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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

Found in these crops

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.

KWS Jeffreys

Application submitted

Hordeum vulgare L. · Barley

KWS Lochow

DE DK
3 records

Zea mays L. · Maize

Rainer Leipert

DE UA
4 records

Hibiscus

Active

Cichorium intybus L. (Industrial Chicory Group) · Chicory

S.A.S. Florimond Desprez Veuve & Fils

FR NL
4 records

KWS AB191R

Terminated

Secale cereale L. · Rye

KWS Lochow

DK PL
3 records

Ixxar

Terminated

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

R 2n (FR)

CZ FR
3 records

Hemus

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

SUGAR BEET RESEARCH INSTITUTE

BG IT
3 records

Jaspe

Active

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

Franck CHAUVEAU

FR UA
4 records

Jam

Active

Zea mays L. · Maize

FREIHERR VON MOREAU SAATZUCHT

DE IT
3 records

Korela

Protection expired

Solanum tuberosum L. · Potato

Norika Nordring-Kartoffelzucht und Vermehrungs GmbH (DE)/Sativa Keřkov, a.s. (CZ)

CZ SK
5 records

Isola

Active

Medicago sativa L. · Alfalfa

Carlo Invernizzi

UA
3 records

Zea mays L. · Maize

KWS, D

BG
4 records

Imperial

Terminated

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

PETOSEED CO

ES IT
4 records

Jabot

Terminated

Solanum lycopersicum L. · Tomato

Seminis Vegetable Seeds

ES NL
3 records

Kokuna

Active

Zea mays L. · Maize

BAYERISCHE PFLANZENZUCHTGESELLSCHAFT EG & CO

IT UA
3 records

Korreos

Terminated

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

IT PT
3 records

Ixabel

Active

Zea mays L. · Maize

Monsanto Technology, USA

IT
4 records

ISH303

Active

Zea mays L. · Maize

Mario Lo Pinto

IT UA
4 records

Isadur

Terminated

Triticum durum Desf. · Durum wheat

GAE Recherche SA (FR)

AT FR
5 records

Hector

Terminated

Spinacia oleracea L. · Spinach

Vikima Seed A.S.

DK PL
3 records

Gualda

Active

Capsicum annuum L. · Bell pepper

Moshe Zalsman

ES UA
3 records

Kiruna

Terminated

Hordeum vulgare L. · Barley

SAATZUCHT STRENG-ENGELEN GMBH&CO. KG

DK SK
5 records

Inia

Protection expired

Capsicum annuum L. · Bell pepper

Enza Zaden (NL)

NL SI
3 records

Kismy

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

NL
5 records

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