Young poplar cuttings (Populus nigra L. cv. Loenen and P. maximowiczii Henry x P. nigra L. cv. Rochester) were exposed for six weeks in open-top chambers to realistic concentrations o f pollutant mixtures: 1) control; 2) SO ,/N O x; 3) 0 3/N 0 x and 4) S 0 2/ 0 3/N 0 x. In this sequence o f fumigation variants, the degree o f influence o f the various parameters o f the nitrogen me­ tabolism an...

In order to study the effect of light competition and microclimatic modifications on the net assimilation (NA), growth and yield of soybean (Glycine max L.) as an understory crop, three 26-year-old soybean-tree (Acer saccharinum Marsh., Populus deltoides X nigra, Juglans nigra L.) intercropping systems were examined. Tree competition reduced photosynthetically active radiation (PAR) incident on...

Background and Purpose: Conservation efforts across Europe and a substantial lack of information regarding the present status of black poplar (Populus nigra L.) in Slovenia led us to conduct this research. The objectives were to determine the presence of preserved native black poplar in Slovenia, to evaluate the variation within and between two selected populations, and to evaluate the conditio...

Abstract The paper investigated the phytochemical content and antioxidant activity of poplar buds ( Populus nigra L .), turmeric Curcuma longa ) ginger Zingiber officinale extracts. Proximate composition, total polyphenols, ß-carotene, vitamin E, minerals capacity were tested for all selected plants. proximate analysis plants showed that had a higher crude protein, fat fiber than ginger. extrac...

During the study on rust mycobiota of Central Alborz, several rust infected specimens belonging to Salicaceae family including Populus and Salix species were investigated. Populus nigra, P. euphratica, Saix alba and S. excelsa were infected by various Melampsora species. Uredinial (II) and telial (III) stages of rust were present on infected plants. According to morphological characters, five f...