THE first commercial crop of an Australian durum wheat variety that was unsuccessful in its home country will be harvested in Chile in February.
The Yawa variety of durum wheat, which is mainly used to make pasta, was first bred by the late Professor Tony Rathjen and Dr David Cooper at the University of Adelaide. They worked in conjunction with co-investment partners Grains Research and Development Corporation and the NSW Department of Primary Industries. Yawa was released in Australia on September 4, 2012.
However, its small grain size in dry years meant it was not suitable to the often-harsh southern Australian conditions and it has since all but vanished from the market. A 50-gram sample of Yawa seed was sent to Chilean researchers at Isopro and the University of Talca under a material transfer agreement in 2012. Plentiful water from the Andes and slightly cooler growing conditions allowed Yawa to thrive under irrigation in Chile, outperforming local varieties by up to 40 per cent in trials.
The Chilean trials over four years have achieved yields of up to 11.6 tonnes per hectare, 1000 grain weight (TGW) of up to 53, Color b* consistently between 30-32 and protein levels up to 12.2 per cent.
Isopro founders Stuart Thomas and Sergio Rojas said Yawa had consistently out-yielded all other varieties in the trials, on some occasions by up to 40pc.
Thomas said it had also proved far superior to local varieties for black point resistance and in overall quality.
“We are absolutely thrilled with Yawa and the excellent yields it manages to achieve over here,” he said.
“With Yawa, our ultimate goal is to increase the area under durum production and destine that production to other South American countries, either as grain or semolina.”
Durum wheat breeder Jason Able from the University of Adelaide’s School of Agriculture, Food & Wine has built the relationship with Isopro since 2012.
He said conservative business projections showed royalties – paid at the rate of A$4.50/t of grain – could reach $500,000 a year within seven years.
The university sent one tonne of pure seed to Isopro last year, which produced 32t of seed in February. That seed was all sold to growers who are expected to harvest about 1200t in the New Year.
“Of this, about 800t will be sold to local mills and 400t kept back for seed with a potential to produce a lot more the following year,” Associate Professor Able said.
“Where Isopro want to get to is they want to be able to export into Peru and Colombia because they are big buyers of durum from Canada or Mexico. Those pasta companies there have had discussions with Isopro and are quite excited by what they’ve seen with Yawa.”
Durum in South America
Associate Professor Able said there were strict rules around the Yawa licence, which meant the durum could only be grown in Chile and the grain or semolina sold in South America.
“We didn’t want to see competition against Australian growers in a situation where if it really took off and they wanted to export it to Italy then that would be directly competing with our growers, which is not on,” he said.
Chile has only become a self-sufficient durum producer in recent years and reaps about 145,000t a year. Isopro is hoping the yield and quality benefits will quickly convince existing growers to switch to Yawa and also lure new growers into the industry.
Outside of Chile there is very little durum grown in South America with the bulk of pasta made from grain imported from Canada or Mexico. Peru imports about 300,000t of durum, Colombia 150,000t and Bolivia and Equador some 50,000t each year.
“There’s this golden opportunity for Isopro to really take a step up and dominate some of the market share if they can get a substantial number of growers to produce enough grain to be milled and distributed around these other South American countries,” Associate Professor Able said.
The South Australian durum breeder will travel to Chile next month to conduct an audit of Yawa plantings and speak with growers about farming techniques to maximise protein levels in the durum.
Global durum production is typically between 30 and 40 million tonnes a year.
Durum in Australia
Australia exports a little over half of the 500,000 – 600,000t of durum wheat it grows a year. But it is the high quality of the grain, including protein levels consistently greater than 12 per cent that has Australian durum in demand globally.
Durum has been grown in New South Wales since the 1950s in areas that have higher rainfall and more nutrient rich soils than southern Australia.
The durum breeding program at the University of Adelaide has ongoing support from many industry stakeholders with major co-investors including the Grains Research and Development Corporation (GRDC), South Australian Grain Industry Trust (SAGIT), pasta company San Remo, Southern Australia Durum Growers Association (SADGA) and the NSW Department of Primary Industries.
The university has bred many varieties in recent years including DBA-Aurora in 2014, which has been a step-change variety and one in which has been hailed as a “turning point”, particularly in the southern region of Australia.
When compared to older varieties, Aurora has led to significantly increased yield potential in more non-traditional areas, greater resilience to disease and cemented Australia’s durum among the highest quality in the world.