Abstract
Whilst there has been some progress in defining optimal flowering periods for wheat, they have not been adequately defined for barley. Our understanding of the specific interactions between phenology and environment in barley, and the differences between the cereal species is limited. Time of sowing field experiments for wheat and barley were sown adjacently in two contrasting seasons at Wagga Wagga (2018) and Marrar (2019) in southern NSW and a comparative analysis conducted to determine differences in flowering time of barley, relative to wheat. The optimal flowering period, whereby yield was maximised for
barley, was broader and earlier than for wheat in both seasons suggesting this is unlikely to be driven by frost tolerance alone. Barley had higher grain yields and accumulated more biomass compared to wheat, particularly at earlier flowering times indicating barley is better able to accumulate biomass during winter under low radiation and cool temperatures. This affirms there are differences in phenology, tolerance to abiotic stresses and yield physiology between wheat and barley and presents a management opportunity for growers in southern Australia.
barley, was broader and earlier than for wheat in both seasons suggesting this is unlikely to be driven by frost tolerance alone. Barley had higher grain yields and accumulated more biomass compared to wheat, particularly at earlier flowering times indicating barley is better able to accumulate biomass during winter under low radiation and cool temperatures. This affirms there are differences in phenology, tolerance to abiotic stresses and yield physiology between wheat and barley and presents a management opportunity for growers in southern Australia.
| Original language | English |
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| Title of host publication | Systems Solutions for Complex Problems |
| Subtitle of host publication | Proceedings of the 20th Australian Agronomy Conference |
| Editors | Lindsay Bell, C. Bhagirath |
| Place of Publication | Australia |
| Publisher | Australian Society of Agronomy |
| Number of pages | 4 |
| Publication status | Published - 2022 |
| Event | 20th Australian Agronomy Conference - Empire Theatre, Toowoomba, Australia Duration: 18 Sept 2022 → 22 Sept 2022 https://agronomyconference.com/2022-conference/ (Conference website ) https://www.agronomyaustraliaproceedings.org/index.php/2022 (Proceedings) |
Conference
| Conference | 20th Australian Agronomy Conference |
|---|---|
| Abbreviated title | System solutions for complex problems |
| Country/Territory | Australia |
| City | Toowoomba |
| Period | 18/09/22 → 22/09/22 |
| Other | The theme of the conference is System Solutions for Complex Problems. The theme underpins the need to strengthen collaborations between practitioners and researchers from a wide range of disciplinary backgrounds to address increasingly complex problems and uncertainties. So, the question is not If, but when and how, multidisciplinary collaborations will be developed. The 20th Australian Agronomy Conference will feature leading international and national speakers addressing issues such as the need to foster soil biology for enduring profitability, carbon sequestration, herbicide resistance, and the interwoven relationships between food production, energy and the environment. We will discuss and share our latest research findings amongst circa 300 agronomists from Australia and the world, as well as farmers, consultants, agribusinesses and farmer peak bodies. |
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