مشخصات پژوهش

Aloe vera is an important medicinal plant with high economic value in the world, which is widely used in various industries such as pharmaceutical, cosmetic and food. In order to investigate the effect of simultaneous application of biochar and arbuscular mycorrhizal fungus on growth, yield and aloin latex of A. vera at two harvest a factorial experiment with six replications was conducted. Experimental factors included three levels of biochar (without biochar (control), 250 and 500 g per pot) and two levels of arbuscular mycorrhiza (non inoculation and inoculation). According to the results at both harvest times, mycorrhiza inoculation had the greatest additive effect on the different characteristics compared to other treatments. Then, application of 250 g of biochar along with inoculation with mycorrhiza improved the growth and yield of A.vera. Inoculation with mycorrhiza and its additive effect on morphological traits such as number of leaves 15.00 and 17.75 per plan, leaf length 59.62 and 65.00 cm, leaf width 7.29 and 8.14 cm, leaf thickness 3.70 and 3.95 cm, plant height 35.75 and 74.00 cm in the first and second harvest, respectively, as well as plant yield such as number of pups 13.75 and 25.00 per plant , leaf weight 239.67 and 330.43 g, root fresh weight of 275.74 and gel to peel ratio 3.15 and 3.71 were obtained in the first and second harvest, respectively. The highest amount of aloin latex at two harvest times were 3.50 and 8.66 g with inoculation. In A. vera, leaf yield and gel production as well as increasing aloin synthesis are important considering the preservation and improvement of soil properties; Therefore, according to the results, inoculation with mycorrhiza can be effective to achieve the highest yield and growth of the A. vera. Also, the application of high amounts of biochar for the A. vera is not recommended.