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.

Kris

Active

Gossypium hirsutum L. · Upland cotton

Neli Valkova

2 records

Kholodnyi yar

Active

Ribes uva-crispa L. · Gooseberry

Martynenko Svitlana Vasylivna, Lushpihan Olha Petrivna,

2 records

Krezus

Terminated

Anethum graveolens L. · Dill

Hodowla i Nasiennictwo Roslin Ogrodnicz. Sp.z o.o. Bakow

1 record

KHB7210

Active

Helianthus annuus L. · Sunflower

KWS SAAT SE & CO.KGAA

1 record

Korvet MV

Terminated

Zea mays L. · Maize

Melnyk Taras Vitaliiovych, Moskalenko Volodymyr Fedorovych, Melnyk Vitalii IAkovych,

2 records

Kharkivs`ka 523 ZM

Terminated

Zea mays L. · Maize

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

2 records

Kharkivs`ka 26 M

Active

Zea mays L. · Maize

Sikalova Olena Valentynivna, Kamyshan Taisiia Petrivna, Ivleva Tetiana Volodymyrivna, Barsukov Ihor Petrovych, Kozubenko Leonid Vasyl`ovych,

2 records

Kendo

Terminated

Hordeum vulgare L. · Barley

REHSE| Dr. Ernst Rehse in Fa. Lochow-Petkus GmbH

2 records

Kros197S

Active

Zea mays L. · Maize

DZIUBETSKYI BORYS VOLODYMYROVYCH, CHERCHEL VLADYSLAV YURIIOVYCH

2 records

Kh 51 B

Active

Helianthus annuus L. · Sunflower

Riabchuk Viktor Kuz`mych, Kolieshkova Tetiana Mykolaivna, Leonova Nina Mykolaivna, Syvenko Valentyna Ivanivna, Kolomatska Valeriia Pavlivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,

2 records

Kh 146 B

Active

Helianthus annuus L. · Sunflower

Instytut roslynnytstva im. V.IA. Yur'ieva Natsionalnoi akademii ahrarnykh nauk Ukrainy

2 records

Kh 1006 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, Petrenkova Vira Pavlivna,

2 records

Kholodok

Terminated

Lepidium sativum L. · Garden cress

Pozniak Oleksandr Vasyl`ovych, Chaban Lesia Vasylivna, Kryvets` Dmytrii Olehovych,

2 records

Kastyliia

Active

Helianthus annuus L. · Sunflower

Koval`ov Volodymyr Hryhorovych, Zaitsev Oleksii Borysovych,

2 records

KhN 1116

Active

Zea mays L. · Maize

Naidonov Viktor Hryhorovych, Zabara Pavlo Petrovych, Marchenko Tetiana IUriivna, Lavrynenko IUrii Oleksandrovych, Vozhehova Raisa Anatoliivna,

2 records

Kharkivs`kyi 305 mv

Application submitted

Zea mays L. · Maize

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

2 records

Kharkivs`ka 210 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

Kora

Terminated

Solanum lycopersicum L. · Tomato

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

1 record

Korsar

Application submitted

Oryza sativa L. · Rice

Petkevych Zoia Zakharivna, Shpak Dmytro Vasylovych, Vozhehova Raisa Anatoliivna, Shpak Tetiana Mykolaivna,

2 records

Kharkivs`ka 164 M

Terminated

Zea mays L. · Maize

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

2 records

Kraplyna

Terminated

Triticum aestivum L. · Bread wheat

Kosov Anatolii Hryhorovych

2 records

Kh417

Active

Zea mays L. · Maize

Turovets` Viktor Mykhailovych, Nizheholenko Viktor Mykhailovych, Naidonov Viktor Hryhorovych, Lashyna Mariia Volodymyrivna, Netreba Olesandr Oleksandrovych, Cherchel Vladyslav IUriiovych, Antoniuk Serhii Petrovych, Bodenko Natalia Anatoliivna, Dziubetskyi

2 records

Konstantine

Active

Gossypium L. · Cotton

AGROPAN Ltd. (EL)

1 record

Kh 1007 B

Terminated

Helianthus annuus L. · Sunflower

Petrenkova Vira Pavlivna, Veselyi Vitalii Oleksandrovych, Kuzmyshena Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Alad`ina Zoia Kyrylivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,

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.