جستجوی مقالات مرتبط با کلیدواژه "پیت ماس" در نشریات گروه "پزشکی"

The composition of the planting beds and its microorganisms has a very important role on the establishment, growth and phytochemical performance of medicinal plants. The aim of this study was to determine the effect of different planting beds and inoculation of mycorrhizal fungus on the changes of stevioside, rebaudioside, and morpho-physiological traits of stevia. This study was conducted in a factorial experiment based on randomized complete blocks design (RCBD) with 10 treatments and 4 replications. The first factor consisted of inoculum and non-inoculum treatment of Glomus intraradices, and the second factor was the different combination of peat moss, coco peat, perlite and soil as planting beds. Mycorrhizal fungi inoculation significantly increased the plant height, number of lateral branches, stem and root diameter, number of leaves, leaf fresh/dry weight, shoot dry weight, root dry weight, and content of stevioside, rebaudioside A and C. Also, different combination of planting beds had a significant effect on the plant height, stem dry/fresh weight, leaf fresh weight, root dry/fresh weight, and content of stevioside, rebaudioside A and C. The results of this study showed that the combination of peat moss + coco peat + soil (2:1:1) with mycorrhizal fungi inoculation among the treatments had the highest positive effect on leaf dry weight and glycoside carbohydrates in stevia plants.

Since the essential oil of lavender (Lavandula officinalis L.) was used for the treatment of diseases related to the nervous system and rheumatism, phytochemical evaluation of this plant is essential especially in terms of cultivation and production.
This study was conducted to investigate the effect of different culture media on the amount of essential components, chlorophyll content, nutrients, growth characteristics, and rooting of lavender.
The experiment was done the basis of randomized complete blocks design (RCBD) in 10 treatments and 3 replications. Substrates and culture media for plant production in this study were M1; sand, M2; sand:perlite (2:1), M3; sand:peat-moss (2:1), M4; sand:vermicompost (2:1), M5; sand:perlite:peat-moss (2:1:1), M6; sand:perlite:vermicompost (2:1:1), M7; sand:peat-moss:vermicompost (2:1:1), M8; sand:vermicompost:peat-moss:perlite (2:1:1:2), M9; sand:vermicompost:peat-moss:perlite (4:1:1:2), and M10; sand:vermicompost:peat-moss:perlite (6:1:1:2).
Results showed that culture media had significant effect on the all characteristics of rooting, chlorophyll and nutrient content and essential oil components in lavender plants. Limonene, borneol, and camphor were the highest amount of essential oil compounds in lavender, respectively. The highest content of limonene and oxygenated monoterpenes in M1, rooting percentage and number of main root in M3, camphor and chlorophyll content and root dry weight in M5, borneol content in M8, and hydrocarbon monoterpenes in M10 were observed.
The application of different culture media in the production and propagation of lavender in addition to changes in morpho-physiological characteristics of lavender can directly alter the properties of essential oil and phytochemical compounds.