The effect of salinity on the germination of two species Shores Black Passion (Suaeda fruticosa) and salt grass (Salsola imbricata)

Halophytes are potentially economic plants that in addition to helping to restoration and renewal of the environment, are also used as a store of medicinal resources. Siah shur (Suaeda fruticosa), is a perennial herb, a shrub, with a height of 160 cm and canopy diameter of 3 meters. Leaf extract of this plant has antibacterial, antioxidant and anticancer activity. Salsola imbricata is a vegetable plant with a height of 120 cm and is called Passion Fars. In traditional medicine, it is used in the treatment of dyspepsia, diarrhea, bloody diarrhea, anti-inflammation, colds, and shortness of breath (asthma), and sinus deficiency. High concentration of salt in the soil always affects the germination of plants, even halophyte plants. Therefore, a completely randomized design with three replications was used to study germination characteristics including germination percentage, germination rate, seed germination, stems length, root length, stem dry weight, root dry weight and a limiter coefficient of Salsola imbricata and Suaeda fruticosa were affected by salinity levels (control, 3, 10, 20, 30, 40, 50, 60 dss/m), under lab conditions and two culture bed with two different depths. The results showed that salinity significantly reduced the germination percentage, seed vigor, shoot length and roots in Salsola imbricata. The effect of salinity on germination percentage, seed vigor, stem length and the root of Suaeda fruticosa compared to Salsola imbricata to the salinity of 30 ds/m decreased with a slower process and at the next levels, significantly. The culture bed increases the germination percentage of both species with more organic matter and lower culture depth. Therefore, due to the tolerance of these two species to salinity levels at the germination stage, it is recommended to use these plants to improve the conditions of the desert and pasture rangelands.

کلیدواژه ها:

Salinity stress ، Suaeda fruticosa ، Salsola imbricata ، Germination