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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

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.

Winter COT

Application submitted

Prunus armeniaca L. · Apricot

Cot International S.A.R.L.

1 record

Troy

Terminated

Dianthus caryophyllus L. · Carnation

Barberet & Blanc S.A.

1 record

Lonsalome

Terminated

Dianthus caryophyllus L. · Carnation

Barberet & Blanc S.A.

1 record

Schavnat Ok-2

Terminated

Rumex L.

DZHAMAL B. RACHMETOV, YURI ADOLFOVITCH UTEUSCH

1 record

Jade

Active

Humulus lupulus L. · Common hop

Herbert Ehrmaier

1 record

CONDOST169

Terminated

Petunia Juss. · Petunia

Ushio Sakazaki

1 record

Dublin Dark

Terminated

Chrysanthemum L. · Chrysanthemum

Deliflor Royalties B.V

1 record

Ruby Streaks

Terminated

Brassica juncea (L.) Czern. · Brown mustard

TOKITA SEED CO LTD

1 record

Burana

Terminated

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

1 record

Fawo1

Withdrawn

Populus maximowiczii x Populus trichocarpa

Nordwestdeutsche Forstliche Versuchsanstalt Abt. Waldgenressourcen

1 record

Bartaina

Withdrawn

Dianthus caryophyllus L. · Carnation

Barberet & Blanc S.A.

1 record

Lanna Zebra

Terminated

Curcuma L. · Turmeric

KWEKERIJ MEESLOUWER V.O.F.

1 record

Ablackest

Terminated

Ranunculus asiaticus L. · Persian buttercup

IMPRESA INDIVIDUALE BIANCHERI ALBERTO

1 record

Justo Cot

Active

Prunus armeniaca L. · Apricot

Cot International S.A.R.L.

2 records

BLU481

Withdrawn

Echinacea Moench. · Coneflower

AB Kwekersrechten B.V.

1 record

РA1036354

Terminated

Helianthus annuus L. · Sunflower

Liliia Polovynko

UA
2 records

Р8660

Active

Zea mays L. · Maize

Benoit Revol

UA
1 record

Zubr

Active

Avena sativa L. · Oat

Pryimachuk Mykhailo Ivanovych, Buniak Nataliia Mykolaivna,

UA
2 records

Zoreslava

Terminated

Triticum aestivum L. · Bread wheat

Oks`om Volodymyr Polikarpovych, Morhun Bohdan Volodymyrovych, Skrypl`ov Volodymyr Vasyl`ovych, Morhun Volodymyr Vasyl`ovych,

UA
2 records

РA1031065

Active

Helianthus annuus L. · Sunflower

Liliia Polovynko

UA
2 records

Іzumrudna

Terminated

Glycine max (L.) Merr. · Soybean

Skalets`ka Liudmyla Ivanivna, Polishko Mykola Pavlovych, Medviedieva Liudmyla Romanivna, Serdilei Valentyna Hryhorivna, Leschenko Anastasiia Kyrylivna,

UA
1 record

Н00005А

Terminated

Helianthus annuus L. · Sunflower

Hiunter Zaitts

UA
1 record

Іghrushka

Terminated

Prunus cerasus L. · Sour cherry

Turovtseva Valentyna Oleksandrivna, Turovtsev Mykola Ivanovych,

UA
1 record

В3316С

Active

Zea mays L. · Maize

Johann Fangl

UA
1 record

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