Abstract Miniature rose (Rosa chinensis) is an ornamental and commercial plant having many applications, especially in green space design. One of the major environmental factors limiting the cultivation of this plant is salinity. This study investigated the effect of silicon application on the morphological and physiological responses of miniature rose under the salinity stress conditions in 2018. A factorial experiment was conducted in a completely randomized design with three replications. Experimental factors were including the salinity (0, 3 and 6 m mos/m) and silicone fertilizer (0, 250, 500 and 1000 mg/L nano silicon, 250, 500 and 1000 mg/L potassium silicate). The results indicated that salinity stress leads to a significant reduction in the plant height, leaf area, vase life, fresh weight of the plant, number of flowers, stem diameter, peduncle, open flower diameter, flower life on plants and chlorophyll a and b concentrations. Under the salinity of 6 dS/m without applying silicon, the activity of glutathione reductase and superoxide dismutase enzymes was 2.44 and 2.25 fold with respect to the control, respectively. Upon applying the silicon treatment, the concentration decrement of potassium, phosphorous, iron and zinc was reduced in the shoots of rose. Application of potassium silicate and nano silicon at concentrations of 1000 mg/L had the greatest effect on the improvement of studied traits. Therefore, adding the silicate fertilizers to saline soils can reduce the negative effects of salinity stress on the miniature rose plant var. minima.

中文翻译：

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硅对盐胁迫下玫瑰（Rosa chinensis var. minima）植物部分形态和生理性状的影响

摘要 小月季（Rosa chinensis）是一种观赏性和商业性植物，用途广泛，尤其是在绿地设计中。限制这种植物种植的主要环境因素之一是盐度。本研究调查了 2018 年在盐度胁迫条件下，施硅对微型月季形态和生理反应的影响。析因试验采用完全随机设计，重复 3 次。实验因素包括盐度（0、3 和 6 m mos/m）和硅肥（0、250、500 和 1000 mg/L 纳米硅，250、500 和 1000 mg/L 硅酸钾）。结果表明，盐胁迫导致株高、叶面积、瓶插寿命、植株鲜重、花数、茎粗、花序梗、开花直径、植物上的花寿命和叶绿素 a 和 b 浓度。在不加硅的6 dS/m盐度下，谷胱甘肽还原酶和超氧化物歧化酶的活性分别是对照的2.44和2.25倍。应用硅处理后，玫瑰枝条中钾、磷、铁和锌的浓度降低减少。施用浓度为1000 mg/L的硅酸钾和纳米硅对研究性状的改善效果最大。因此，在盐渍土中添加硅酸盐肥料可以减少盐分胁迫对小型玫瑰植物变种的负面影响。最小值。在不加硅的6 dS/m盐度下，谷胱甘肽还原酶和超氧化物歧化酶的活性分别是对照的2.44和2.25倍。应用硅处理后，玫瑰枝条中钾、磷、铁和锌的浓度降低减少。施用浓度为1000 mg/L的硅酸钾和纳米硅对研究性状的改善效果最大。因此，在盐渍土中添加硅酸盐肥料可以减少盐分胁迫对小型玫瑰植物变种的负面影响。最小值。在不加硅的6 dS/m盐度下，谷胱甘肽还原酶和超氧化物歧化酶的活性分别是对照的2.44和2.25倍。应用硅处理后，玫瑰枝条中钾、磷、铁和锌的浓度降低减少。施用浓度为1000 mg/L的硅酸钾和纳米硅对研究性状的改善效果最大。因此，在盐渍土中添加硅酸盐肥料可以减少盐分胁迫对小型玫瑰植物变种的负面影响。最小值。玫瑰枝条中的磷、铁和锌减少。施用浓度为1000 mg/L的硅酸钾和纳米硅对研究性状的改善效果最大。因此，在盐渍土中添加硅酸盐肥料可以减少盐分胁迫对小型玫瑰植物变种的负面影响。最小值。玫瑰枝条中的磷、铁和锌减少。施用浓度为1000 mg/L的硅酸钾和纳米硅对研究性状的改善效果最大。因此，在盐渍土中添加硅酸盐肥料可以减少盐分胁迫对小型玫瑰植物变种的负面影响。最小值。