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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.

Roulette

Terminated

Solanum lycopersicum L. · Tomato

Ferry Morse Seed Co.(USA) (US)

FR
2 records

Avena sativa L. · Oat

RAGT 2N S.A.S

SE
3 records

Rhone

Terminated

Phaseolus vulgaris L. · Common bean

Agro Seed Research BVBA

NL
2 records

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

RAGT 2n, FR

FR
2 records

Zea mays L. · Maize

RAGT 2n Center de Recherce, Rodez FR

HU
2 records

Rocca

Active

Brassica napus L. · Rapeseed

RAPSODIE

IT
2 records

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

RAGT 2n, FR

FR
2 records

RGT Paramexx

Terminated

Zea mays L. · Maize

RAGT 2N S.A.S

IT
2 records

RGT Keos

Active

Brassica napus var. napus · Rapeseed

RAGT 2n, FR

FR
2 records

Regulator

Terminated

Capsicum annuum L. · Bell pepper

Enza Zaden Beheer B.V.

NL
2 records

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

RAGT 2n, FR

FR
2 records

RGT Ggaby

Terminated

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

RAGT 2n, FR

FR
2 records

RL272 SV

Active

Zea mays L. · Maize

Rysin Artur Leonidovych

UA
3 records

Rorkal

Active

x Triticosecale Wittm. ex A. Camus · Triticale

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

FR
3 records

Regent

Active

Allium cepa L. var. cepa · Onion

Enza Zaden Beheer B.V.

NL
2 records

Rixxer YG

Terminated

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

R 2n (FR)

FR
2 records

Residane

Terminated

Spinacia oleracea L. · Spinach

L. DÆHNFELDT A/S

DK
2 records

Ronutex

Active

Juglans regia L. · Persian walnut

RADESCU IOANARADESCU ADRIAN - NICOLAERADESCU LAURA

RO
3 records

Reyana

Active

Solanum lycopersicum L. · Tomato

Bistra Ts. Atanasova, Hristo A. Georgiev

BG
3 records

Refren

Protection expired

Hordeum vulgare L. · Barley

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

PL
3 records

Ristra

Terminated

Capsicum annuum L. · Bell pepper

HORTAG SEED CO.

PL
2 records

Rendera

Active

Solanum lycopersicum L. · Tomato

Hazera Seeds B.V.

NL
2 records

Romel

Terminated

Pisum sativum L. · Pea

ASGROW SEED CO

ES
3 records

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