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Canopy cover and leaf area index relationships for wheat, triticale, and corn
- Previously collected data sets that would be useful for calibrating and validating AquaCrop contain only leaf area index (LAI) data but could be used if relationships were available relating LAI to canopy cover (CC). The objective of this experiment was to determine relationships between LAI and CC for corn (Zea mays L.), winter wheat (Triticum aestivum L.), and spring triticale (xTriticosecale spp.) grown under dryland or very limited irrigation conditions. The LAI and CC data were collected during 2010 and 2011 at Akron, CO, and Sidney, NE, using a plant canopy analyzer and point analysis of above-canopy digital photographs. Strong relationships were found between LAI and CC that followed the exponential rise to a maximum form. The relationship for corn was similar to a previously published relationship for LAI <2 m2 m–2 but predicted lower CC for greater LAI. Relationships for wheat and triticale were similar to each other.
Nielsen, David , Miceli-Garcia, Juan J. , Lyon, Drew J.
Triticosecale , Triticum aestivum , Zea mays , arid lands , canopy , corn , leaf area index , triticale , winter wheat
- Includes references
- Agronomy journal 2012 Nov-Dec, v. 104, no. 6
Journal Articles, USDA Authors, Peer-Reviewed
- Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.