Variability of major traits of marigold seed in respect of genotype and climatic conditions

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. The highest absolute mass was registered in domestic cultivar "Domestic orange". Climatic conditions had great influence on yield and quality of marigold seed. In the first study year, with 2.5 times higher water sediment during the vegetation period, seed yield in all genotypes was higher compared to the second study year. Also, absolute mass of seed of all genotypes was higher in the first study year. However, germination energy and total germination for all genotypes was better in the second year, when the sum of temperatures during the vegetation period was 37580C compared to the first year when the sum of temperatures recorded was 35230C. Analizirani su rezultati dvogodisnjeg uporedog istrazivanja kvalitativnih i kvantitativnih osobina semena vise genotipova nevena u odnosu na standardnu sortu. Najveci prinos semena u obe eksperimentalne godine zabelezen je kod genotipa ?King orange? a najmanji kod genotipa ?R?. U pogledu kvaliteta semena, odnosno energije klijanja i ukupnog klijanja, najbolje rezultate dao je genotip ?King orange? a najslabije genotip ?R? u obe godine istrazivanja. Najvecu apsolutnu masu imalo je seme standardne sorte ?Domaci oranz?. Klimatski uslovi imali su velikog uticaja na prinos i kvalitet semena nevena. Tako je u prvoj godini istrazivanja, kada je u vegetacionom periodu bilo 2,5 puta vise vodenog taloga, prinos semena svih genotipova bio veci u odnosu na drugu godinu. Takodje, i apsolutna masa semena svih genotipova bila je veca u prvoj godini istrazivanja. Medjutim, energija klijanja i ukupno klijanje bili su kod svih genotipova bolji u drugoj godini istrazivanja kada je suma temperatura u vegetacionom periodu bila 37580C, u odnosu na prvu godinu istrazivanja kada je ista suma iznosila 35230C.