Skip to content

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.

Krips

Terminated

Cichorium intybus L. (Industrial Chicory Group) · Chicory

DEPARTEMENT VOOR PLANTENGENETICA EN -VEREDELING

BE
2 records

Krinas

Terminated

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)

FR
3 records

Zea mays L. · Maize

Bodenko Natalia Anatoliivna, Oleshko Olena Henadiivna, Nehoda Tetiana Volodymyrivna, Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,

UA
3 records

Kresowiak

Terminated

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

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

PL
3 records

Kreolis

Protection expired

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

KWS Saat AG, DE

FR
2 records

Kerprim

Terminated

Phaseolus vulgaris L. · Common bean

Le Bris Jean-Jacques (FR)

FR
2 records

Kenya Gold

Protection expired

Solidago L. · Goldenrod

Hoogen, W. Van Den

NL
2 records

Zea mays L. · Maize

Antoniuk Serhii Petrovych, Harkava Olena Mykolaivna, Romanenko Svitlana Vasylivna, Voskoboinyk Oleksandr Vasyl`ovych, Hrabovs`kyi Mykola Borysovych, Ilchenko Larysa Anatoliivna, Halechko Ivan Dmytrovych, Olizko Oleksii Petrovych, Cherchel Vladyslav IUriio

UA
3 records

Zea mays L. · Maize

Kupar Ivan Mykhailovych, Haidash Oleksandr Leonidovych, Fedko Mykola Mykolaiovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,

UA
3 records

Zea mays L. · Maize

Borysov Viktor Mykolaiovych, Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,

UA
2 records

Kenearly

Terminated

Phaseolus vulgaris L. · Common bean

Domaine Public (FR)

FR
2 records

Zea mays L. · Maize

Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,

UA
3 records

Kibic

Active

Cucumis melo L. · Melon

Nunhems B.V.

NL
4 records

KH 232

Active

Zea mays L. · Maize

Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,

UA
3 records

Helianthus annuus L. · Sunflower

Syvenko Oleksandr Anatoliiovych, Veselyi Vitalii Oleksandrovych, Syvenko Valentyna Ivanivna, Kolomatska Valeriia Pavlivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,

UA
3 records

Krindor

Terminated

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)

FR
4 records

Kbira

Active

Avena sativa L. · Oat

SEMILLAS BATLLE, S.A.

ES
3 records

Kazmina

Terminated

Avena sativa L. · Oat

COPSA

ES
6 records

Keyannis

Terminated

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

IT
2 records

Khe3169r

Active

Helianthus annuus L. · Sunflower

Jim Gerdes

UA
3 records

Solanum lycopersicum L. · Tomato

AUSTROSAAT Österr. Samenzucht- und Handels-AG

AT
2 records

Kosma

Terminated

Triticum aestivum L. · Bread wheat

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

PL
3 records

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

PT
2 records

Khalk

Active

Brassica napus var. napus · Rapeseed

Solomenko Andrii Ivanovych, Breus Oksana Serhiivna, Parii IUliia Oleksandrivna, Koval`chuk Zoreslava Volodymyrivna, Parii Myroslav Fedorovych, Parii IAroslav Fedorovych,

UA
3 records

Jump to page 154 308 429 462 519 539 617 629 771 925