A rapid and sensitive reversed-phase high-performance liquid chromatographic (RP-HPLC) method has been used for determination of furanocoumarins in methanolic extracts of Peucedanum tauricum Bieb. HPLC separation was performed on a C18 analytical column (250 mm × 4 mm i.d., 5-μm particles) with a methanol–water gradient as mobile phase. A second chromatographic system with an acetonitrile–water...

the essential oil of peucedanum ru t h e n i c u m fruits, obtained by hydrodistillation, was analyzed by gas chromatography and gas chromatography mass spectrometry. among the 31 identified constituents accounting for 83.9% of the total oil, the major components were 1,8-cineole (11.15%), camphor (5.86%), z-carveol (6.88%), l-carvone (5.61%), 8,9-dehydroisolongifolene (11.35%), caryophyllene o...

Three mixtures were used for wet digestions: nitric and sulphuric acids, 30 per cent. hydrogen peroxide and sulphuric acid, and selenium and sulphuric acid. In the nitric acid digestion 3 ml. of conceintrated sulphuric acid was used for each gram of dry plant material, a total of 50 inl. of concentrated nitric acid was added in four portions, the mixture being evaporated to white fumes and cool...

An attempt was made to demonstrate multiple resistant tomato hybrid Arka Rakshak for resistance against fruit borer and fungal diseases in field. Crop damage caused by borer, whitefly thrips measured on the basis of damaged fruits, leaves separately. In order assess per cent damage, fruits five randomly selected tagged plants were counted as total available observed plants. Evaluation host plan...

Phytochemical constituents are non-nutritive plant chemicals that have preventive and curative properties of disease. The use of plants and phytochemicals, both with known biological properties, can be of great significance in therapeutic treatment. The present study includes phytochemical screening and quantification of secondary metabolites and their biological activities of root extract of S...

In this research paper, a newly identified plant species of the genus Abutilon Mill., namely jafrii F. Naseer, A. Noor & Rahman, is described and illustrated for first time in province Sindh, Detailed morphological descriptions along with micro-morphological examinations scanning electron microscopy (SEM) mericarps, seeds pollens are presented. Additionally, Macro characteristics including ...

Mutants of Mesorhizobium ciceri BICC 651 were generated by N-methyl-N'-nitro-N-nitrosoguanidine mutagenesis. Siderophore overproducing mutants were identified on Chrome azurol S agar plates. One of them determined as N15 was examined for symbiotic efficiency and compared to its wild type parent i.e. BICC 651 strain under sterile conditions using Leonard jars in growth chamber and also in pots c...

The chemical composition, antioxidant potential and antimicrobial activity were studied in six walnuts (Juglans regia L.) cultivars (cv. Franquette, Lara, Marbot, Mayette, Mellanaise and Parisienne) produced in Portugal. Concerning their chemical composition the main constituent of fruits was fat ranging from 78.83% to 82.14%, being the nutritional value around 720kcal per 100g of fruits. Linol...

Tomato fruits grown in greenhouses were collected from Al–Karj region during summer 2008. Seven bacterial isolates that characterized as Gram negative, short rod–shaped, yellow-pigmented bacterium were isolated and recovered from the internal discoloration tissue of there collected fruits. Symptoms of infected fruits were blackening of the vascular vessels of tissue reached to seeds and lack an...

Meloidogyne partityla is a parasite of pecan and walnut. Our objective was to determine interactions between the entomopathogenic nematode-bacterium complex and M. partityla. Specifically, we investigated suppressive effects of Steinernema feltiae (strain SN) and S. riobrave (strain 7-12) applied as infective juveniles and in infected host insects, as well as application of S. feltiae's bacteri...