Study on morphological, yield, and phytochemical characteristics of Solidago virgaurea L.
The morphological, yield, and phytochemical characteristics of Solidago virgaurea L. were studied at the full flowering stage in two habitats of Pol Sefid and Sang Deh in Mazandaran province in 2019. The traits including plant height, plant diameter, inflorescence length, number of stems, length and leaf width, length and ray floret width, tubular floret length, flower diameter, receptacle diameter, stem diameter, fresh and plant dry weight, fresh and leaf dry weight, fresh and stem dry weight, fresh and leaf+flower dry weight, and total phenols (by Folin-Ciocalteu method), flavonoids (by aluminum chloride method), and leiocarposide (by HPLC) contents were measured. The results showed that the highest amounts of inflorescence length (40 cm), flower diameter (21.1 mm), plant dry weight (9.44 g plant-1), flower dry weight (6.06 g plant-1), flower+leaf dry weight (7.22 g plant-1), and stem dry weight (2.22 g plant-1) were obtained in the population "Pol Sefid". A positive and significant correlation was observed between the plant dry weight and traits including the plant height, number of stems, stem diameter, flower diameter, plant fresh weight, fresh and leaf dry weight, fresh and stem dry weight, fresh and leaf+flower dry weight, and total flavonoids. The content of total phenols (26.95 mg Gallic acid/g DW), total flavonoids (8.82 mg Rutin/g DW), and leiocarposide (2.08 mg/g DW) was higher in the population "Sang Deh" than "Pol Sefid".
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