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Maturity Classification of Wheat Varieties

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.

 

Table 1.

Licensee Entry Maturity
KWA 1863 M
OSU 2174 L
PlainsGold Above VE
AGSECO AG Icon M
AGSECO AG Robust VE
Syngenta AP502CL VE
Syngenta AP503CL2 L
WestBred Armour E
PlainsGold Avery M
OGI Bentley E
OGI Billings VE
PlainsGold Bill Brown M
Syngenta Bob Dole M
PlainsGold Brawl CL Plus E
PlainsGold Byrd M
OGI Centerfield M
OSU Chisholm E
Syngenta CJ E
OSU Custer E
Syngenta Cutter L
KWA Danby L
OSU Deliver M
Syngenta Doans E
OGI Doublestop CL Plus L
OGI Duster M
OSU Endurance M
KWA Everest VE
Syngenta Fannin VE
KWA Fuller E
OGI Gallagher E
OGI Garrison M
Syngenta Greer M
OGI Guymon VL
PlainsGold Hatcher M
AGSECO Hot Rod E
OGI Iba M
OGI Intrada E
Syngenta Jackpot E
Syngenta Jagalene M
KWA Jagger VE
KWA Joe L
KWA KanMark M
KWA Karl 92 E
KWA Larry M
PlainsGold Langin E
LCS LCS Chrome L
LCS LCS Mint* L
LCS LCS Pistol E
LCS LCS Wizard M
TAMU Lockett VL
OGI Lonerider VE
Dyna-Gro Long Branch VL
UN-L Mace VL
OGI NF 101 VE
KWA Oakley CL L
OGI OK Bullet M
OGI OK Rising E
KWA Overley VE
OGI Pete VE
Syngenta Postrock M
PlainsGold Ripper E
OGI Ruby Lee E
WestBred Santa Fe E
OGI Smith’s Gold E
OGI Spirit Rider L
OGI Stardust E
Syngenta SY Achieve CL2 VE
Syngenta SY Benefit E
Syngenta SY Drifter L
Syngenta SY Flint VE
Syngenta SY Grit E
Syngenta SY Llano VE
Syngenta SY Monument L
Syngenta SY Razor E
Syngenta SY Rugged E
Syngenta SY Southwind M
Syngenta SY Wolf M
LCS T153 VE
LCS T154 VE
LCS T158 E
LCS T163 M
TAMU TAM 110 VE
TAMU TAM 111 M
Watley TAM 112 E
AGSECO TAM 113 M
AGSECO TAM 114 M
Watley TAM 204 M
Watley TAM 304 E
TAMU TAM 401 E
KWA Tatanka M
OSU Triumph 64 M
WestBred WB4269 VE
WestBred WB4303 VE
WestBred WB4458 E
WestBred WB4515 M
WestBred WB4721 L
WestBred WB-Cedar VE
WestBred WB-Grainfield L
WestBred WB-Redhawk E
WestBred Winterhawk M
KWA Zenda E

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

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