الفهرس 
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Abstract
The objective of this study was to determine the optimal water amount for Moringa productivity even under salinity conditions and to ensure getting better quality and more substances that are active from it for human nutrition.
Pot experiments were conducted in the open field at a private farm in El-Monoufia Governorate, Egypt. The experiments of this research study took place during the two successive cropping seasons of 2020 and 2021. The experiments were carried out in a randomized complete-block design (RCBD) with three replicates, where the three water regimes were assigned to the main sections and the four salinity levels were accredited to the sub-main sections.
During the growing seasons of both 2020 and 2021, Moringa seedlings were irrigated with 12 different combinations using three water quantities, i.e., 100, 75, and 50% of irrigation requirement, and four salinity levels, i.e., non-saline control, 2000, 3000, and 4000 ppm (NaCl from Rashid salt).
The obtained results indicated that decreasing irrigation water quantity from 100 to 50% of irrigation requirement negatively affected all vegetative growth characteristics of Moringa, reduced herb yield, and decreased the contents of essential nutrients, crude protein, vitamin C, and total chlorophyll content, albeit the variations between 100 and 75% of irrigation requirement sometimes were not significant.
On the other hand, increasing salinity levels gradually reduced all vegetative growth characteristics of Moringa, reduced herb yield, and decreased the essential nutrients, crude protein, vitamin C, and total chlorophyll, albeit the variations between the lowest salinity level (2000 ppm) and non-saline (control) sometimes were not significant.
Notably, dry matter percentage, Na and Cl contents and proline were increased with both decreasing irrigation water quantity and increasing salinity level.