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以广泛分布在辽宁海岸线的翅碱蓬为研究对象,研究了不同浓度NaCl胁迫(0、100、200、300、400、500、600 mmol·L-1)对翅碱蓬中营养物质含量的影响,以期为盐碱地的改良利用、翅碱蓬的作物化栽培及经济价值的开发利用提供一定的参考依据。结果表明:随着NaCl浓度的升高翅碱蓬中可溶性糖、蛋白质和维生素C含量呈先增加后减少的趋势,并且可溶性糖和蛋白质各处理值均高于对照值。NaCl胁迫使翅碱蓬体内积累较多的可溶性糖和蛋白质来维持渗透平衡,并且通过渗透调节来抵御盐分对其的伤害,保证植株在盐分胁迫条件下从外界高盐溶液中吸收水分。NaCl浓度亦对翅碱蓬中Zn、Fe、Ca、Mg含量影响明显,随着NaCl浓度的提高,翅碱蓬中Zn、Fe、Mg含量表现出先升高后下降的变化趋势,Ca含量表现持续下降的变化趋势。其中,当NaCl浓度在0 mmol·L-1时,翅碱蓬Ca含量最高;当NaCl浓度在100 mmol·L-1时,翅碱蓬Zn、Fe含量最高;Mg则是300 mmol·L-1时含量最高。
The effects of NaCl stress (0, 100, 200, 300, 400, 500, 600 and 600 mmol·L-1) on the nutrient content of Suaeda philippinarum were studied in this paper. To improve the use of Sui Peng Sui cultivation and economic development and utilization of the value to provide some reference. The results showed that the contents of soluble sugar, protein and vitamin C tended to increase at first and then decreased with the increase of NaCl concentration, and the contents of soluble sugar and protein were higher than those of the control. Under NaCl stress, soluble sugar and protein accumulate more soluble sugar and protein in the body to maintain osmotic balance, and through the osmotic adjustment to resist the harm to the salt, to ensure that the plant absorbs moisture from the high salt solution under the salt stress conditions. The concentrations of NaCl also had significant effects on the contents of Zn, Fe, Ca and Mg in Suaeda salsa. The contents of Zn, Fe and Mg in Suaeda salsa increased first and then decreased with the increase of NaCl concentration, and the content of Ca decreased continuously . Among them, the content of Ca was the highest when the concentration of NaCl was 0 mmol·L-1, while the content of Zn and Fe was the highest when the concentration of NaCl was 100 mmol·L-1, while the content of Mg was the highest when the concentration was 300 mmol·L-1 .