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...

Selection based on indices is an effective method for breeding complex traits. To assess the efficiency of different selection methods, twenty one accessions of Sainfoin (Onobrychis viciifolia) were evaluated in two environments including drought stress and non-stress conditions according to a randomized complete block design with three replications in 2010. In this study, the selection indices...

this research was conducted in two protect and destroy region in the middle zagros, in illam province. in order to identification of ecological species group and evaluate density of regeneration, effect of many factors such as protection, vegetation, physiographic factors, physical and chemical properties of soil in study locations were studied. to achieve these purpose number of 54 plots using...

Extended abstract Introduction and Objective: In order to increase the motivation of farmers to cultivate open pollinated oilseed rape cultivars, new cultivars with appropriate yields should be introduced. Also, due to the effects of climate change, increase in temperature, early arrival of heat and intensification of drought stress at the end of the season in the warm and dry regions, it is a...

most of the verbal constructions of harzani dialect have got inflectional affixes. the majority of the constructions are made up vy adding a specific verbal affix to the verbal stem (infinitive without infinitive marker). only a few number of them is formed by adding a verbal affix to the past participle of the verb. there are specific rules for the formation of different verbal types. there is...

In order to evaluate the yield, agronomic characteristics and response of sesame promising lines to wilting disease using multivariate methods, an experiment was conducted in a randomized complete block design with three replications in 2019. The genetic plant materials evaluated in this study included the superior 20 selected lines along with Oltan as the control cultivar. During the growing s...

Tobacco (Nicotiana tabacum L.) is one of valuable agricultural and industrial crops. Studying most important traits of tobacco is difficult because of quantitative nature that are controlled by multiple genes and affected by environmental factors. Among various methods for the study of quantitative traits, association mapping which utilize phenotypic and DNA markers information is one of the ef...