in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...

In order to evaluate effect of plant density and water deficit on the growth, yield and yield component of soybean, an experiment was carried out in split plot design based on RCBD with four replications at the research station of Seed and Plant Improvement Institute in Karaj-Iran in 2006. In this experiment, water deficit treatment in three levels was placed as main plot (water withholding at ...

To investigate the effect of humic acid application on agronomic characteristics of canola (Brassica napus L.) genotypes in different plant densities, a factorial split-plot experiment was performed using a randomized complete block design with three replications in the Seed and Plant Improvement Institute, Karaj, Iran. Plant density at three levels of 40, 60 and 80 plants/m2 and humic acid at ...

The present study was conducted to evaluate the effects of plant density on yield and yield components of different safflower cultivars. For this purpose, a factorial experiment based on randomized complete block design was conducted with four replication and two factors included cultivar (Esfahan, Goldasht and Sofeh) and plant density (40, 65 and 90 plants/m2). Results showed the main effect o...

 An experiment was conducted to study the effects of some agro-technical factors (plant density, sowing date and cultivar) on qualitative and quantitative yield in two cultivars of Red bean (Phaseolus vulgar cv. Saiad, Naze) under the climatic conditions of Zanjan. The experiment was executed as split-plot factorial based on randomized complete block design with three replication. Sowing date w...

In order to examine the effects of plant density on the morohological traits, yield and essential oil of peppermint, an experiment was conduced in Agricultural College of Tabriz University during 2005 and 2006. The treatments included four plant density levels ( 8,12 ,16,20 plants.m-2) with three replications. The treatments were based on a split plot design in time and result analysis of compo...

Planting density, through its impact on the level of available environmental factors may have significant impacts on grain yield in safflower (Carthamus tinctorius L.). In order to investigate the impacts of plant density on grain yield, yield components and growth characteristics of safflower, a randomized complete block design field experiment with four replicates was conducted in spring-summ...