One-year-old date palm seedlings ( L.) were studied to assess the impact of salinity on root system architecture and biochemical parameters. Saline water was used for irrigation, and a year-long analysis was conducted. Continuous monitoring in rhizotrons revealed increased root growth, lateral root production, and enhanced protein, chlorophyll, and carotenoid production at 100 mM NaCl. However, soluble sugar content decreased. At 200 mM NaCl, root length, lateral roots, and various biochemical parameters decreased significantly, except for proline, which accumulated, suggesting osmoregulation. These findings highlight that moderate salinity stimulates growth and biochemical functions, while higher salinity levels adversely affect these parameters, with proline serving as a crucial osmoregulatory component in date palm seedlings under salt stress.

中文翻译：

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中等盐度刺激海枣幼苗（Phoenix dactylifera L.）的根系可塑性和生长参数

研究了一岁海枣幼苗 (L.)，以评估盐度对根系结构和生化参数的影响。使用盐水进行灌溉，并进行了长达一年的分析。对根管区的连续监测显示，100 mM 氯化钠条件下，根系生长、侧根产量增加，蛋白质、叶绿素和类胡萝卜素产量增加。但可溶性糖含量下降。在 200 mM NaCl 下，根长、侧根和各种生化参数显着下降，但脯氨酸除外，其积累，表明渗透调节。这些发现强调，中等盐度会刺激生长和生化功能，而较高的盐度水平会对这些参数产生不利影响，其中脯氨酸是盐胁迫下海枣幼苗的重要渗透调节成分。