Extending the commercial waratah flowering season outside the current 56 week range has long been a major goal for development of the waratah industry. However precise information on the environmental cues which initiate and control flowering are unknown, resulting in unpredictable yields and profitability. This project aims to provide an understanding of the mechanisms that control flowering and use the information to extend the timing of anthesis to meet peak demand periods, such as Christmas and Valentine’s Day, when premium prices are be paid for red inflorescences. By understanding the phenology of flowering, the potential impacts of climate change on natural and commercial stands of waratah can be better understood and managed.
New and Emerging Plant Industries
The University of Sydney
Aim: The aim of this project is to understand the environmental cues which initiate and control flowering in waratahs and to use that information to improve profitability through better prediction of yield and extension of flowering season. Objectives: The project will examine the contribution of temperature (growing degree hours), day length, age, size and nutritional status of stems to flower induction, initiation and development in six waratah cultivars. Based on that information, we will investigate the influence of growth regulators and canopy management in manipulating timing of anthesis. Specifically the expected outcomes are: understanding environmental cues that control flowering in waratah cultivars increased profitability through ability to predict and manage flowering more precisely recommendations for pruning and canopy management to produce high quality blooms for target markets an understanding of the effect of growth regulators to manipulate timing of flowering improved ability to match selected cultivar performance to specific growing regions reduction of oversupply in Spring and ability to capitalise on early and late season prices new understanding of environmental influences on waratah flowering and the potential impacts of climate change.
Project Start Date
Friday, June 24, 2011
Project Completion Date
Friday, May 30, 2014
Journal Articles From Project
An environmentally sustainable Australia
Adoption of R&D
NEPI-Industry building and connectivity