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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.

Reina

Application submitted

Solanum lycopersicum L. · Tomato

PHILOSEED LTD

ES NL
5 records

Rutobi

Active

Zea mays L. · Maize

SeedGenetic GmbH

IT SI
4 records

PR36D79

Protection expired

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

Pioneer Hi-bred International Inc. (USA)

FR HR
3 records

Rudilia

Active

Zea mays L. · Maize

Miloslav Masnica

SK UA
4 records

Rezano

Terminated

Solanum lycopersicum L. · Tomato

Les Graines Caillard Sa (FR)

FR NL
3 records

RGT Eros

Active

Brassica napus var. napus · Rapeseed

RAGT 2n, FR

DK FR
3 records

Roxy

Terminated

Solanum tuberosum L. · Potato

Saatzucht Rudolf Pohl K.G.

DE NL
4 records

Relaxx

Terminated

Solanum lycopersicum L. · Tomato

Seminis Vegetable Seeds

FR NL
4 records

Resista

Active

Malus Mill. · Apple

Jan Blazek c/o VSUO Holovousy

IT SK
3 records

Reinette

Terminated

Hordeum vulgare L. · Barley

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

ES FR
5 records

Rustic

Terminated

Allium porrum L. · Leek

Graines Gautier SA (FR)

ES FR
3 records

Rela

Active

Capsicum annuum L. · Bell pepper

Petr Klapste

CZ UA
4 records

Ramses

Protection expired

Solanum tuberosum L. · Potato

KARTZ VON KAMEKE

CZ DE
4 records

Pixxtol

Active

Zea mays L. · Maize

Ragt, F

AT
4 records

Zea mays L. · Maize

KWS SAAT SE and CO KGAA

DK
4 records

Roger

Terminated

Brassica oleracea L. (Brussels Sprouts Group) · Brussels sprouts

Syngenta Seeds B.V.

NL PL
3 records

Redity

Active

Solanum lycopersicum L. · Tomato

Bayer Holland B.V.

NL UA
4 records

Preferex

Terminated

Cucumis sativus L. · Cucumber

Syngenta Seeds B.V.

NL PL
4 records

Ribera

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Syngenta Crop Protection AG

ES NL
3 records

PR45W04

Protection expired

Brassica napus var. napus · Rapeseed

PIONEER HI-BRED INTERNATIONAL

FR
5 records

PR39T45

Protection expired

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

PIONEER OVERSEAS CORPORATION US

FR PL
3 records

PR37D25

Terminated

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

Pioneer Hi-bred International Inc. (USA)

FR HR
3 records

PT312

Active

Brassica napus L. · Rapeseed

PIONEER OVERSEAS CORPORATION

RO SK
4 records

Prowest

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

Oseva Uni a.s., CZ

CZ FR
4 records

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