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Determination of Age of Mistletoe (Viscum album ssp. austriacum (Wiesb.) Vollman) on Scots Pine (Pinus sylvestris L.)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Bilgili, Ertuğrul Serdar, Bedri Eroğlu, Mahmut Coşkuner, Kadir Alperen Baysal, İsmail |
| Copyright Year | 2013 |
| Abstract | Mistletoe ( Viscum album L .) is a small, semi-parasitic evergreen shrub growing on many plants including Scots pine. Instead of producing roots in the ground, mistletoe sends out root-like structures into host tree branches called houstorium, from which it extracts water and mineral nutrients and results in deterioration of crown structure, a decrease in height and diameter growth and a reduction in needle length and number. Infected trees may become sufficiently stressed as to attract bark beetles or other secondary pests. Death of the host tree occurs slowly in most cases depending on the severity of infection and on the vigor and size of the tree. Age determination in organisms is important for determining species biology. A thorough understanding of pests biology is of crucial importance in controlling the damage incurred by the pest. However, except in conifers, determination of age for long lived plants can be generally problematic. Little information exist on the dedtermination of age in pine mistletoe. In this study, the age of mistletoe was determined both morphologically and anatomically. The study area was selected in mistletoe (Viscum album L.) infected Scots pine forests within the boundaries of Torul State Forest Enterprise. In order to show variation of age differences, branches infected by mistletoes were cut from trees and taken to the laboratory. The first technique used to determine the age of mistletoe is morphological method. In this method, total number of nodes on the longest stem of mistletoe is counted to determine the age. In anatomic method, the houstoriums (sinkers) of mistletoe which are longitudinally oriented in the host bark, is evaluated in laboratory conditions. Transverse sections are obtained at the junction between the branch and mistletoe stem from the mistletoe samples in laboratory using microtome at 15-20 µm intervals. The transverse sections were observed with Olympus BX50 digital photo microscope. All pictures taken were evaluated on a computer for determining the age of mistletoe anatomically. The results of the two methods were compared. The results of this study can be invaluable in determining the effect of mistletoe on diameter and height growth of infected trees, and in controlling mistletoe. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ekonferans.artvin.edu.tr/index.php/ICFS/ICFS/paper/viewFile/152/110 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
