Meckering WA trials

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Trial	Contributor Funding sources	Year	Trial site

An investigation of long coleoptile wheat for WA farming systems This trial was designed as a scoping study to investigate various aspects of long coleoptile wheat relative to WA farming systems for eventual grower integration. However, this report outlines both observations as well as extensive data that was collected and analysed, despite the original aim of the trail to be more investigatory than data-driven in nature. The main area of research was investigating the novel Rht18 gene in wheat, which allows for an elongated coleoptile: a protective sheath around the emerging shoot from a seed. Mace/Scepter typically have 40-60 mm coleoptiles (depending on environmental factors). New varieties developed by CSIRO with the Rht18 gene can extend to 12-140 mm by comparison. This 2-year project has assessed long coleoptile wheat applications to farming systems in WA across emergence, establishment, weed competition, rhizoctonia impacts, herbicide interactions and yield. Extension across sites has aided in discussions with growers and areas requiring further study for integration to grower systems. While investigatory in nature, 2022 trials outlined in this report aimed to be more data driven in nature than trials conducted in 2021. The two-year scoping study aimed to achieve the following objectives for investigate various aspects of long coleoptile wheat relative to WA farming systems for eventual grower integration: • Extend long coleoptile findings and discussions to growers across agricultural regions of Western Australia • Quantify differences in emergence from deep and shallow sown varieties with varying coleoptile lengths. • Investigate emergence through furrow fill from wind and rain events. • Investigate emergence from uneven soil platforms, such as from deep-ripping • Investigate emergence through both low and high soil temperatures. • Explore biomass and vigour differences between varieties with and without the Rht18 gene. • Quantify differences in annual ryegrass competition and wheat vigour interactions with grass weeds. • Explore herbicide interactions across depths of sowing to investigate crop safety and ways of adjusting/changing IBS and EPE herbicides. • Explore rhizoctonia wheat root infection between depths of sowing. • Analyse grain yield of various varieties and coleoptile lengths, including Rht18 wheat.	SLR Agriculture	2022	Meckering WA
Research organisaton
An investigation of long coleoptile wheat for WA farming systems- herbicides To explore herbicide interactions across depths of sowing to investigate crop safety and ways of adjusting/changing IBS and EPE herbicides.	SLR Agriculture GRDC	2022	Meckering WA
Research organisaton