Epoxidation of argentilactone (1) with m-chloroperbenzoic acid gave a diasteromeric mixture of 2 and 3 in a ratio 1.8 : 1, with total yield 60%. The configuration of 7,8-oxirane ring for both diasteromers was determined by NMR analysis. Reaction of 1 with urea hydrogen peroxide gave the 3,4-epoxide (4) in 65% yield. The in vitro activity of 2, 3, 4 and argentilactone against Leishmania amazonen...

  Length composition data (fork length) of kawakawa (Euthynnus affinis ), landed between April 2003 to March 2005 in Coastal Waters of Hormozgan province in Iran ( Persian Gulf and Sea of Oman) , were monthly used to estimate the p opulation parameters and for the assessment of the stock. The growth parameters of von Bertalanffy equation were estimated as L∞: 87.66 cm, K: 0.51 per year and t0: ...

Two field experiments were carried out during the winter seasons of 2000/2001 and 2001/2002 at the Agricultural Experimental Station (at Abeis) Alexandria University, to investigate the response of globe artichoke plants cv. French, to the inoculation with Halex2 and Microbein biofertilizers under varying N levels (0, 45, 90 and 135 kg N fed -1 ). The results indicated that increasing N applied...

In order to study the effect of organic fertilizer on shoot yield and essential oil content of lavender, this experiment was conducted in the Research Institute of Forest and Rangelands, Karaj, Iran, in 2013-14. The treatment groups consisted of vermicompost (0, 5, 10 and 15 ton/ha) and cow manure (0, 10, 20 and 30 ton/ha). The experimental design was a factorial experiment based on randomized ...

In order to evaluate the impact of different amounts of nitrogen fertilizer on growth and yield of two forage sorghum cultivars, a 2-year field experiment was carried out at the College of Agriculture, Shiraz University, Shiraz, Iran during 2010 and 2011 growing seasons. Two factorial experiments were carried out in randomized block design with three replicates, in which the treatments included...

this experiment was conducted to study the effect of transplanting date of onion set and transplant on earliness of onionpopulationsin khuzestan province at behbahan agriculture research station in khuzestan province and farm of baghe-e- malek region within one year (2013-14). experiment was performed in split factorial based on rcbd with three replications. main plot consisted of propagule typ...

0168-583X/$ see front matter 2010 Elsevier B.V. doi:10.1016/j.nimb.2010.11.098 ⇑ Corresponding author. E-mail addresses: [email protected] (L. R uj.edu.pl (Z. Postawa). Molecular dynamics computer simulations are employed to probe processes taking place during continuous irradiation of Ag(1 1 1) surface by keV Ar872 projectiles. Surface modification, the total sputtering yield, and the a...

Switchgrass (Panicum virgatum L.), a US Department of Energy model species, is widely considered for US biomass energy production. While previous studies have demonstrated the effect of climate and management factors on biomass yield and chemical characteristics of switchgrass monocultures, information is lacking on the yield of switchgrass grown in combination with other species for biomass en...