The arable part of the land has often been used for the propagation of planting material for plants in general and passiflora in particular. Unfortunately, the growth of these plants is still not optimal on this substrate. It is therefore necessary to evaluate the growth of passiflora in nurseries on various substrates. The objective of this study is to evaluate the effect of various substrates on the growth of passion fruit in nurseries in order to improve its production. Seeds from purple and yellow varieties of passion fruit were sown on five substrates (composted sawdust (S1), forest topsoil (S2), a mixture of forest topsoil and sawdust ash (S3), soil from the experimental plot (S4), and a mixture of soil from the experimental plot and composted sawdust (S5) in polyethylene bags) using a split-plot design. The main results showed that the strongest growth was induced by S3, with a height of 24 cm, a diameter of 3.6 mm, and 10 leaves. In contrast, S1 and S5 induced the weakest growth, with lengths of 7 and 12 cm, diameters of 1.3 mm, and six leaves. However, this growth was optimal with the purple variety.
