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.

KXA4391

Terminated

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

1 record

Kiskun GySz 18 F

Terminated

Zea mays L. · Maize

Samir Rady M.

1 record

KUN CO 255

Terminated

Zea mays L. · Maize

Prof.Dr.Samir Rady

2 records

Kneja 423

Protection expired

Zea mays L. · Maize

Maize Research Institute - Kneja (BG)

1 record

Kneja 320

Active

Zea mays L. · Maize

Maize Research Institute - Kneja (BG)

2 records

KM 3490

Active

Zea mays L. · Maize

Oksom Liudmyla Leonidivna, Oksom Volodymyr Polikarpovych, Shabatko Oleksii Oleksiiovych, Karunnyi Vitalii IUriiovych,

2 records

KS KALKULATI KL

Application submitted

Brassica napus L. · Rapeseed

Pierre CASTELLANET

2 records

Kick Off

Active

Lilium L. · Lily

Laan Flora Facilities B.V.

1 record

KM22028

Active

Triticum aestivum L. · Bread wheat

KWS Momont Recherche Sarl

1 record

KM13CO24

Active

Hordeum vulgare L. · Barley

KWS Momont Recherche Sarl

1 record

Klyns`kyi

Terminated

Arachis hypogaea L. · Peanut

Frolov Volodymyr Vasyl`ovych, Lymar Volodymyr Anatoliiovych, Lymar Anatolii Ostapovych,

1 record

Kvartet F1

Terminated

Cucumis sativus L. · Cucumber

Havrysh Serhii Fedorovych, Dubinin Serhii Volodymyrovych,

2 records

KHUTORIANKA

Application submitted

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

Vovk Zhanna Mykolaivna

2 records

Kvadry F1

Terminated

Capsicum annuum L. · Bell pepper

Jan Prasil

1 record

Kiskun 4350 (Felike)

Application submitted

Zea mays L. · Maize

Samir Redi

1 record

Klaros

Terminated

Triticum aestivum L. · Bread wheat

ANDREAS SPANAKAKIS

1 record

Kharkivska 341 MV

Terminated

Zea mays L. · Maize

Derkach Iryna Borysivna, Ponurenko Serhii Hennadiiovych, Muzafarov Nail Miniiarovych, Sikalova Olena Valentynivna, Barsukov Ihor Petrovych, Chernobai Larysa Mykolaivna, Kozubenko Leonid Vasyl`ovych,

2 records

Kurazh F1

Terminated

Cucumis sativus L. · Cucumber

Shamshyna Anna Viacheslavovna, Portiankin Alieksei Evhenovych, Havrysh Serhii Fedorovych,

1 record

Kros304M

Active

Zea mays L. · Maize

Bodenko Natalia Anatoliivna, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,

2 records

KIRKWOOD

Active

Citrus sinensis (L.) Osbeck · Sweet orange

ANDRE POTGIETER

2 records

Kharkivs`ka 435 ZM

Terminated

Zea mays L. · Maize

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

2 records

Kiwa

Withdrawn

Beta vulgaris Sugar Beet Group · Sugar beet

KWS| KWS SAAT AG

1 record

Kharkivs`ka 215 MV

Terminated

Zea mays L. · Maize

Ivleva Tetiana Volodymyrivna, Derkach Iryna Borysivna, Ponurenko Serhii Hennadiiovych, Muzafarov Nail Miniiarovych, Sikalova Olena Valentynivna, Barsukov Ihor Petrovych, Chernobai Larysa Mykolaivna, Kozubenko Leonid Vasyl`ovych,

2 records

Kharkivs`ka 152 M

Terminated

Zea mays L. · Maize

Ovsiannikova Nataliia Stanislavivna, Sikalova Olena Valentynivna, Ivleva Tetiana Volodymyrivna, Barsukov Ihor Petrovych, Kamyshan Taisiia Petrivna, Chupikov Mykola Mykhailovych, Kozubenko Leonid Vasyl`ovych,

2 records

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Variety traits

Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845
Winter hardiness 27 261

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.