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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.

Ossk 661 B

Protection expired

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

Poljoprivredni Institut Osijek, HR

HR
2 records

Ortowax

Terminated

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

Orsem Hybrides (FR)

FR
2 records

Or Splendor

Terminated

Lactuca sativa L. · Lettuce

BLUMEN GROUP S.P.A

IT
2 records

Zea mays L. · Maize

CREA- CENTRO DI RICERCA PER LA CEREALICOLTURA (CREA-CI-BG) / FONDAZIONE MORANDO BOLOGNINI / VENTUROLI SEMENTI S.R.L.

IT
2 records

Oriola

Active

Phaseolus vulgaris L. · Common bean

SEMILLAS FITO, S.A.

ES
2 records

Oman

Terminated

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
3 records

OS230SU

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Poljoprivredni Institut Osijek, HR

HR
2 records

Ourania

Protection expired

Gossypium hirsutum L. · Upland cotton

HAO-DEMETER Cotton and Industrial Crops Institute

GR
3 records

Orient Express

Protection expired

Cucumis sativus L. · Cucumber

Robson Corporation

AT
2 records

Party

Active

Cucurbita pepo L. · Field pumpkin

ISI SEMENTI SPA

IT
2 records

Ossk 665

Protection expired

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

Poljoprivredni Institut Osijek, HR

HR
2 records

Paz

Active

Zea mays L. · Maize

Delley Seeds and Plants

LT
2 records

Ossk 654

Protection expired

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

Poljoprivredni Institut Osijek, HR

HR
2 records

Orquesta

Terminated

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Ossk 552

Protection expired

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

Poljoprivredni Institut Osijek, HR

HR
2 records

Paride

Active

Pisum sativum L. · Pea

SACCARDO FRANCO / SANTINI GUGLIELMO / VITALE POMPEO

IT
3 records

Parada

Terminated

Trifolium pratense L. · Red clover

Malopolska Hodowla Roslin Spolka z o.o.

PL
2 records

Oscarde

Terminated

Lactuca sativa L. · Lettuce

Graines Gautier SA (FR)

FR
3 records

OS5518

Active

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

Poljoprivredni Institut Osijek, HR

HR
2 records

Os 378

Active

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

Poljoprivredni Institut Osijek, HR

HR
2 records

OS3523

Active

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

Poljoprivredni Institut Osijek, HR

HR
2 records

Lactuca sativa L. · Lettuce

Vilmorin-Mikado SAS (FR)

FR
2 records

Opolanka

Active

Raphanus sativus L. var. sativus · Radish

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

PL
2 records

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