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Dry matter production of winter wheat, cultivars ‘Brennan’ and ‘Revenue’, does not increase after application of gibberellic acid


Merry, AM and Corkrey, R and Dean, G and Johnson, P and Acuna, TB, Dry matter production of winter wheat, cultivars Brennan' and Revenue', does not increase after application of gibberellic acid, Proceedings from the 18th Australian Agronomy Conference 2017, 24-28 September 2017, Ballarat, Victoria, pp. 1-4. (2017) [Refereed Conference Paper]

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Copyright 2017 the Authors and the Australian Society of Agronomy

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Winter wheat is often grown as a dual-purpose crop in the High Rainfall Zone (HRZ) of Australia. To help fill the winter feed gap there is grower interest in increasing winter dry matter production for feed without adversely affecting yield. Gibberellic acid (GA) has been used to increase pasture production in winter by stimulating shoot and cell elongation. GA has the potential to be used in dual-purpose winter wheat to increase dry matter production following initial grazing and thereby increase feed supply for subsequent grazing. Adding nitrogen (N) at the time of treatment has been shown to increase dry matter production. Experiments on winter wheat cultivars ‘Brennan’ and ‘Revenue’ were conducted over three seasons (2010 – 2012) in northern Tasmania. Crops were treated with varying rates and combinations of GA and nitrogen (N). Experiments evaluated the individual and combined effects of GA and N on dry matter production and grain yield. Treatments did not increase dry matter yield in these experiments, nor did they adversely affect yield.

Item Details

Item Type:Refereed Conference Paper
Keywords:nitrogen, yield, Bayesian
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Crop and pasture production
Research Field:Crop and pasture production not elsewhere classified
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural crops
Objective Field:Horticultural crops not elsewhere classified
UTAS Author:Merry, AM (Dr Angela Merry)
UTAS Author:Corkrey, R (Dr Ross Corkrey)
UTAS Author:Dean, G (Mr Geoffrey Dean)
UTAS Author:Johnson, P (Dr Peter Johnson)
UTAS Author:Acuna, TB (Associate Professor Tina Acuna)
ID Code:118207
Year Published:2017
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2017-07-06
Last Modified:2018-05-23

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