Nutraceutical, phytochemical, intercropping and morpho-physiological response of Tetragonia decumbens Mill. to salt-stress: A promising wild leafy vegetable for bio-saline agriculture in South Africa

Soil salinity causes devastating crop loses globally which has impacted agricultural production globally. The use of resilient crops like edible halophytes could fulfil the increasing food demand escalated by the increasing human population. Thus, this research project aimed at assessing the nutraceutical, phytochemical, intercropping and morpho-physiological response of a South African halophyte (Tetragonia decumbens) to salt- stress to further support its domestication, consumption, and cultivation among South African households and in regions affected by salinity. The findings validated the nutritional potential of this halophyte due to its high mineral and proximate constituents. This is a strong indication that the cultivation of this species will be of immense value in achieving nutrient diversity and food security. For the first time, 98 chemical compounds were reported in saline cultivated Tetragonia decumbens most of which have potent overlapping medicinal benefits and can be further explored as potential therapeutic agents for the treatment of inflammation, diabetes and Alzheimer’s disease. Lastly, this research project has produced five publications in top-rated journals accredited by the Department of Higher Education and Training, South Africa.