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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.

LG 30252

Active

Zea mays L. · Maize

LIMAGRAIN EUROPE

DE
3 records

KM Maraton

Active

Medicago sativa L. · Alfalfa

Bocsa Ivan

HU
4 records

CXD 263

Active

Solanum lycopersicum L. · Tomato

CLAUSE

PT
4 records

Delta-405

Active

Cannabis sativa L. · Hemp

CELESA

ES
3 records

K.S. 3

Active

Lactuca sativa L. · Lettuce

MINISTERO DELLE POLITICHE AGRICOLE E FORESTALI - DIREZIONE GENERALE DELLE POLITICHE AGRICOLE ED AGROINDUSTRIALI NAZIONALI

IT
3 records

EH 994

Active

Helianthus annuus L. · Sunflower

JOSE RAMON PEREZ MONREAL

UA
4 records

Jack of Hearts

Terminated

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

PETOSEED CO

ES
3 records

EARLY GRANDE

Active

Prunus persica (L.) Batsch · Peach

Universidad de Texas

ES
4 records

CMS 504 A 21

Terminated

Brassica napus var. napus · Rapeseed

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG, Deutsche Saatveredelung AG, W. von Borries-Eckendorf GmbH & Co. KG

DE
4 records

I-101

Active

Olea europaea L. · Olive

José María Gómez Porras^^^Diego Barranco Navero^^^Luis Rallo Romero^^^Concepción Muñoz Díez^^^Carlos Trapero Ramírez^^^Pedro Valverde Caballero

ES
3 records

DEL'FIN

Active

Solanum tuberosum L. · Potato

ZUJKOV ANDREJ EVGEN'EVICh / NEZAKONOVA LYuDMILA VASIL'EVNA / IGNATOVA NADEZhDA MAKSIMOVNA / MAHAN'KO LEONID ARKAD'EVICh / SChASLENOK EVA MAKSIMOVNA / BUS'KO IVAN IVANOVICh

PL
6 records

I 31

Active

Olea europaea L. · Olive

Todolivo S.L.^^^Universidad de Córdoba

ES
11 records

GSKAK 1

Active

Cucurbita pepo L. · Field pumpkin

Edith von Bourscheidt

DE
3 records

Azur-Star

Active

Brassica oleracea L. (Kohlrabi Group) · Kohlrabi

WALTER HILD

DE
5 records

BIMBO STAR

Active

Cucumis sativus L. · Cucumber

KONONOV ALEKSANDR NIKOLAEVICh

DE
3 records

AGM 1506

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
3 records

Aga Gold

Active

Zea mays L. · Maize

FREIHERR VON MOREAU SAATZUCHT

IT
4 records

Bc 513 pc

Active

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

Bc Institut, HR

HR
4 records

DP 5415 RR

Protection expired

Gossypium hirsutum L. · Upland cotton

William V. Hugie.

ES
3 records

DK 3825

Terminated

Helianthus annuus L. · Sunflower

GIE Sockalb (FR)

FR
4 records

DH 401

Active

Glycine max (L.) Merr. · Soybean

GAGNON ERIC

UA
4 records

TH-1876

Application submitted

Vaccinium corymbosum L. · Highbush blueberry

Scott NeSmith

3 records

DKC 3088

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
3 records

DKC 3059

Active

Zea mays L. · Maize

Bayer CropScience

DE
4 records

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