Effect of humic acid and nano calcium chelate on some growth and biochemical characteristics of Gerbera jamesonii

In order to investigate the effect of humic acid and nano calcium chelate on growth and biochemical characteristics of Gerbera, an experiment as a completely randomized design with two factors with three replications in hydroponic conditions and in the pot was performed. The first factor was included: humic acid in 4 concentrations of 0 (control), 500, 1000 and 2000 mg /l as a drench and the second factor: nano calcium chelate at 4 concentrations of 0 (control), 1, 2 and 3 gr/l as a foliar application. Indices such as leaf number, area and length, total leaf chlorophyll and leaf carotenoid were measured. The results of the analysis showed that humic acid at a concentration of 2000 mg/l and a concentration of 3 g/l nano calcium chelate significantly increased the number of leaves, leaf length, and leaf area compared to the control. Also humic acid (500 mg/l) and nano calcium chelate (2 g/l) caused a significant increase in total chlorophyll content and carotenoid in comparison to control.

کلیدواژه ها:

Chlorophyll ، Gerbera ، Growth characteristics ، Nutrition