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.

AS 475

Withdrawn

Helianthus annuus L. · Sunflower

ASGROW SEED CO

1 record

AS 33035

Terminated

Zea mays L. · Maize

Frederic Poujeaud

2 records

AS 33021

Terminated

Zea mays L. · Maize

Frederic Poujeaud

1 record

Arturello

Active

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

KWS SAAT SE&CO.KGaA, DE

1 record

AR 18101 K

Active

Zea mays L. · Maize

Stotskyi Viktor

2 records

Ardesio

Active

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

KWS SAAT SE&CO.KGaA, DE

1 record

Aramis

Withdrawn

Helianthus annuus L. · Sunflower

VERNEUIL RECHERCHE

1 record

Zeemimosa

Terminated

Chrysanthemum pacificum Nakai · Pacific chrysanthemum

Azaleakwekerij Arends C.V.

1 record

Allia

Withdrawn

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

R 2n (FR)

1 record

Albus

Active

Vicia faba L. var. equina St.-Amans · Horse bean

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

2 records

SUM 305

Active

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

2 records

Albanor RM

Withdrawn

Helianthus annuus L. · Sunflower

EURALIS GENETIQUE

1 record

Alicia

Terminated

Hordeum vulgare L. · Barley

Lochow-Petkus GmbH (DE)

1 record

Adoc

Protection expired

Glycine max (L.) Merr. · Soybean

Union Nationale des Cooperatives Agricoles de Collecte Sigma (FR)/Institut National de la Recherche Agronomique (FR)

1 record

ABS 5319

Withdrawn

Helianthus annuus L. · Sunflower

Agro Bio Seed Ltd, BG

1 record

Mentor

Active

Glycine max (L.) Merr. · Soybean

Lidea France S.A.S

1 record

Lgr16

Terminated

Helianthus annuus L. · Sunflower

LIMAGRAIN GENETICS GRANDES CULTURES

1 record

FS5582B

Terminated

Helianthus annuus L. · Sunflower

MONSANTO TECHNOLOGY

1 record

BB Sandra

Active

Hordeum vulgare L. · Barley

BERTHOLD BAUER

1 record

Kh 4413 V

Active

Helianthus annuus L. · Sunflower

Cuprun Oleh Hryhorovych, Udovichenko Anna IUriivna, Shepilov Borys Petrovych, Andriienko Viktor Valentynovych, Leonova Nina Mykolaivna, Kuzmyshena Nadiia Viktorivna, Kolomatska Valeriia Pavlivna, Syvenko Valentyna Ivanivna, Makliak Kateryna Mykolaivna, Ky

1 record

UR 9 zS

Terminated

Zea mays L. · Maize

Tsentylo Leonid Vasyl`ovych, Boreiko Vasyl` Sydorovych,

2 records

PH 505 B

Terminated

Helianthus annuus L. · Sunflower

Pannar Seed Ltd (GB)

1 record

M 1786 ZS

Terminated

Zea mays L. · Maize

Melnyk Vitalii IAkovych, Moskalenko Volodymyr Fedorovych,

2 records

ZL86B

Terminated

Helianthus annuus L. · Sunflower

Soroka Anatolii Ivanovych, Liakh Viktor Oleksiiovych, Shuhurova Nataliia Oleksiivna, Odynets` Serhii Ivanovych, Sereda Valentyna Oleksiivna, Shudria Larysa Ivanivna, Kutischeva Nataliia Mykolaivna,

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.