NaCl priming of seeds can improve seed germination and seedling growth and increase the tolerance to salinity, but most research on salt tolerance in priming plants is restricted to the germination and seedling stages. The aim of this study was to evaluate the effect of soil water salinity and seed salt priming on the physiological responses of adult Solanum lycopersicum Mill. ‘Río Grande’ plants. A group of seeds was germinated in freshwater (control), and another group was germinated in an 85 mM NaCl solution (salt priming). Plants from both groups were grown during a period of 8 weeks in hydroponic culture. Subsequently, control and priming plants were divided into two subgroups. One subgroup was kept in freshwater, while 85 mM NaCl was added to the nutrient solution of the second subgroup. Tissue water relations, gas exchange, fluorescence and growth parameters were obtained at 0–15 days after the beginning of the experiment. The addition of NaCl to adult plants led to a reduction of leaf solute potential, photosynthetic maximum carboxylation and transpiration rates, and stomatal conductance but neither the chlorophyll content nor any of the parameters associated with the growth of the plant were negatively affected. Salt seed priming induces physiological changes such as improved osmotic adjustment, maximum quantum yield of photosystem II and, partially, the water use efficiency, characteristics that are considered to improve tolerance to salt stress.

中文翻译：

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盐度和种子盐引发对Solanum lycopersicum cv. 成株生理机能的影响。'里奥格兰德'

种子的NaCl引发可以促进种子萌发和幼苗生长，提高耐盐性，但引发植物耐盐性的研究大多局限于萌发和幼苗阶段。本研究的目的是评估土壤水分和种子盐引发对成年茄子生理反应的影响。“里奥格兰德”植物。一组种子在淡水中发芽（对照），另一组种子在 85 mM NaCl 溶液中发芽（盐引发）。来自两组的植物都在水培培养中生长了 8 周。随后，对照和引发植物被分成两个亚组。一个亚组保持在淡水中，而在第二个亚组的营养液中加入 85 mM NaCl。组织水分关系，气体交换，在实验开始后 0-15 天获得荧光和生长参数。向成年植物添加 NaCl 会导致叶片溶质电位、光合最大羧化和蒸腾速率以及气孔导度降低，但叶绿素含量和与植物生长相关的任何参数均未受到负面影响。盐种子引发诱导生理变化，例如渗透调节的改善、光系统 II 的最大量子产率，以及部分水分利用效率，这些特性被认为可以提高对盐胁迫的耐受性。光合最大羧化和蒸腾速率，以及气孔导度，但叶绿素含量和任何与植物生长相关的参数都没有受到负面影响。盐种子引发诱导生理变化，例如改善渗透调节、光系统 II 的最大量子产率，以及部分水分利用效率，这些特性被认为可以提高对盐胁迫的耐受性。光合最大羧化和蒸腾速率，以及气孔导度，但叶绿素含量和任何与植物生长相关的参数都没有受到负面影响。盐种子引发诱导生理变化，例如渗透调节的改善、光系统 II 的最大量子产率，以及部分水分利用效率，这些特性被认为可以提高对盐胁迫的耐受性。