The SPAD chlorophyll meter: a potential rapid, nondestructive method of leaf N monitoring in lentil
Date
2007-03-01Author
Zakeri, H.
Bueckert, R.
Type
Poster PresentationPeer Reviewed Status
Non-Peer ReviewedMetadata
Show full item recordAbstract
The SPAD Chlorophyll Meter (SPAD) measures the chlorophyll content of leaves, and
can be used to estimate the nitrogen status of plants as an alternative to the nitrate tissue test. The leaf nitrogen monitoring in experimental plots consists of sampling, drying, weighing, grinding and finally the N measurement of the leaves. Data obtained in some crops like wheat, maize, barley and peanut from the SPAD chlorophyll meter showed reasonable estimation of leaf nitrogen characters (LNCs): %leaf N, specific leaf weight (SLW) and specific leaf nitrogen (SLN). Leaf color and the resulting SPAD reading
however, may vary by cultivar, soil and air temperature; planting date, leaf stage, leaf
position, plant disease, nutrient deficiency and plant stress. In this study, we hypothesized that the SPAD reading in lentil leaves could estimate leaf nitrogen content.
Part Of
Soils and Crops WorkshopCollections
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