The different market samples of Terminalia chebula fruits evaluated by Pharmacognostic parameters compare with standard data. All three samples carried out microscopic characters, ash values, extractive values, T.L.C., & chemical tests. All the data of three samples were compared with standard data, the sample no-1 was more authentic than among all the three samples.

The rhizome of Nelumbo nucifera Gaertn (fam. Nymphaeaceae) was studied to fix the parameters for pharmacognostical standards. The present investigation deals with the macro and microscopically characters of rhizome along with studies on some physical constants, behavior of powdered rhizomes on treatment with different chemical reagents and florescence characteristics on exposure to U.V light, w...

The major diagnostic characters and qualitative chemical and physical tests responsible for the pharmacognostic identity of the leaf and of root of Polyscias fruticosa (L) Harms have been reported. Literature survey showed the absence of any systematic pharmacognostic studies for this plant.

Alpinia galanga Linn. (Willd) is an important raw drug used in large quantities in various indigenous formulations. In this paper the major diagnostic characters and the qualitative chemical and physical tests responsible for the pharmacognostic identity of the rhizomes have been reported.

Taxa in the genus Melanelia (Parmeliaceae, Ascomycota) belong to a group of saxicolous lichens with brown to black foliose thalli, which have recently undergone extensive changes in circumscription. Taxa belonging to Parmeliaceae are prolific producers of bioactive compounds, which have also been traditionally used for chemotaxonomic purposes. However, the chemical diversity of the genus Melane...

in order to study the effect of biological and chemical fertilizers of nitrogen and phosphorus on some physiological, morphological and phenological traits of sunflower this study was carried out in eivanegharb (ilam province) in summer of 2011. treatments were arranged in split factorial based on rcbd with three replications. the main plot include 4 levels of phosphorus and nitrogen chemical f...

Temperate and dry deciduous forest covers major portion of terrestrial ecosystem in India. The two forest types with different dominant tree species differ in litter quality and root exudates, thereby exerting species-specific impact on soil properties and microbial activity. This study aims to examine the influence of forest type or dominant tree species on soil physico-chemical properties and...

Evolution of flight in maniraptoran dinosaurs is marked by the acquisition of distinct avian characters, such as feathers, as seen in Archaeopteryx from the Solnhofen limestone. These rare fossils were pivotal in confirming the dinosauria-avian lineage. One of the key derived avian characters is the possession of feathers, details of which were remarkably preserved in the Lagerstätte environmen...

potassium ferrate has been used as a multi-purpose chemical in treatment of wastewaters. with the formula of k2fe04 it has 3 excellent characters for water treatment, so by using it alone, it would be possible to confine all reactivity, it is essential to prepare ferrate at the point of use. in this study, k2fe04 was synthesized, then it has been employed for chlorine gas with an alkaline solut...