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Plant growth regulators in broad acre crops


Acuna, TL and Merry, AM and Dean, GJ and Carew, ALJ and Leith, PB and Nelson, R, Plant growth regulators in broad acre crops, GRDC Grains Research Update for Advisers, 25-26 February 2014, Adelaide SA, pp. 83-87. (2014) [Non Refereed Conference Paper]

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Take home messages:

• PGRs are generally accepted to reduce plant height in grain cereals when applied at the appropriate stage of development; improvement in grain yield tends to be inconsistent

• A survey of 142 Australian agronomists found that only 20% recommend the use of PGRs in crop management of wheat, mainly due to improved lodging resistance followed by height reduction and improved yield

• Reasons why agronomists don’t recommend PGR use in the crops they manage were because they were ‘not needed’ or unsuited to their region

• Application of PGR with no change in yield from e.g. a 2.38 Mha area (representing 70% of the HRZ) would lead to a cost of around $70M. In contrast, there would be a net benefit of around $35M and $138M for a 5 and 10% change in grain yield in the HRZ.

Item Details

Item Type:Non Refereed Conference Paper
Keywords:wheat, barley, canola, plant growth regulators, survey
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Crop and pasture production
Research Field:Agronomy
Objective Division:Plant Production and Plant Primary Products
Objective Group:Grains and seeds
Objective Field:Wheat
UTAS Author:Acuna, TL (Professor Tina Acuna)
UTAS Author:Merry, AM (Dr Angela Merry)
UTAS Author:Dean, GJ (Mr Geoffrey Dean)
UTAS Author:Carew, ALJ (Dr Anna Carew)
UTAS Author:Leith, PB (Dr Peat Leith)
UTAS Author:Nelson, R (Associate Professor Rohan Nelson)
ID Code:118036
Year Published:2014
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2017-07-01
Last Modified:2017-07-03

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