26/10/2026
Researchers have been investigating the effects of different leaf removal methods and timings on carbohydrate reserves to improve crop load.
Over the past two seasons, the NSW Department of Primary Industries & Regional Development has conducted a proof-of-concept research project at Tingira orchard, Batlow, within the PIPS 4 Profit 'Optimising apple production systems' (AP22004) project.
The experiment aimed to determine effective defoliation methods and timing to manipulate carbohydrate reserves to better manage crop load. Now that the experiment is complete, the research team has prepared an overview of the rationale and findings of this work.
Read more: https://apal.org.au/the-role-of-carbohydrate-reserves-and-spring-assimilation-on-fruit-set/
Hort Innovation, Agriculture Victoria, Tasmanian Institute of Agriculture, Department of Primary Industries and Regional Development, Primary Industries and Regional Development, NSW Agriculture, Fruit Producers SA
The PIPS 4 Profit Optimising apple production systems (AP22004) project has been funded by Hort Innovation using the apple and pear research and development levy, contributions from the Australian Government and co-investment from the Tasmanian Institute of Agriculture, Agriculture Victoria, and the NSW and WA Departments of Primary Industries and Regional Development. Hort Innovation is the grower-owned, not-for-profit research and development corporation for Australian horticulture.