Effect of Salinity and Nitrogen Form in Irrigation Water on Growth, Antioxidants and Fatty Acids Profiles in Halophytes Salsola australis, Suaeda maritima, and Enchylaena tomentosa for a Perspective of Biosaline Agriculture

Cultivation of salt-tolerant crops help to face irreversible global salinization freshwater and soils. In New-Caledonia, three halophytes are candidates for saline crops, Salsola australis R.Br., Suaeda maritima (L.) Dumort Enchylaena tomentosa R.Br. Their success quality depend yet on availabilities salinity essential nutrients in agrosystems. So, we investigated effects salinities, i.e., control moderate high, five nitrogen ratios, 100:0, 75:25, 50:50, 25:75 or 0:100 NO3−-N:NH4+-N ratio their growth functional value fatty acids antioxidants. Results show that the leaf acid antioxidant profiles species, emphasize good potential become crop products, based comparison with other plants, dietetic recommendation, indices. However, total phenolic compounds (TPC) content can be influenced by N-ratio (Suaeda tomentosa) activity index (AAI) maritima), (Salsola australis) both (Enchylaenatomentosa). quantitative and/or qualitative also (Enchylaena tomentosa), australis). Regarding these variations, involving salt tolerance nutrition mechanisms, recommend suitable treatments maintain optimize leaves species.