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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.

Siala

Active

Triticum aestivum L. · Bread wheat

Michael Winzeler

6 records

Vitis L. · Grapevine

Timothy P.Sheehan

4 records

Slobolt

Active

Raphanus sativus L. var. oleiformis Pers. · Oil radish

L. Stroetmann Saat, D-4400 Munster

4 records

Prunus persica (L.) Batsch · Peach

Zaiger's Inc Genetics, Zaiger's Inc Genetics

5 records

Phw1w

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

5 records

Princess

Active

Vitis vinifera L. · Common grape vine

The United States of America as represented by the Secretary of Agriculture

4 records

Lupinus luteus L. · Yellow lupin

Western Australian Agriculture Authority (WAAA), Grains Research and Development Corporation

6 records

Phalzify

Active

Phalaenopsis Bl. · Moth Orchid

Jan Van Dijk

4 records

Pollux

Active

Glycine max (L.) Merr. · Soybean

Claude-Alain Bétrix

5 records

Pitcairnia hitchcockiana

R. Maloy

4 records

PH1T9

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

PHE70

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

Primono

Active

Ononis alopecuroides L. · Salzmann's restharrow

Uri Kushnir

7 records

PH8T0

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

Phvam

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

PHPCW

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

PHC78

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

PH6KW

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

5 records

Ph38d

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

Ph12w5

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

PH1T92

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

5 records

PH0KT

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

5 records

Rosa L. · Rose

MEILLAND STAR ROSE S.A.

4 records

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Miyoshi & Co.

5 records

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