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Chlorophyll and nitrogen determination for plantation-grown Eucalyptus nitens and E. globulus using a non-destructive meter


Pinkard, E and Patel, VS and Mohammed, CL, Chlorophyll and nitrogen determination for plantation-grown Eucalyptus nitens and E. globulus using a non-destructive meter, Forest Ecology and Management, 223, (1-3) pp. 211-217. ISSN 0378-1127 (2006) [Refereed Article]

DOI: doi:10.1016/j.foreco.2005.11.003


Portable non-destructive meters are used successfully with many species for estimating foliar chlorophyll or nitrogen (N) content. In this study, we investigated the use of the Minolta SPAD-502 for estimating chlorophyll and N content of Eucalyptus nitens and E. globulus foliage. This meter measures leaf absorbance at wavelengths 650 and 940 nm to estimate chlorophyll or N. The accuracy of the SPAD was determined, and the effects of species, site and plant type (pot-grown versus field-grown) on the SPAD-chlorophyll or SPAD-N relationship were examined. There was a strong curvilinear relationship between foliar chlorophyll content and the SPAD chlorophyll index (CI). This relationship was species-specific, and could be applied to similar-aged E. globulus grown at two contrasting sites. It differed between pot- and field-grown plants, indicating that separate calibration curves may be required for glasshouse and field situations. It was concluded that the SPAD-502 is a useful tool for screening foliar chlorophyll content in E. globulus and E. nitens plantations if adequately calibrated. The SPAD proved less useful in estimating foliar N content; only a weak relationship existed between foliar N and CI for E. globulus and E. nitens. © 2005 Elsevier B.V. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Forestry sciences
Research Field:Forestry sciences not elsewhere classified
Objective Division:Plant Production and Plant Primary Products
Objective Group:Other plant production and plant primary products
Objective Field:Other plant production and plant primary products not elsewhere classified
UTAS Author:Pinkard, E (Dr Elizabeth Pinkard)
UTAS Author:Patel, VS (Mr Vinu Patel)
UTAS Author:Mohammed, CL (Professor Caroline Mohammed)
ID Code:39718
Year Published:2006
Web of Science® Times Cited:72
Deposited By:Agricultural Science
Deposited On:2006-08-01
Last Modified:2007-04-18

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