Site effect on some important flavonoid compounds of Linden tree (Tilia platifolia L.)

Linden tree is one of the plant species growing along the border of Caspian Sea and south of Alborz Mountain. The flowers, fruits, leaves and the bark of the plant contain some valuable polyphenols compounds including chersiterin, Christine, rutin and campherol that widely are used in pharmaceutical industries. It was the aim of present experiment to investigate the effect of growing regions on the quality and quantity of polyphenols of different parts of linden tree. Flowers, fruits, leaves, and barks of the experimental plants were collected based on randomized block design with three replications, both in Gorgan and Kelardasht forests. Parameters like fresh weight, dry weight, total extract of samples, and the content of rutin and chersiterin were measured in this experiment. Results showed that growing region significantly influenced on the amount of measured polyphenolic compounds. Generally the accumulation of polyphenolic compounds of linden trees influenced by environmental conditions, in which the highest content of rutin (0.53%) and chersiterin (2.18%) were recorded in Kelardasht.