2006
DOI: 10.1080/00103620500449385
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Assessing Variations in SPAD‐502 Chlorophyll Meter Measurements and Their Relationships with Nutrient Content of Trembling Aspen Foliage

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Cited by 27 publications
(15 citation statements)
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“…Recently, in trembling aspen (P. tremuloides, Michx), Bonneville and Fyles (2006) showed a similar relationship between SPAD values and N reported as a coefficient of correlation of r = 0.63 (r 2 = 0.40). These findings seem to indicate that in the first fully expanded leaf (where Fe deficiency is expected to be encountered in sensitive hybrid poplars grown on elevated pH soil), Fe rather than N is more important in determining chlorophyll content.…”
Section: Discussionmentioning
confidence: 65%
“…Recently, in trembling aspen (P. tremuloides, Michx), Bonneville and Fyles (2006) showed a similar relationship between SPAD values and N reported as a coefficient of correlation of r = 0.63 (r 2 = 0.40). These findings seem to indicate that in the first fully expanded leaf (where Fe deficiency is expected to be encountered in sensitive hybrid poplars grown on elevated pH soil), Fe rather than N is more important in determining chlorophyll content.…”
Section: Discussionmentioning
confidence: 65%
“…SPAD values calculate relative chlorophyll content based on the amount of light transmitted by the leaves at two different wavelengths: red (650 nm) and near infrared (940 nm). In agriculture, the SPAD meter is often used to improve N management and increase yields by predicting N status and determining fertilization requirements [35]. In this case, 5 plants were sampled from each plot and three readings were taken from each selected ear leaf: from the base, middle and top of each plant.…”
Section: Remote and Proximal Sensing Data Acquisition And Analysismentioning
confidence: 99%
“…SPAD differentiated up to 86% of the maximum yield, confirming the usefulness of chlorophyll meters for predicting grain yield [37,53,81]. However, PltH was partially useful for grain yield prediction (differentiating up to 56% of the maximum grain yield).…”
Section: Correlation Between Vegetation Indices Spad and Plant Heighmentioning
confidence: 69%
“…Non-destructive chlorophyll readings were taken at VT using a small, lightweight, portable, hand-held meter (SPAD-502, indirect chlorophyll meter; MinoltaCorp, Ramsey, NJ, USA). In agriculture, the SPAD meter is widely accepted to improve N management by predicting N status and determining fertilization requirements [53]. SPAD values indirectly evaluate the leaf chlorophyll content based on the amount of light transmitted by the leaves at two different wavelengths: red (650 nm) and near infrared (940 nm).…”
Section: Vegetation Indexmentioning
confidence: 99%