Current research interests include the genes that allow plants to withstand salinity. Barley can tolerate saltwater, tomato accepts brackish well water, but soy much less. The hope is to be able to generalize irrigation with saltwater. The Netherlands successfully grow potatoes in seawater.
Currently, overpumping of groundwater aquifers combined with rising sea levels makes it unsuitable for agriculture from 1 to 1.5 billion hectares of agricultural land due to the infiltration of sea water inland . Climate change will increase this depriving more and more places in the world space traditionally reserved for the production of food. An estimated 50% of agricultural land in the world are threatened by salinization. A leading issue raised by the World Bank, NGOs, governments and many environmentalists.
The potato development tolerant to more saline water therefore meets a need. From a selection of the thousands of existing varieties, these potatoes developed by natural selection outside the laboratory do not contain GMOs. Marc van Rijsselberghe in collaboration with the Free University of Amsterdam led the development of two varieties of potatoes tolerant to saline water to SaltFarmTexel the Netherlands.
Vegetables grown in saline water compensate by generating more sugar. Thus, strawberries harvested on the farm are very sweet. Other strategic plants are developed such as beets or fennel. This type of culture of potato enhances the taste of potatoes providing them a taste of the most popular. Already one hundred restaurants use these products and potato cultivars are exported to Pakistan.