The Agricultural Electronics Corporation, manufacturers: * PHYTOGRAM, a precision sensing and measurement capability for inside the plant assays of a plant or tree's internal hydration status, growth rate, metabolic activity, and reaction to field treatments, environmental conditions and plant pathogens., * Manual Band Dendrometers - for visual yet precise sensing of external growth in plants and trees., * Automatic Point and Band Dendrometers- for precise electronic sensing of stem radius or circumference changes at defined intervals over any desired period of time., * Automatic Root Dendrometers - for measurement of diurnal cycles and growth rates of roots near the surface
