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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.

Sacramento

Withdrawn

Triticum aestivum L. · Bread wheat

RAGT 2n, FR

FR
1 record

Roi des précoces

Protection expired

Brassica oleracea L. (White Cabbage Group) · White cabbage

Domaine Public (FR)

FR
1 record

RMMC9687A

Terminated

Brassica napus var. napus · Rapeseed

FOURNEAU Michael

UA
1 record

Sabadiana

Terminated

Tulipa L. · Tulip

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

PL
1 record

SA1903

Terminated

Oryza sativa L. · Rice

SA.PI.SE SARDO PIEMONTESE SEMENTI

IT
1 record

SA1837

Application submitted

Zea mays L. · Maize

Syngenta participation AG

IT
1 record

SA0118

Withdrawn

Zea mays L. · Maize

Syngenta participation AG

IT
1 record

Rondera

Withdrawn

Brassica rapa L. var. rapa (L.) Thell. · Turnip

TAKII EUROPE B V

NL
2 records

Rolex F1

Terminated

Raphanus sativus L. var. sativus · Radish

Ger Beemsterboer

UA
1 record

Riobranco

Active

Cichorium intybus L. · Chicory

F.LLI ZAGARIA SEMENTI

IT
1 record

Roberta

Terminated

Lophospermum scandens D. Don · Creeping gloxinia

Vytauto Didžiojo universiteto Žemės ūkio akademija

LT
1 record

RNX 3403

Terminated

Brassica napus var. napus · Rapeseed

Hrehorts Shreder

UA
1 record

RNX233446

Withdrawn

Brassica napus L. · Rapeseed

Syngenta Crop Protection AG, CH

BG
1 record

RMSR365010

Application submitted

Capsicum annuum L. · Bell pepper

GREENROAD B.V.

PL
1 record

Roblau

Terminated

Brassica oleracea L. (Kohlrabi Group) · Kohlrabi

ROGGLI AG| Rudolf Roggli AG Pflanzenzucht/Samenbau

DE
2 records

Rosso tondo precocissimo 3

Active

Raphanus sativus L. · Radish

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

IT
1 record

Rossorubino

Active

Triticum turgidum L. subsp. dicoccum (Schrank ex Schübl.) Thell. · Emmer

PROMETEO SRL

IT
1 record

RM 91

Terminated

Sorghum bicolor (L.) Moench subsp. bicolor · Sorghum

Sud Cereales (FR)

FR
1 record

Rosetta ISK

Terminated

Ribes rubrum L. · Redcurrant

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

PL
1 record

Rivairenc gris

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Rosava S

Application submitted

Zea mays L. · Maize

Khromenko Vitalii Oleksandrovych, Havryliuk Viktor Mykolaiovych, Larchenko Kateryna Andriivna, Morhun Volodymyr Vasylovych,

UA
2 records

Rio corona

Withdrawn

Allium cepa L. var. cepa · Onion

Rio Colorado Seeds Inc. (US)

FR
1 record

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