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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.

Zea mays L. · Maize

Ivleva Tetiana Volodymyrivna, Barsukov Ihor Petrovych, Kamyshan Taisiia Petrivna, Chupikov Mykola Mykhailovych, Kozubenko Leonid Vasyl`ovych,

UA
2 records

Kharkivs`ka 19 ZM

Application submitted

Zea mays L. · Maize

Ivleva Tetiana Volodymyrivna, Barsukov Ihor Petrovych, Kamyshan Taisiia Petrivna, Chupikov Mykola Mykhailovych, Kozubenko Leonid Vasyl`ovych,

UA
2 records

Joasia

Withdrawn

Solanum tuberosum L. · Potato

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

PL
2 records

Zea mays L. · Maize

Kozubenko Leonid Vasyl`ovych, Kamyshan Taisiia Petrivna, Ivleva Tetiana Volodymyrivna, Barsukov Ihor Petrovych, Chupikov Mykola Mykhailovych,

UA
2 records

Kh 588 B

Active

Helianthus annuus L. · Sunflower

Syvenko, Valentyna Ivanivna Makliak, Kateryna Mykolaivna Kolomatska, Valeriia Pavlivna Syvenko, Oleksandr Anatoliiovych Leonova, Nina Mykolaivna Satarov, Oleksandr Zainulovych Kyrychenko, Viktor Vasylovych Andriienko, Viktor Valentynovych

UA
2 records

Kh 4021 B

Terminated

Helianthus annuus L. · Sunflower

Kyrychenko Viktor Vasylovych, Makliak Kateryna Mykolaivna, Alad`ina Zoia Kyrylivna, Syvenko Valentyna Ivanivna, Kuzmyshena Nadiia Viktorivna, Veselyi Vitalii Oleksandrovych, Brahin Oleksandr Mykolaiovych, Popova Ol`ha Andriivna, Kryvosheieva Olena Vatsla

UA
2 records

J8316Z

Terminated

Zea mays L. · Maize

Ekhard Kholtskhauzen

UA
4 records

Helianthus annuus L. · Sunflower

Borovs`ka Iryna IUriivna, Leonova Nina Mykolaivna, Syvenko Oleksandr Anatoliiovych, Kuz`myshena Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Kolomats`ka Valeriia Pavlivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasyl`ovych,

UA
2 records

Joshi RZ

Terminated

Daucus carota L. · Carrot

Rijk Zwaan Zaadteelt en Zaadhandel B.V. (NL)

HR
1 record

Kerzenfeuer

Terminated

Rhododendron simsii Planch. · Indica azalea

HARMSEN| Georg Harmsen

DE
1 record

Jem

Active

Solanum lycopersicum L. · Tomato

JAN J.DE BRUIN

UA
2 records

KB1

Active

Ribes nigrum L. · Blackcurrant

Jan Holub s.r.o.

PL
1 record

Katrina

Active

Cichorium intybus L. · Chicory

SATIVA SEEDS & SERVICES S.R.L.

IT
1 record

Jastra

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KUTNOWSKA HODOWLA BURAKA CUKROWEGO Sp.z o.o.

PL
1 record

Kasumi F 1

Withdrawn

Brassica rapa L. subsp. chinensis (L.) Hanelt · Bok choy

Seminis Vegetables (NL)

SI
1 record

Kassina ISK

Terminated

Prunus avium (L.) L. · Sweet cherry

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

PL
1 record

Jantar

Withdrawn

Cucumis sativus L. · Cucumber

PlantiCo Hodowla i Nasiennictwo Ogrodnicze Golebiew sp. z o.o.

PL
2 records

Kasztelanka

Terminated

Capsicum annuum L. · Bell pepper

PlantiCo Hodowla i Nasiennictwo Ogrodnicze Golebiew sp. z o.o.

PL
2 records

KB2

Active

Ribes nigrum L. · Blackcurrant

Jan Holub s.r.o.

PL
1 record

ISH306

Active

Zea mays L. · Maize

AGROALIMENTARE SUD S.P.A.

IT
1 record

Allium cepa L. · Onion

Ger Bimsdeboer

UA
1 record

Jambo

Terminated

Chrysanthemum x morifolium Ramat. · Florist's daisy

PARATY B.V.B.A

PL
1 record

Isex

Terminated

Phaseolus vulgaris L. · Common bean

FRANCE GRAINES (FR)

FR
2 records

Jessica

Terminated

Solanum lycopersicum L. · Tomato

Louis Poloni (FR)

FR
1 record

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