Претраживање
Приказ резултата 1-8 од 8
A new Aphidius species (Hymenoptera : Braconidae : Aphidiinae) from high-montane areas of southeastern Europe
(Springer, Dordrecht, 2004)
Aphidius montenegrinus sp.n. from Serbia and Montenegro is described and illustrated. It parasitized Acyrthosiphon daphnidis Ilharco, on Daphne alpina L. The parasitoid was described and illustrated using scanning electron ...
Chemical composition and antimicrobial activity of Ambrosia artemisiifolia L. essential oil
(Taylor & Francis Inc, Philadelphia, 2004)
Chemical analysis and antimicrobial activity of essential oil isolated by steam distillation from Ambrosia artemisiifolia L., Asteraceae dried flowering herb were performed. Principal constituents were germacrene D (24.1%), ...
Investigation of kernel oils of Quercus robur and Quercus cerris
(Springer, New York, 2004)
The kemel oils of Quercus robur and Quercus cerris were obtained by Soxhlet extraction using petroleum ether. Oil yields were found to be 5.2-5.6% and 4.3-4.8% for Q. robur and Q. cerris kemel, respectively (expressed in ...
Characterization and PCR-based typing of Xanthomonas campestris pv. vesicatoria from peppers and tomatoes in Serbia
(Springer, Dordrecht, 2004)
During the last two decades bacterial strains associated with necrotic leaf spots of pepper and tomato fruit spots were collected in Serbia. Twenty-eight strains isolated from pepper and six from tomato were characterized. ...
Effect of N deficiency on leaf growth and cell wall peroxidase activity in contrasting maize genotypes
(Springer, Dordrecht, 2004)
Two maize genotypes differing in leaf elongation rate (high-LER and low-LER) were used for the investigation of the effects of nitrogen deficiency on leaf growth and development and activity of enzyme cell wall peroxidase ...
An analytical approach to the uniqueness problem of hot-wire probes to measure simultaneously three velocity components
(IOP Publishing Ltd, Bristol, 2004)
The uniqueness range of hot-wire probes to simultaneously measure all three velocity components is analysed analytically. Expressions defining the uniqueness cone half-angle are presented for triple as well as for quadruple ...
Nectar production in three melliferous species of Lamiaceae in natural and experimental conditions
(Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd, 2004)
The nectar production of Lamium maculatum, Lamiastrum galeobdolon and Ajuga reptans was evaluated by determining the Index of nectar production (INP), total nectar quantity per flower during 24h, nectar sugar concentration, ...
Identification of phytoplasmas associated with grapevine yellows in serbia
(Wiley, Hoboken, 2004)
The molecular identification and characterization of phytoplasmas from infected grapevines in four locations in Serbia are reported. Phytoplasmas were detected and identified by restriction fragment length polymorphism ...