PH1KPK
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
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.
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
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.
PH12BN
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Ph11sp
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
RC Big Rock
ActivePanicum virgatum L. · Switchgrass
Roger Samson
PHR1J
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
PER2711
ActiveEuphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
Kobayashi Ruth
PHHCC
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Phw9z
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
PHE35
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
PHBBP
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
PH7JB
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Ph4cm5
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Ph474b
ActiveZea mays L. · Maize
Pioneer Overseas Corporation/ Pioneer Hi-Bred International Inc., USA
Phw0v
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
PHVCK
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Phtfe
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Ph1k8c
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
PH8WD
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
PHF4R
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Ph2hg
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Ph1v7g
ActiveZea mays L. · Maize
PIONEER OVERSEAS CORPORATION
PH581
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
PH4RD
ActiveZea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Piznair
ActiveTriticum aestivum L. · Bread wheat
Dario Fossati