| Researcher(s) |
Rebekah Allen Declan Anderson |
|---|---|
| Year(s) | 2022 |
| Contributor | Hart Field Site Group |
| Trial location(s) |
Hart, SA
|
| Further information | View external link |
• Marginal summer rainfall leading into the 2022 season at Hart resulted in dry conditions, and marginal soil moisture at depth.
• Commercial wheat varieties with longer coleoptiles had improved crop establishment when sown deep, with Bale (133 plants/m2) and Calibre (130 plants/m2) having better crop establishment when compared to Scepter (118 plants/m2).
• Results show that pre-breeding line Mace18 had reduced yield when sown at standard depth (40 mm) after the season break on May 30. This result was also observed at other trial locations (Rebetzke et al 2022) with the reason currently unknown.
• Yield losses were observed for Mace and Scout when sown deep, showing that the Rht18 gene in these varieties provides benefits, allowing growers to sow deeper.
• In years where small and infrequent rainfall events occur, standard sowing (40 mm) may reduce establishment when crops are sown early in drier conditions. Long coleoptile wheats can reduce this risk by deeper sowing into subsoil moisture when conditions are favourable.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Related program | N/A |
| Acknowledgments |
The Hart Field-Site Group would like to acknowledge the generous support of our sponsors who provide funding that allows us to conduct this trial. Proceeds from Hart’s ongoing commercial crop also support Hart’s research and extension program. |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated |
| Sow date | 10 June 2022 |
|---|---|
| Harvest date | 15 December 2022 |
| Trial design method | SPD Split Plot Design |
| Plot size | 1.75m x 10.0m |
| Plot replication | 3 |
| Plot randomisation | Y |
| Fertiliser |
Seeding: DAP (18:20) Zn 1% + Impact @ 80 kg/ha |
SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to
construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol
16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.
