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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.

A98-139

Terminated

Poa pratensis L. · Kentucky bluegrass

DLF-TRIFOLIUM DANSK PLANTEFORAEDLING

IT
1 record

29I22A

Withdrawn

Helianthus annuus L. · Sunflower

Yves BIOULAC

UA
2 records

YANOON 6

Withdrawn

Actinidia chinensis Planch. · Kiwifruit

Changsha Yanoon BioTech Co. Ltd.

1 record

A 38/64

Withdrawn

Triticum aestivum L. · Bread wheat

Todor Gubatov

BG
1 record

26TT0075A

Terminated

Helianthus annuus L. · Sunflower

Frederic Poujeaud

UA
2 records

9K968

Withdrawn

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

IT
1 record

WPB Shaun

Withdrawn

Avena sativa L. · Oat

Wiersum Plantbreeding B.V.

1 record

Adaptyvna

Terminated

Hippophae rhamnoides L. · Sea buckthorn

Moskalets Valentyn Vitaliiovych, Moskalets Vitalii Ivanovych, Moskalets Tetiana Zakharivna, Hrynnyk Ihor Volodymyrovych,

UA
2 records

1K139

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Ann-Katrin Muennekhoff, Dietrich Hauer

UA
1 record

Wodka Sunny

Terminated

Chrysanthemum L. · Chrysanthemum

Fides B.V.

1 record

1089J5071-01

Application submitted

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

IT
1 record

1084F587-01

Application submitted

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

IT
1 record

1081J802-01

Application submitted

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

IT
1 record

1078H468-01

Application submitted

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

IT
1 record

1075F961-01

Application submitted

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

IT
1 record

85P10Rip

Withdrawn

Helianthus annuus L. · Sunflower

Yves BIOULAC

UA
2 records

Brachyscome multifida DC. · Cut-leaf daisy

REINHARD W.ROTHER

1 record

4EN0003

Withdrawn

Brassica napus L. · Rapeseed

Jutta Kaiser

UA
3 records

0937

Terminated

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

Dekalb Genetics Corporation (usa) (US)

FR
1 record

419Kh124

Terminated

Sorghum bicolor (L.) Moench · Sorghum

Diego Druetto

UA
2 records

3RI24/15

Application submitted

Oryza sativa L. · Rice

S.I.S. SOCIETA' ITALIANA SEMENTI

IT
1 record

A7-88N-11

Terminated

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Fresas Nuevos Materiales S.A.

ES
2 records

A3-54-1

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Fresas Nuevos Materiales S.A.

ES
2 records