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.

Yzali CS

Active

Zea mays L. · Maize

CAUSSADE SEMENCES

1 record

X18C105

Terminated

Zea mays L. · Maize

PIONEER HI-BRED INT

1 record

TIGRI

Withdrawn

Solanum lycopersicum L. · Tomato

ASGROW SEED CO

1 record

Vitali

Withdrawn

Brassica napus L. · Rapeseed

Norddeutsche Pflanzenzucht Hans Georg Lembke KG, Holtsee DE

1 record

Tamarin

Withdrawn

Beta vulgaris L. · Beet

SESVANDERHAVE N.V

1 record

SM Jurata

Application submitted

Zea mays L. · Maize

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

1 record

SU Hyzumba

Withdrawn

Triticum aestivum L. · Bread wheat

Nordsaat Saatzucht GmbH Saatzucht Langenstein

1 record

Struppi

Withdrawn

Triticum aestivum L. · Bread wheat

W. von Borries-Eckendorf OHG, Leopoldshöhe DE

1 record

Smart Rufina KWS

Withdrawn

Beta vulgaris L. · Beet

KWS SAAT SE & CO.KGAA

1 record

ROUNDO

Active

Allium cepa L. · Onion

Syngenta Crop Protection AG

1 record

PN3017

Terminated

Zea mays L. · Maize

Frederic Poujeaud

1 record

PN1003

Terminated

Zea mays L. · Maize

Frederic Poujeaud

1 record

PREZO

Application submitted

Allium cepa L. · Onion

Syngenta Crop Protection AG

1 record

PN3025

Terminated

Zea mays L. · Maize

Frederic Poujeaud

1 record

Palina

Active

Malva verticillata L. · Chinese Mallow

Ing. Ivana Sindelkova Research Institute for Fodder Crops Ltd.

1 record

NPZ SR 1203

Terminated

Brassica napus L. · Rapeseed

Dr. Olaf Sass, Dr. Martin Frauen,

1 record

NE6345

Terminated

Zea mays L. · Maize

MONSANTO TECHNOLOGY

1 record

LSN131

Terminated

Zea mays L. · Maize

Karl Walter Mollenkopf in Fa. Maisadour Deutschland GmbH

1 record

Lo1124

Active

Zea mays L. · Maize

BIANCHI PROF. ANGELO

1 record

MGC9004

Application submitted

Brassica napus L. · Rapeseed

MAS SEEDS

1 record

LPH3916

Terminated

Zea mays L. · Maize

FOURNEAU Michael

2 records

Lo1077

Active

Zea mays L. · Maize

BIANCHI PROF. ANGELO

1 record

LIN2246

Active

Zea mays L. · Maize

Joel Meunier

2 records

KXA6385

Withdrawn

Zea mays L. · Maize

KWS Saat AG, DE

1 record

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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.