Results of a two-year investigation (2005 and 2006) for the yield and quality of fenugreek seed (Trigonella foenum graecum L.) obtained on the location in South Banat (around Pančevo) on marsh dark soil are presented in the paper. Fenugreek seed used in this investigation was produced in the collection of the Institute of Medicinal Plant Research "Dr Josif Pančić" in Pančevo. The effect of sowing date on yield (kg/ha) and quality of fenugreek seed (germination energy and total germination) were investigated.

Results of the laboratory study of the quality of gentian seed are analyzed in this paper. Seed originated from wild and grown plants from Zlatibor Mountain (approx. 1000 m above sea level) collected in the third decade of August 2006 and from wild and grown gentian plants around Ivanjica (approx. 1030 m above sea level) collected also in the third decade of August 2006, as well as from grown plants in the Tara Mountain (approx. 1000 m above sea level) collected during the same period.

Results of a two-year investigation (2005 and 2006) for the yield and quality of fenugreek seed (Trigonella foenum graecum L.) obtained on the location in South Banat (around Pančevo) on marsh dark soil are presented in the paper. Fenugreek seed used in this investigation was produced in the collection of the Institute of Medicinal Plant Research "Dr Josif Pančić" in Pančevo. The effect of sowing date on yield (kg/ha) and quality of fenugreek seed (germination energy and total germination) were investigated. Sowing was carried out on seven dates, 10 days between dates of each sowing.

Results of the laboratory study of the quality of gentian seed are analyzed in this paper. Seed originated from wild and grown plants from Zlatibor Mountain (approx. 1000 m above sea level) collected in the third decade of August 2006 and from wild and grown gentian plants around Ivanjica (approx. 1030 m above sea level) collected also in the third decade of August 2006, as well as from grown plants in the Tara Mountain (approx. 1000 m above sea level) collected during the same period.

The results of two-year research on the effect of application of certain types of fertilizers on yield and quality of anise seed are analyzed in this paper. Application of fertilizer has significantly influenced the yield, so in both study years (2004, 2005) the highest yield was achieved in fertilization variant with Baktofil 80 l/ha.

Beside its multiple use in oil producing and feed industry, flax seed is used also in pharmaceutical industry as additional medicinal component, whether as mono component or in tea mixtures. Results of a two-year cultivation of several flax genotypes are analyzed. The highest yield of seed in both study years was achieved in genotype "Z" and the lowest in standard cultivar "Mira". In regard to germination energy and total germination, the best value was determined for genotype "B" and the lowest for standard cultivar "Mira".

Tests were carried out on the influence of low temperatures during winter dormancy on per cent of central and lateral buds freezing in Merlot Standard and its varieties. The method applied was in vitro artificial freezing of cuttings of one-year-old shoots in cold storage. Three low temperatures were applied: -15°C, -20°C and -25°C. Tests were performed simultaneously in all varieties three times during winter on December 25, January 25 and February 25 in 1998, 1999 and 2000.

The results of the chemical investigations of variously treated acorn samples are presented in this paper with the aim of obtaining data on the amount of nutritious components and biologically active substances. The Quercus robur acorn, which belongs to the Fagaceae family, was investigated in a raw, thermally treated form and as an extract that was subsequently dried in a dryer with a fluidized bed.

The results of investigation of the tannin content in the oak acorn kernel Quercus cerris, qualitative analysis of tannin and antioxidation effect of ethanol extracts of acorn on porcine lipid (prime steam lard) as a substrate are presented in this paper. Experiments were carried out on kernel samples of the domestic oak acorn, from the location Zaglavak, near by the town of Bajina Bašta. Tannin content was determined by spectrophotometric procedure using phosphorus Wolframic acid on wave length of 715 nm.

The results of the two-year comparative research of qualitative and quantitative traits of marigold seed of different genotypes in regard to the standard cultivar were analyzed. The highest yield of seed in both study years was registered in genotype "King orange", and the lowest in genotype "R". Concerning the quality of seed, that is, germination energy and total germination, the best results were established for genotype "King orange" and the poorest for genotype "R" in both study years.