Fig. 3From: Surface growth stress and wood properties of 8-year-old planted Big-leaf mahogany (Swietenia macrophylla King) from different landrace provenances and trial sites in the PhilippinesThe longitudinal released strain of surface growth stress (SRS) in tested trees in six landrace provenances at two trial sites a SRS (%) at Butuan trial site and b SRS (%) at Cagayan de Oro trial site. All the values are the averaged (filled square), with ± 1 standard deviation in each provenanceBack to article page