Effects of Laser Radiation on the Growth Indicators of Kelussia Odoratissima Mozaff. Medical Plant

Abstract

Around the world, a vast variety of plants abounds, but it is still difficult for scientists to conduct rigorous research in this field due to the regional nature of these plants. Iran is the source of one of such plants: Kelussia odoratissima, which has recently entered the pharmacopeia. Kelussia odoratissima is an extremely useful medicinal plant that is, unfortunately, an endangered species in Iran. This study aims at measuring the growth indices under experimental conditions with cocopeat and vermicompost media with nutritious fertilizers NPK (100:20:150) ppm and laser. The seeds were separated into four distinct groups: first, cooling with the seeds; second, submerged in 1500 ppm hormones gibberellin; third, exposure to a laser with a wavelength of 650 nm for 15 min; fourth, both 1500 ppm gibberellin and laser. Each condition was inspected on four different levels of rich cocopeat with vermicompost 10%, 20%, or 30%. In each group of treatment, the medium cocopeat without vermicompost and nutrition was considered as the control treatment, with the hope of both saving and cultivating this precious plant. The experiment took roughly seven months, with the plantlet not only kept alive and stable but with superior characteristics compared to natural media and growth conditions. The results show that the best growth conditions are as follows; a laser with gibberellin hormone plus 30 percent vermicompost and NPK (100:20:150) ppm fertilizer. This improves growth indices such as the wet weight of both plantlet and root, the dry weight of both plantlet and root, and the length of both plantlet and root.