Mammoth – the new slow and steady wheat for early sowing

31 October 2024 Wheat

InterGrain is proud to announce the release of Mammoth, a new very slow spring maturity APW wheat variety.

Wheat Breeder Dr David Tabah (DT) said Mammoth’s unique phenology and high yield potential is set to offer an excellent variety option for very early sowing and early break scenarios in medium-high rainfall regions.

“Trialled as IGW6755, Mammoth has stood out in our breeding program as it has shown very stable yield performance and flexibility in maturity across different seasons and environments compared to quick-mid winter wheats,” DT said.

“Mammoth is a versatile wheat variety to have in the silo and use when there is an opportunity to sow early in an early break scenario. Its ideal sowing window is from late March to mid April, with its maturity sitting slightly quicker than Illabo.

“Winter wheats have a vernalisation requirement, requiring cold temperatures to trigger flowering. Mammoth does not have a vernalisation requirement, allowing it to continue to develop using day length as the main trigger for flowering.

“This attribute allows Mammoth to respond to seasonal conditions and minimise frost risk.

“We have seen Mammoth exhibit flexibility in its phenology and further testing is underway to gain a deeper understanding about how Mammoth responds to environmental conditions.”

Over the past two seasons InterGrain has entered Mammoth into a number of external partner trials, including the Department of Primary Industries and Regional Development’s (DPIRD) wheat agronomy sowing time response trial. In 2022 and 2023, Mammoth demonstrated a very stable yield performance when sown in its ideal sowing window compared to quick winter wheat Illabo, showing its potential for Autumn rainfall sowing opportunities. Read more about Mammoth‘s performance in the DPIRD wheat agronomy sowing time response trials here.

Mammoth has a good all-round disease resistance profile including good yellow spot (MRMSp) and stripe rust (MRMSp – WA pathotype) resistance.

Mammoth is classified as APW in the Western and Southern zones. It has adequate grain quality attributes, however can have a smaller grain size and if sown outside its optimum sowing window and may produce higher levels of screenings.

Mammoth is available for the 2025 season from InterGrain Seedclub Members and resellers. If you would like any more information about this unique maturing wheat, please contact your local InterGrain Territory Manager.

Senior Wheat Breeder Dr David Tabah