1. A highly purified sporopollenin fraction from Corylus avellana pollen was obtained using a gentle method employing hydrolyzing enzymes (pronase, lipase, cellulase, amylase, cellulysin) and an exhaustive extraction using different solvents. 2. The sporopollenin fractions were degraded by potash-fusion and nitrobenzene oxidation and the low molecular decomposition products were analyzed by TLC...

This is not a clear effect of boron fertilizers on fruit yield and hazelnut quality. However, soil deficiency common nutrient problem for growth. In this study, the fertilizations foliar was investigated quality hazelnuts (Corylus avellana L.) in two provinces Turkey between 2013 2014. The experimental trials were carried out application (0.0, 3.0 6.0 g per Ocak) spraying (0 300 mg B L-1). Resu...

In a multiple-choice test, the preference of egg-laying Polygonia c-album (comma butterfly) females was studied for oviposition on plants bearing surrogate leaves treated with crude methanol extracts obtained from leaves of seven host-plant species: Humulus lupulus, Urtica dioica, Ulmus glabra, Salix caprea, Ribes nigrum, Corylus avellana, and Betula pubescens. The ranking order of surrogate le...

Hazelnut (Corylus avellana L.) is a popular tree nut worldwide, mainly distributed along the coasts of the Black Sea region of Turkey, southern Europe (Italy, Spain, Portugal, and France), and in some areas of the US (Oregon and Washington). Turkey is the world’s largest producer of hazelnuts, contributing ~74% to the total global production. In this study, compositional characteristics of eigh...