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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/81310
- An FTIR study of the induction and release of kiwifruit buds from dormancy
- Judd, Murray J.; Meyer, Denny H.; Meekings, John S.; Richardson, Annette C.; Walton, Eric F.
- Background: Many deciduous, perennial fruit crops require winter chilling for adequate budbreak and flowering. Recent research has shown that changes in sugar and amino acid profiles are associated with the release of buds from dormancy. This paper uses FTIR spectrometry to provide an alternative mechanism for tracking metabolic changes in themeristems of kiwifruit buds during winter dormancy. The results suggest that the application of multivariate analysis to FTIR spectra has the potential to be a reliable and fast method for detecting structural and compositional changes in fruit crops. Results: Ten wave numbers of the FTIR spectra are used to calculate a bud development function. This function has been validated using data from two seasons and four orchards, and by monitoring the effects of hydrogen cyanamide application, sugar concentrations and soil temperatures on this function. These wave numbers appear to be associated with carbohydrate, pectin and cellulose levels in the meristems. Conclusion: It is expected that this FTIR signature can be used to advance our understanding of the influence of the various environmental and physiological factors on the breaking of bud dormancy and shoot outgrowth, including the optimum timing and concentrations of applications of budbreak regulators, such as hydrogen cyanamide.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Life and Social Sciences
- Journal of the Science of Food and Agriculture, Vol. 90, no. 6 (Apr 2010), pp. 1071-1080
- Publication year
- FOR Code(s)
- 070301 Agro-ecosystem Function and Prediction; 070303 Crop and Pasture Biochemistry and Physiology; 010404 Probability Theory
- Bud development; Canonical discriminant analysis; Kiwifruit; Fourier transform infrared-based method; Fruit crops; FTIR spectroscopy
- John Wiley & Sons
- Publisher URL
- Copyright © 2010 Society of Chemical Industry.
- Peer reviewed