Information and photos supplied by Southern Cross University
A breakthrough research project at Southern Cross University is set to explore one of the most fascinating aspects of the hemp plant, how it determines sex, with the aim of boosting hemp seed yields by up to 50%. If successful, the findings could dramatically increase productivity for Australian growers and bring more affordable hemp foods to consumers.
Unlocking Hemp’s Hidden Potential
Hemp plants are typically either male or female. Male plants play a vital role in pollination, but they don’t produce seed, which means yields are often low and unpredictable. Current methods to induce seed production in male plants rely on agrochemicals, but researchers believe a genetic solution could provide a more sustainable and effective alternative.
The project, titled “Swinging both ways – the genetic control of sex expression in hemp”, has been awarded a $560,000 Australian Research Council Linkage grant, with Kavasil Pty Ltd as the industry partner. By characterising the sex-determining genes in low-THC cannabis, the team hopes to modify male plants so that they can produce both pollen and seed.
Why It Matters
Professor Tobias Kretzschmar, lead investigator at Southern Cross University, says the impact of this research could be huge:
“If we can boost seed production, that in turn will boost profitability for farmers and ultimately lower the cost of hempseed products for consumers.”
For growers, increased and more predictable yields would reduce risk and improve returns. For consumers, it could mean wider availability and more affordable hemp oils, proteins, and other health foods.
Industry Backing
Industry partner Kavasil Pty Ltd, led by founder and CEO Andrew Kavasilas, is focused on developing high-value hempseed as a functional food. He welcomed the grant as a milestone for the sector:
“Increasing yields and predictability will help further develop our capacity to supply the domestic markets and supply chain with high-quality Australian-grown hempseed and related products.”
Building on a Strong Research Base
This new project builds on Southern Cross University’s growing expertise in hemp science. In 2022, the university secured a $500,000 grant to advance hempseed nutritional and functional research, also in partnership with Kavasil.
The university is also leading the Australian Industrial Hemp Program of Research, a five-year initiative funded by AgriFutures Australia, which brings together researchers, government, and industry to strengthen the national hemp sector.
Key focus areas include:
- Improving hemp genetics
- Optimising agronomy techniques
- Adding value to hempseed products
- Measuring sustainability outcomes
Together, these efforts are positioning hemp as one of Australia’s most promising new crops, combining profitability with environmental benefits.
