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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.

Nobel

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Graminor AS, N-2322 Ridabu

5 records

Palmetto

Active

Vaccinium corymbosum L. · Highbush blueberry

SCOTT NESMITH ARLEN D. DRAPER,

6 records

P3124

Active

Zea mays L. · Maize

Santos González

4 records

PHV6T

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

Navsel 2

Active

Vitis L. · Grapevine

Grapeco Limited

3 records

PHGMA

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Orinoco

Terminated

Chrysanthemum L. · Chrysanthemum

Deliflor Royalties B.V

3 records

Pixie Star

Protection expired

Dianthus L. · Carnation

Whetman Pinks

3 records

Osage

Active

Rubus L. subg. Rubus · Blackberry

JOHN REUBEN CLARK

4 records

Phw2m

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Phrdw

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Phjc0

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

3 records

PHGJB

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

PHBBK

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Muretto

Terminated

Triticum aestivum L. · Bread wheat

Agroscope / Agroscope

4 records

Cannabis sativa L. · Hemp

MedReleaf Corp. / MedReleaf Corp.

4 records

PHHHN

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

PHE2E

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

PHAVN

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Pha283

Active

Helianthus annuus L. · Sunflower

PIONEER HI-BRED INTERNATIONAL

3 records

PHALOFMO

Active

Phalaenopsis Bl. · Moth Orchid

Van Swieten Martinus Nicolaas Gerardus

3 records

PH7CP

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

PH705

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Odalix

Active

Glycine max (L.) Merr. · Soybean

Claude-Alain Bétrix

4 records

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