The Relationship between SPAD Values and Leaf Blade Chlorophyll Content throughout the Rice Development Cycle

The Soil and Plant Analyzer Development (SPAD) meter is a chlorophyll meter used worldwide due to its convenience. The present study was conducted to investigate the relationship between SPAD values and rice leaf blade chlorophyll content throughout the entire rice development cycle, and determine whether it is possible to apply a nonlinear model to the relationship. A field experiment was conducted in which the rice communities of two cultivars...