Wheat

RGT Marsh

A high yielding spring wheat for Western Australia.


WA GROWERS, MEET YOUR NEW IN-FIELD YIELD WEAPON 

RGT Marsh is a high performing spring wheat bred for Western Australia. With robust performance across tough seasons and standout disease resistance, this variety has proven itself over multiple years where others stumble.

RGT Marsh is the new yield weapon for WA growers. With three years of robust NVT data across 47 sites, it has consistently performed across all WA AgZones, particularly in May–June sowings. Boasting upright leaves for better light interception, strong resistance to rust, Septoria nodorum and black point, plus excellent grain quality with low screenings, good size, and solid sprouting tolerance, RGT Marsh is set to deliver reliable performance. AH or APW classification is pending from Grains Australia.

Type – Main season white spring wheat

Disease Resistance – Visit nvt.grdc.com.au/nvt-disease-ratings

Seedling Vigour – Excellent

Suitable Sowing Zones – Western Australia, Agzones 1 to 6 

Features

  • Bred for WA, by RAGT Australia. Developed at RAGT’s Longerenong Breeding Centre and tested rigorously across WA from Geraldton to Esperance
  • Consistent top end yields over 2023 and 2024 NVTs
  • Robust disease resistance
  • Resistance is RMR to Stripe Rust, MSS to Leaf Rust, MRMS to Stem Rust, and improved Glume and Leaf Blotch tolerance
  • Quick mid maturity similar to Scepter, TomahawkCL with best time of sowing from late April into June
  • Pending AH classification
  • Seed available 2026 through Australian Seed & Grain (Moora), MultiSeeds, and EDSCO (Kellerberrin)

Benefits

  • Adaptable variety suited to sowing across WA from early May to mid-June. Grower management will be easier as has similar phenology to current lines
  • Higher yield and better grain quality than current widely grown varieties will increase profitability for WA growers, particularly through the central and eastern wheatbelt areas
  • Robust disease resistance, allows growers to manage to rusts and Septoria more economically
  • Good seed production through seed partners in 2025 has allowed plenty of seed for rapid adoption of variety

Sowing Rates

50-100kg/ha
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RGT Marsh Tech Sheet