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

Maize maturity group 5 061 Tomato maturity group 2 293 Sunflower maturity group 1 708 Maturity group — soft wheat 1 598 Maize maturity group 1 583 Grape Ripening Period 1 407 Potato maturity group 1 217 Barley Maturity Group 1 086 Pepper maturity groups 1 065 Apple Ripening Groups 890 Bean maturity group 807 Peach Maturity Group 794 Pea Maturity Group 779 Maturity Group — Soybean 777 Rapeseed maturity group 739 Maturity group — sugar beet 700 Cucumber Maturity Groups 670 Lettuce maturity group 589 Grape Ripening Period 579 Maturity group — Perennial ryegrass 564 Sweet Cherry Ripening Period 507 Carrot Maturity Groups 415 Melon maturity groups 410 Maturity group — white cabbage 384

Found in these crops

Maize 4 386 Maize 1 378 Sunflower 1 347 Tomato 1 205 Bread wheat 1 015 Barley 753 Potato 741 Soybean 740 Sugar beet 589 Bell pepper 582 Rapeseed 550 Common bean 518

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.

Ph1f9g1

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Ph48y7

Active

Zea mays L. · Maize

Steven Paul King

4 records

Ph47gz

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

4 records

Ph1njj

Active

Zea mays L. · Maize

Susanne Groh

4 records

Ph1032b

Active

Helianthus annuus L. · Sunflower

Sadik El Sayed

3 records

Picklebush

Active

Cucumis sativus L. · Cucumber

W. Atlee Burpee Company

3 records

Picholine

Active

Lactuca sativa L. · Lettuce

Vilmorin-Mikado S.A.S.

4 records

Picobello

Active

Solanum tuberosum L. · Potato

Thijs Jippes

5 records

Pitar

Active

Triticum aestivum L. · Bread wheat

SAULESCU NICOLAEITTU GHEORGHEMUSTATEA POMPILIUITTU MARIANAGIURA AUREL

4 records

Picasso

Active

Phaseolus vulgaris L. · Common bean

Van De Bunt

3 records

PHN82

Active

Zea mays L. · Maize

SEIFERT ROBERT

3 records

PHEHR

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Ph46451

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Ph43mz

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

5 records

Ph266f

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

6 records

Ph490j

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

4 records

Perla

Application submitted

Vicia villosa Roth · Hairy vetch

DE Agrártudományi Centrum Kutató Központja, Nyíregyháza

3 records

Ph42d7

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

4 records

Perla

Terminated

Oryza sativa L. · Rice

CREA-CENTRO DI RICERCA INGEGNERIA E TRASFORMAZIONI AGROALIMENTARI (CREA-IT-RM)

3 records

Ph2vj5

Active

Zea mays L. · Maize

Tomasich Josef

4 records

Ph2twm

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

4 records

Ph18wr

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

4 records

Perenaise

Active

Triticum aestivum L. · Bread wheat

Anne Ingver 20%, Merlin Haljak 10%, Reine Koppel 70% Centre of Estonian Rural Research and Knowledge

4 records

Peloton

Active

Avena nuda L. · Naked oat

ABERYSTWYTH UNIVERSITY (GB)

4 records

1 2 ... 332 333 334 335 336 337 338 ... 1078 1079 Next

Jump to page 154 235 308 325 345 435 462 617 771 925

Variety traits

Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845
Winter hardiness 27 261

All terms →

Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.