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T1  - Sunflecks in the upper canopy : dynamics of light-use efficiency in sun and shade leaves of Fagus sylvatica 
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UR  - http://hdl.handle.net/10138/346666 
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A1  - Durand, Maxime; Stangl, Zsofia R.; Salmon, Yann; Burgess, Alexandra J.; Murchie, Erik H.; Robson, T. Matthew 
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Y1  - 2022 
LA  - eng 
AB  - Sunflecks are transient patches of direct radiation that provide a substantial proportion of the daily irradiance to leaves in the lower canopy. In this position, faster photosynthetic induction would allow for higher sunfleck-use efficiency, as is commonly reported in the literature. Yet, when sunflecks are too few and far between, it may be more beneficial for shade leaves to prioritize efficient photosynthesis under shade. We investigated the temporal dynamics of photosynthetic induction, rec... 
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KW  - canopy vertical gradients; Fagus sylvatica; photosynthetic induction; provenance trial; stomatal dynamics; sun and shade leaves; sunfleck; TROPICAL RAIN-FOREST; PHOTOSYNTHETIC INDUCTION; PIGMENT COMPOSITION; GAS-EXCHANGE; MESOPHYLL CONDUCTANCE; STOMATAL RESPONSES; ENERGY-DISSIPATION; VERTICAL GRADIENT; FLUCTUATING LIGHT; STEADY-STATE; 11831 Plant biology 
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