Abdelkhalik Abdelsattar, Gyushi Mohammed A H, Howladar Saad M, Kutby Abeer M, Asiri Nouf A, Baeshen Areej A, Nahari Aziza M, Alsamadany Hameed, Semida Wael M
Horticulture Department, Faculty of Agriculture, Fayoum University, Fayoum 63514, Egypt.
Department of Biological Sciences, College of Science, University of Jeddah, Jeddah 21959, Saudi Arabia.
Plants (Basel). 2025 Feb 10;14(4):544. doi: 10.3390/plants14040544.
This study investigated the combined effects of zinc oxide nanoparticles (Nano-Zn) and moringa leaf extract (MLE) on squash plants grown under water stress conditions in saline soil during 2021-2022. The research compared full irrigation (100% ETc) with water deficit conditions (60% ETc). While water deficit negatively impacted plant growth, yield, and various physiological parameters, the sequential application of Nano-Zn (at 50 or 100 mg L) with MLE (3%) significantly mitigated these adverse effects. The combined treatment proved more effective than individual applications, enhancing growth parameters, photosynthetic efficiency, and antioxidant systems. The treatment particularly improved stress tolerance by increasing protective compounds like soluble sugars and amino acids while reducing harmful HO levels. The study concluded that sequential application of 100 mg L Nano-Zn with MLE was optimal for enhancing squash performance under drought stress, with 50 mg L Nano-Zn plus MLE as the second-best option.
本研究调查了2021 - 2022年期间,纳米氧化锌(Nano-Zn)和辣木叶提取物(MLE)对在盐渍土壤水分胁迫条件下生长的南瓜植株的联合作用。该研究将充分灌溉(100% ETc)与水分亏缺条件(60% ETc)进行了比较。虽然水分亏缺对植株生长、产量和各种生理参数产生了负面影响,但纳米氧化锌(50或100 mg/L)与辣木叶提取物(3%)的顺序施用显著减轻了这些不利影响。联合处理比单独施用更有效,提高了生长参数、光合效率和抗氧化系统。该处理通过增加可溶性糖和氨基酸等保护化合物,同时降低有害的HO水平,特别提高了胁迫耐受性。研究得出结论,在干旱胁迫下,100 mg/L纳米氧化锌与辣木叶提取物的顺序施用对提高南瓜性能最为理想,50 mg/L纳米氧化锌加辣木叶提取物为次优选择。