How is the LCC used to determine leaf color?
• Use the following procedure to determine leaf color of rice in a field: • Randomly select at least 10 disease-free rice plants or hills in a field with uniform plant population. • Select the topmost fully expanded leaf from each hill or plant. Place the middle part of the leaf on a chart and compare the leaf color with the color panels of the LCC. Do not detach or destroy the leaf. • Measure the leaf color under the shade of your body, because direct sunlight affects leaf color readings. If possible, the same person should take LCC readings at the same time of the day every time. • Determine the average LCC reading for the selected leaves.
