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Radiation Use Efficiency
Radiation use efficiency (RUE) is important in understanding and modeling the relationship
between plant growth and the physical environment. Crop growth can be described
as the product of the incident Photo synthetically Active Radiation (PAR); the fraction
(f) of PAR intercepted by green leaf (f); and the ‘efficiency’ with which the PAR
is used as Radiation Use Efficiency (RUE). PAR depends on the location and time
of year while seasonal fraction (f) is affected by the duration and the area of
the canopy. Radiation Use Efficiency (RUE) is defined as the ratio of dry matter
produced to absorbed photosynthetically active radiation (APAR). It is usually measured
in grams of dry matter per mega joule (g DM MJ-1). Read More...
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