Evaluation of Aloe vera (Aloe barbadensis Miller) antioxidant activity and some of morphological characteristics in different of vermicompost and nano-potassiom particles amounts

Construction and function of active substances of medicinal plants is influenced by environmental factors such as deficiency or increasing of nutrients in the soil and substrates type. Thus، an experiment was carried out in factorial experiment in the base of randomized complete with 16 treatments and 3 replications. The aim of this research was Influence of vermicompost and nano potassium fertilizer on morphological and phytochemical characteristics in Aloe vera. The treatments were four levels of vermicompost (0،15، 30 and 45)، in the Volume percents with soil of culture and Nano potassium in 3 levels 2، 4، 6 gr/l and 0 as control. The results showed that the maximum amount of gel weight، gel moisture content، gel glucomannan and anthocyanin of cortex was obtained in 30% of vermicompost and 4 g/l of nano potassium. The interaction of these two factors was increased the gel antioxidant capacity and moisture content and showed maximum amount in 30% vermicompost and 2g/l nano potassium. The maximum of weight leaf was belonged in 30% of vermicompost and 6g/l nano potassium and maximum amount of gel flavonoid showed in 15 % of vermicompost and 4g/l nano potassium. Thus، using of combination substrateand of vermicompost ana foliar application of nano potassium fertilizer in aloe vera cultivation. has an effective role in the production leaves and gel high quality and the way influence it depending on characteristics is function of combination vermicompost substrate and nano-potassium fertilizer concentration.