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Plant growth regulators in broad acre crops

conference contribution
posted on 2023-05-23, 18:42 authored by Tina AcunaTina Acuna, Merry, AM, Geoffrey DeanGeoffrey Dean, Anna CarewAnna Carew, Peat Leith, Nelson, R

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.

Funding

Grains Research & Development Corporation

History

Publication title

GRDC Grains Research Update for Advisers

Pagination

83-87

Department/School

School of Architecture and Design

Event title

GRDC Grains Research Update for Advisers

Event Venue

Adelaide SA

Date of Event (Start Date)

2014-02-25

Date of Event (End Date)

2014-02-26

Repository Status

  • Restricted

Socio-economic Objectives

Wheat

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    University Of Tasmania

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