Effects of defoliation on flower development in atemoya custard apple (Annona cherimola Mill. × A. squamosa L.) and implications for flower-development modelling
Trevor Olesen A B C and Steven J. Muldoon A
+ Author Affiliations
- Author Affiliations
A Agriculture NSW, 1243 Bruxner Highway, Wollongbar, NSW 2477, Australia.
B School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia.
C Corresponding author. Email: trevor.olesen@industry.nsw.gov.au
Australian Journal of Botany 60(2) 160-164 https://doi.org/10.1071/BT11299
Submitted: 12 December 2011 Accepted: 6 February 2012 Published: 19 March 2012
Abstract
The effects of different levels of carbon limitation on the flower development of custard apple were studied in two defoliation experiments. The duration of flower development was unaffected by moderate carbon limitation, but increased with severe limitation. Both moderate and severe limitation caused a decrease in flower dry weight. Some of the data collected were combined with data from an earlier study to develop a model of the dependency of the duration of flower development on temperature. The model was applied to long-term weather records from Alstonville, northern New South Wales, to illustrate the effects of late 20th century warming on the duration of flower development.
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