Maturity Classification of Wheat Varieties

May 2018


Maturity classification is an important consideration when choosing a wheat variety. Abiotic stress factors such as freeze, drought or heat do not generally affect maturity classes equally within a given year. Growers can reduce overall risk from abiotic stress by splitting acres among early, medium-, and late-maturing varieties. Planting an early maturing variety generally reduces risk associated with heat during grain fill, but increases risk associated with spring freeze injury. The opposite is true for late maturing wheat varieties, which increase risk associated with heat during grain fill, but reduce risk associated with spring freeze injury. Ultimately, a diversified portfolio of wheat varieties of different maturity classes will reduce the risk associated with a single adverse weather event.
See Table 1 (back) for maturity listings of wheat varieties based on their heading date. Maturity differences at heading may not be equated to differences in final maturity in all cases. For example, Gallagher is early to heading but does not necessarily reach its final maturity early.

LicenseeEntryMaturity
KWA1863M
OSU2174L
PlainsGoldAboveVE
AGSECOAG IconM
AGSECOAG RobustVE
SyngentaAP502CLVE
SyngentaAP503CL2L
WestBredArmourE
PlainsGoldAveryM
OGIBentleyE
OGIBillingsVE
PlainsGoldBill BrownM
SyngentaBob DoleM
PlainsGoldBrawl CL PlusE
PlainsGoldByrdM
OGICenterfieldM
OSUChisholmE
SyngentaCJE
OSUCusterE
SyngentaCutterL
KWADanbyL
OSUDeliverM
SyngentaDoansE
OGIDoublestop CL PlusL
OGIDusterM
OSUEnduranceM
KWAEverestVE
SyngentaFanninVE
KWAFullerE
OGIGallagherE
OGIGarrisonM
SyngentaGreerM
OGIGuymonVL
PlainsGoldHatcherM
AGSECOHot RodE
OGIIbaM
OGIIntradaE
SyngentaJackpotE
SyngentaJagaleneM
KWAJaggerVE
KWAJoeL
KWAKanMarkM
KWAKarl 92E
KWALarryM
PlainsGoldLanginE
LCSLCS ChromeL
LCSLCS Mint*L
LCSLCS PistolE
LCSLCS WizardM
TAMULockettVL
OGILoneriderVE
Dyna-GroLong BranchVL
UN-LMaceVL
OGINF 101VE
KWAOakley CLL
OGIOK BulletM
OGIOK RisingE
KWAOverleyVE
OGIPeteVE
SyngentaPostrockM
PlainsGoldRipperE
OGIRuby LeeE
WestBredSanta FeE
OGISmith’s GoldE
OGISpirit RiderL
OGIStardustE
SyngentaSY Achieve CL2VE
SyngentaSY BenefitE
SyngentaSY DrifterL
SyngentaSY FlintVE
SyngentaSY GritE
SyngentaSY LlanoVE
SyngentaSY MonumentL
SyngentaSY RazorE
SyngentaSY RuggedE
SyngentaSY SouthwindM
SyngentaSY WolfM
LCST153VE
LCST154VE
LCST158E
LCST163M
TAMUTAM 110VE
TAMUTAM 111M
WatleyTAM 112E
AGSECOTAM 113M
AGSECOTAM 114M
WatleyTAM 204M
WatleyTAM 304E
TAMUTAM 401E
KWATatankaM
OSUTriumph 64M
WestBredWB4269VE
WestBredWB4303VE
WestBredWB4458E
WestBredWB4515M
WestBredWB4721L
WestBredWB-CedarVE
WestBredWB-GrainfieldL
WestBredWB-RedhawkE
WestBredWinterhawkM
KWAZendaE
VE = Very Early, E = Early, M = Medium, L = Late, VL = Latest
* Photoperiod sensitive

 

Beatrix Haggard
Plant Science Youth Development

Brett Carver
Wheat Breeder

David Marburger
Small Grains Extension Specialist

DASNR Extension Research CASNR
OCES  Contact
OCES
139 Agricultural Hall
Oklahoma State University
Stillwater, OK 74078
OKLAHOMA STATE UNIVERSITY