TY - JOUR T1 - Effect of Humic Acid on Seed Germination and Seedling Growth of Borago officinalis and Cichorium intybus TT - JF - mdrsjrns JO - mdrsjrns VL - 4 IS - 1 UR - http://ecopersia.modares.ac.ir/article-24-8389-en.html Y1 - 2016 SP - 1239 EP - 1249 KW - Allometric coefficient KW - Medical plants KW - Seed management N2 - The study was conducted to investigate the effect of humic acid on the germination properties of medicinal plants Borago officinalis and Cichorium intybus in a completely randomized design with five replications. Experimental treatment comprised the following dosages 0, 15, and 30 g l-1. The results revealed that effect of humic acid on the germination properties of C. intybus was significant (p<0.01) except for the germination percentage and mean germination time (p< 0.01). In addition, humic acid was effective on the morphological properties of C. intybus except for radical and pedicel dry weight. Humic acid was also effective on the germination properties of B. officinalis except for the germination percentage (p<1%); it was only effective on morphological properties viz. radical fresh weight, seedlings’ pedical length and allometric coefficient. The most effect was obtained in the 30 g l-1 humic acid.The control treatment had the least effect on the plant's properties. In conclusion, the results showed that application of 30 g l-1 humic acid was effective in germination of the plant species and stimulated the plants germination. M3 ER -