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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.

Stefixx

Active

Zea mays L. · Maize

Bruno Lefevre

UA
3 records

Stapalet

Terminated

Dianthus caryophyllus L. · Carnation

ANDEL| Jacob van Andel

DE NL
2 records

Schwarzenegger

Active

Zea mays L. · Maize

FREIHERR VON MOREAU SAATZUCHT

IT
2 records

Sandra

Terminated

Glycine max (L.) Merr. · Soybean

Asaulets` Tetiana Hryhorivna, Monich Ruslan Vasyl`ovych, Okhvatenko Valentyna Hryhorivna,

CZ UA
3 records

SC2615

Active

Zea mays L. · Maize

Syngenta Crop Protection AG

IT UA
2 records

Soraya

Application submitted

Hordeum vulgare L. · Barley

SAATZUCHT DONAU GES.M.B.H. & COKG

AT FR
2 records

Rukunft

Active

Zea mays L. · Maize

SeedGenetic GmbH

IT
2 records

RPK7280

Application submitted

Zea mays L. · Maize

Euralis Génétique S.A.

UA
3 records

Snooker

Withdrawn

Festuca rubra L. · Red fescue

Have B.V.

DE NL
2 records

Recordie

Terminated

Brassica napus L. · Rapeseed

JOHANNES DIECKMANN

IT UA
3 records

SM Izolda

Active

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

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

PL
2 records

Rulac

Active

Zea mays L. · Maize

FREIHERR VON MOREAU SAATZUCHT

IT
2 records

Racing

Application submitted

x Triticosecale Wittm. ex A. Camus · Triticale

Institut national de recherche pour l'agriculture, l'aliment (FR)/Agri Obtentions SA (FR)

AT FR
2 records

Schubert

Terminated

Dianthus caryophyllus L. · Carnation

BARBERET & BLANC, S.A.

ES NL
2 records

Rubin

Active

Vitis vinifera L. · Common grape vine

Petar Dimitrov, Yordan K. Ivanov, Kolyu I. Katerov, Ivan H. Dimitrov

BG SK
4 records

Sidoni CS

Active

Brassica napus var. napus · Rapeseed

CAUSSADE SEMENCES

PL
2 records

Rowa

Active

Raphanus sativus L. var. sativus · Radish

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

PL
2 records

SC3211

Active

Zea mays L. · Maize

Syngenta Crop Protection AG

IT UA
2 records

Rimbo

Terminated

Lolium multiflorum Lam. · Italian ryegrass

PEDERSEN CHR.| Chr. Pedersen c/o Zuchtstation Daehnfeldt

DE
3 records

Shexxpir

Application submitted

Zea mays L. · Maize

R2n (FR)

BG
2 records

Shemsi

Terminated

Dianthus caryophyllus L. · Carnation

R.SHEMI LTD

ES NL
2 records

RH19021

Active

Zea mays L. · Maize

Stephane Melkior

IT UA
2 records

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