The size of vegetation area as a factor of yield of calamus (Acorus calamus L.) root and above ground part

Abstract

The experiment was designed according to the randomized block system in four replications at Starčevo and Gorobilje sites (Serbia). The basic plot area was 5 m2 while four variants, 50x20 cm, 50x30 cm, 70x20 cm and 70x30 cm, of vegetation area were involved. Watering was done every 10 days (20 mm of water) during the whole vegetation period and harvest of above ground part in September. Prior to yield estimation, collected biomass was dried in thermal dryer at 45ºC. Rhizomes were dig out in the middle of October. According to the analysis of variance, highly significant differences in yield of calamus root and above ground part as related to the vegetation area size were found. The highest root yield (1646 kg ha-1) was recorded in variant 50x30 cm and the highest yield of above ground part (1872 kg ha-1) in variant 70x30 cm.

Ogledi su zasnovani u Starčevu i Gorobilju po slučajnom blok sistemu u četiri ponavljanja. Površina osnovne parcele bila je 5 m2. Ispitivane su četiri veličine vegetacionog prostora: 50x20 cm, 50x30 cm, 70x20 cm i 70x30 cm. U toku vegetacije vršeno je zalivanje na svakih 10 dana sa zalivnom normom od 20 mm vode. Kosidba nadzemnog dela obavljena je u septembru. Pokošena biomasa osušena je u termičkoj sušari na temperaturi od 45ºC, a zatim je izmeren prinos. Rizomi su izvađeni polovinom oktobra. Na osnovu analize varijanse utvrđeno je da postoje veoma značajne razlike u prinosu korena i nadzemnog dela iđirota u zavisnosti od veličine vegetacionog prostora. Najveći prinos korena iđirota (1646 kg ha-1) ostvaren je u varijanti sadnje 50x30 cm, a najveći prinos nadzemnog dela iđirota (1872 kg ha-1) u varijanti sadnje 70x30 cm.