The objective of this study was to test the effect shading levels and leaf reduction intensities on survival growth Copaifera langsdorffii Guillem. ex Benth., Desf. Hymenaea courbaril L. seedlings rescued from natural regeneration. Three experiments were conducted in a completely randomized design with split-plots, which four composed plots (0 or full sun; 30; 50; 70%) three reductions subplots...

Celem przeprowadzonych badań była analiza plonowania i elementów struktury plonu czterech odmian pszenicy ozimej – trzech zwyczajnej (Triticum aestivum ssp. vulgare): ‘Laudis’, ‘Patinas’ ‘Danubius’ jednej odmiany twardej durum Desf.) ‘Lupidur’ oraz jarej dwóch ‘Nawra’ ‘Telimena’ Desf.): ‘Haristide’ ‘Floradur’ uprawianych w systemie rolnictwa konwencjonalnego. Doświadczenie polowe przeprowadzono...

pandemic influenza Necla Akçakaya, Ömer Kılıç, Yildiz Camcıoğlu, Haluk Çokuğraş, Kenan Midilli Department of Pediatrics, Division of Infectious Diseases, Clinical Immunology and Allergy, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey. Department of Microbiology and Clinical Microbiology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey. Correspondence: Ömer K...

Species distribution models are scarcely applicable to invasive species because of their breaking of the models' assumptions. So far, few mechanistic, semi-mechanistic or statistical solutions like dispersal constraints or propagule limitation have been applied. We evaluated a novel quasi-semi-mechanistic approach for regional scale models, using historical proximity variables (HPV) representin...

The essential oil of Heracleum sphondylium L subsp. ternatun (Velen.) Brummit (Umbelliferae) was isolated from crushed seeds by means of hydrodistillation and analyzed by GC and GC/MS. Major components were identified as 1-octanol (50.3%), octyl butyrate (24.6%), and octyl acetate (7.3%). Furthermore, antimicrobial activity of the oil was evaluated using microdilution broth and agar diffusion m...

The concentrations of sugars, starch, nutrients and some heavy metals were examined during the growing season in four tree species (Ailanthus glandulosa DESF., Carpinus betulus L., Tilia argentea DESF. and Quercus cerris L.), growing in natural and planted stands in a region with considerable industrial emissions and in an unpolluted area. Trees in the polluted regions had lower concentrations ...

The new branched spike forms of wheat were synthesized from the crosses between a complex wheat line 171ACS {Aegilotriticale [(T. durum Desf. × Ae. tauschii Coss.) × Secale cereale L. ssp. segetale Zhuk.] × T. aestivum L. ‘Chinese Spring’} (2n = 6x = 42, AABBDD) and durum wheat variety T. durum Desf. ‘Bereketli-95’ (2n = 4x = 28, AABB) and also between a dwarf line 237KACS (Aegilotriticale × T....