FR
1 record

Briz F1

Terminated

Cucumis sativus L. · Cucumber

Dymchenko Tetiana Mykolaivna, Muzhylko Viktor Valentynovych,

UA
2 records

Bringelle Kosto

Application submitted

Solanum melongena L. · Eggplant

CIRAD (FR)/Armeflhor (FR)

FR
1 record

BULGARIAN

Terminated

Allium porrum L. · Leek

HAZERA (1939)

ES
1 record

Berehynia

Application submitted

Glycine max (L.) Merr. · Soybean

Riabichuk Anatolii Vasyl`ovych, Kvasniuk Anatolii Kostiantynovych, Lavrova Halyna Dmytrivna, Sichkar V'iacheslav Ivanovych,

UA
2 records

Biancu Gentile

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

BG Agro

Application submitted

Triticum monococcum L. · Einkorn wheat

"BG Agro Zemedelska kompaniya"EOOD - Varna (BG)

BG
1 record

BX14N037

Active

Zea mays L. · Maize

Ludwig Fieldmeier

UA
1 record

Black Snow

Withdrawn

Calluna vulgaris (L.) Hull · Common heather

WINKEL| Rainer de Winkel (Gartenbau)

DE
1 record

Bobryts`kyi

Active

Solanum lycopersicum L. · Tomato

Korets`ka Olena Oleksandrivna, Kovbasenko Raisa Vasylivna, Kovbasenko Kateryna Opanasivna, Kovbasenko Vasyl` Mykhailovych, Hubar Mykola Ivanovych, Horkutsenko Oleksandr Vasyl`ovych,

UA
2 records

BROOKS

Terminated

Prunus cerasus L. · Sour cherry

The Regents of the University of California (US)

FR
1 record

Bursan

Terminated

Nicotiana tabacum L. · Tobacco

Centralne Laboratorium Przemyslu Tytoniowego

PL
1 record

Bronze Age

Terminated

Allium cepa L. · Onion

FERRY-MORSE| Ferry-Morse Seed Company

DE
1 record

Berleps

Active

Malus domestica (Suckow) Borkh. · Apple

Information not available - Contact NL authorities

NL
1 record

Brais

Active

Zea mays L. · Maize

Tovarystvo z obmezhenoiu vidpovidalnistiu «TK ART-AHRO»

UA
2 records

Braeburn Fenbra

Active

Malus domestica (Suckow) Borkh. · Apple

Information not available - Contact NL authorities

NL
2 records

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