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Characterization of grapevine and apple tree canopies in relation to light penetration

Characterization of grapevine and apple tree canopies in relation to light penetration

Horticultural Science 27(3/4): 85-90

Photosynthetically active radiation (PAR) was measured on a grid placed on a vertical screen placed perpendicularly to the row direction. Repetition of this measurement several times along the row produced a statistical sample which by analysis could distinguish layers of different light intensity. This negative binomial model could be used for calculating the leaf area in the canopy.

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