Other Developing Areas. Countries such as Brazil, Sri Lanka, and Kenya that have commercial passionfruit production should explore the potential of the other species, including those from the Andes. Among such lesser known species are some with bigger and juicier fruits as well as different flavors from today's common passionfruit.
These vines are possibly useful in agroforestry systems with trees used as supports. The combination might be good for both tropical highlands and lowlands throughout Africa, Asia, and Latin America.
Many tropical and subtropical countries with land suitable for cultivating passionfruits are not now exploiting them. The knowledge to grow the plants is available and trials should be undertaken, but caution should be exercised because the economics of their production is uncertain, given their generally primitive horticultural state and because some species are so prolific they might become weeds.
Industrialized Regions. New Zealand, Australia, South Africa, and a few other warm-temperate regions produce the common passionfruit for commerce as well as for backyard planting. Species from the Andes could strengthen such enterprises by possibly adding a few degrees of extra cold tolerance,18 by providing sweeter or different tasting fruits, as well as by perhaps increasing the fruit size. In drinks and other processed products, a great future is likely to be found.
Hybrids between the different passionfruit species may provide important new fruits, perhaps larger, maybe seedless, and probably more robust in their growth.