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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

Found in these crops

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.

Izolda

Terminated

Triticum aestivum L. · Bread wheat

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

PL
2 records

Inca Gold

Terminated

Solanum lycopersicum L. · Tomato

Vilmorin-Mikado S.A.S.

FR
2 records

Kanon

Active

Pisum sativum L. · Pea

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

PL
2 records

IRGR Viki

Terminated

Oryza sativa L. · Rice

Konstantin Kamishev

BG
3 records

Zea mays L. · Maize

Lebid` IEvhen Makarovych, Voskoboinyk Oleksandr Vasyl`ovych, Nehoda Tetiana Volodymyrivna, Marochko Valentyna Anatoliivna, Moroz Volodymyr Vasyl`ovych, Olizko Oleksii Petrovych, Borysov Viktor Mykolaiovych, Antoniuk Serhii Petrovych, Cherchel Vladyslav IU

UA
3 records

Irabal

Active

Vicia faba L. var. major Harz · Broad bean

ROCALBA, S.A.

ES
3 records

Kabrios

Active

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

IT
2 records

Ivtatriathlon

Protection expired

Rosa L. · Rose

STICHTING DLO-CENTRUM VOOR PLANTENVEREDELINGS-EN

NL
2 records

Ioana

Active

Phaseolus vulgaris L. · Common bean

VINATORU COSTEL

RO
3 records

Ivory

Protection expired

Phaseolus vulgaris L. · Common bean

NOVARTIS SEEDS

NL
3 records

Juncal

Terminated

Solanum lycopersicum L. · Tomato

Seminis Vegetable Seeds

ES
2 records

Inverstar

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KUHN E CO.

IT
2 records

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V., De Groot en Slot B.V.

NL
3 records

ISX17201

Active

Zea mays L. · Maize

AGROALIMENTARE SUD S.P.A.

IT
2 records

Judo

Terminated

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

HAZERA (1939)

ES
2 records

Joyfit

Active

Cucumis sativus L. · Cucumber

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
3 records

Islr3

Terminated

Brassica napus var. napus · Rapeseed

Serasem (FR)/Institut National de la Recherche Agronomique (FR)

FR
2 records

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

IT
2 records

ISH719

Active

Zea mays L. · Maize

AGROALIMENTARE SUD S.P.A.

IT
2 records

ISH620

Active

Zea mays L. · Maize

AGROALIMENTARE SUD S.P.A.

IT
2 records

ISH715

Active

Zea mays L. · Maize

IVS S.R.L. - ISTA VENETO SEMENTI

IT
2 records

ISH406

Active

Zea mays L. · Maize

AGROALIMENTARE SUD S.P.A.

IT
2 records

ISH711

Terminated

Zea mays L. · Maize

IVS S.R.L. - ISTA VENETO SEMENTI

IT
2 records

ISH312

Active

Zea mays L. · Maize

AGROALIMENTARE SUD S.P.A.

IT
2 records

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