The study evaluated solar radiation interception patterns (K*) defining the relations of interception efficiency (εint) and extinction coefficient (k) of coffee trees (cv. Obatã IAC 1669-20) under leaf area changes. Aiming to determine these interactions for coffee plants (3 years old) under manual defoliations, solar radiation transmitted was measured with two tube solarimeters placed at ground level below the...
Irrigated areas present environmental variables such as vapor pressure deficit (DPV) and modified air temperature. The stomatal response is not only affected by these modified environmental conditions, but also by others such as canopy temperature. Thus, an irrigated bean crop tend to present modifications in stomatal conductance (Gva) and transpiration in relation to a non irrigated common bean crop. Gva and t...