THE EFFECTS OF LOCATION AND THE APPLICATION OF DIFFERENT MINERAL FERTILIZERS ON SEED YIELD AND QUALITY OF POT MARIGOLD (Calendula officinalis L.)

Abstract

The four-replicate trial with a local variety Domaći oranž (Local orange) was set up according to the randomised complete-block design in four locations (Gorobilje, Arilje, Pančevo and Kačarevo) and two variants of fertilizing (200 kg ha-1 KAN with 27 % of nitrogen and 400 kg ha-1 NPK 15:15:15) and the control without fertilizing. According to the three-factorial analysis of variance for all observed traits it was determined that there were very significant differences within growing locations and fertilizing variants and their interaction (L x F). The highest seed yield (672.84 kg ha-1) was detected in the variant with 400 kg NPK ha-1. The significantly lower seed yield (579.84 kg ha-1) was obtained in the variant with KAN at the rate of 200 kg ha-1 and the control variant (344.88 kg ha-1). The highest total seed germination of 91.84% and the 1000-seed weight (6.83 g) were obtained in the variant with 400 kg NPK ha-1. Total seed germination (85.87) and the 1000-seed weight (5.82 g) obtained in the control were significantly higher than total seed germination (83.31%) and the 1000-seed weight (5.42 g)  obtained in the variant with 200 kg ha-1  KAN.