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.

Carcajolo

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Cherie noire

Terminated

Avena sativa L. · Oat

Serasem, FR

2 records

Carman

Protection expired

Prunus persica (L.) Batsch · Peach

INCONNU (FR)

1 record

CIRBRONZE

Terminated

Chrysanthemum indicum L. · Indian chrysanthemum

William E. DUFFETT (US)/JESSEL H. WALTER (FR)

1 record

BXN 47

Terminated

Gossypium hirsutum L. · Upland cotton

STONEVILLE PED. SEED CO.

1 record

CANTANDO

Application submitted

Solanum lycopersicum L. · Tomato

Harmoniz

1 record

BV 377 S

Active

Zea mays L. · Maize

KRAVCHENKO VIKTOR MYKOLAIOVYCH, BORYSOV VIKTOR MYKOLAIOVYCH

4 records

Charivnyk

Terminated

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Lymar Anatolii Ostapovych, Didenko Tetiana Volodymyrivna, Didenko Volodymyr Pavlovych,

2 records

Chalezar

Terminated

Chrysanthemum x morifolium Ramat. · Florist's daisy

Challet Herault Creation

1 record

Bush Steak

Active

Solanum lycopersicum L. · Tomato

BURPEE NL B.V.

1 record

CANCERBERO

Application submitted

Capsicum annuum L. · Bell pepper

RAMIRO ARNEDO, S.A.

2 records

Burrito

Withdrawn

Beta vulgaris Sugar Beet Group · Sugar beet

DLF Beet Seed APS

1 record

Capybara

Withdrawn

Spinacia oleracea L. · Spinach

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

1 record

Bts 306

Terminated

Zea mays L. · Maize

Ivica Ikic

4 records

BS04301

Active

Zea mays L. · Maize

Francis Glenn

2 records

Capricornio

Application submitted

Sorghum bicolor (L.) Moench · Sorghum

Elias Semillas E Insumos SRL

1 record

Chicorée à lapins

Protection expired

Cichorium intybus L. (Leaf Chicory Group) · Chicory

Domaine Public (FR)

1 record

Cerano

Withdrawn

Zea mays L. · Maize

INNOSEEDS

1 record

Cera 410

Application submitted

Zea mays L. · Maize

Procera Agrochemicals Romania SRL

1 record

Century F1

Terminated

Capsicum annuum L. · Bell pepper

Y.V. Kolostra

1 record

BRONZE MUNDIAL

Terminated

Chrysanthemum indicum L. · Indian chrysanthemum

FIDES BEHEER BV (NL)

1 record

Brixol F1

Active

Solanum lycopersicum L. · Tomato

Dr. Mario Martinelli

2 records

Chelinex

Terminated

Phaseolus vulgaris L. · Common bean

FRANCE GRAINES (FR)

1 record

Bts 282

Active

Zea mays L. · Maize

Daniel Shkoro

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.