(DOWNLOAD) "Seasonal Variation of Leaf Extracts of Mistletoe (Phoradendron Tomentosum)." by The Texas Journal of Science # eBook PDF Kindle ePub Free

March 19, 2021

eBook details

Title: Seasonal Variation of Leaf Extracts of Mistletoe (Phoradendron Tomentosum).
Author : The Texas Journal of Science
Release Date : January 01, 1999
Genre: Engineering,Books,Professional & Technical,
Pages : * pages
Size : 170 KB

Description

Abstract. -- Statistical analysis of gas chromatographic data using Microsoft Excel has been applied to the seasonal variation of leaf extracts of mistletoe (Phoradendron tomentosum) growing in Kerrville, Texas. Mistletoe samples were collected from the same plant during the months of September 1995 through May 1996. Hexane extracts were analyzed by gas chromatography. When the normalized chromatographic data were subjected to similarity index calculations, definite seasonal variation was observed with the most matches occurring in adjacent months and the most mismatches occurring in distant months. This method appears to have value in determining the chromatographic peaks that might be avoided when seasonal variation is a concern. Compounds that are independent of parasitic host, season, gender and method of collection must be carefully selected for use in biological analyses. **********