BACKGROUND AND AIMS Root absorption and assimilation of inorganic nitrogen usually alters rhizosphere pH, but the immediate influence of such pH changes on root elongation as well as that of exogenous inorganic nitrogen itself has been uncertain. METHODS A differential extensiometer that monitored on a real-time, continuous basis root elongation in an intact 3-d-old maize plant was developed....

the response of root to water stress is one of the most important parameters for researchers. study of growth and distribution of root under different irrigation managements helpsresearchersto a better understanding of soil water content, and the availability of water and nutrition in water stress condition. to investigate the effects of four levels of irrigation under two different deficit irr...

Introduction: The exact measurement of the root canal length is of great importance in root canal therapy. Although, determination of the root canal length through radiography is the most common method, recently electronic apex locators are being used to determine working length and decrease the number of radiographs. The purpose of this study was to compare the accuracy of an electronic apex l...

introduction: the aim of the present study was to compare the efficacy of 2% lidocaine to 4% articaine in buccal infiltration of maxillary first molars with irreversible pulpitis. moreover, the effect of root length on success of anesthesia irrespective of the type of anesthetic agent was assessed. methods and materials: fifty patients suffering from painful maxillary first molars with irrevers...

in order to evaluate the effect of different irrigation intervals on some morphophysiological traits of sesame (sesamum indicum l.), an experiment was conducted under greenhouse conditions during 2009. the experiment was based on a randomized completely design with three replications. treatments included four irrigation intervals with 4, 8, 12 and16 days intervals and two ecotypes of sesame (ka...

The evaluation of the embryonic root and stem bread wheat (Triticum aestivum L.) in early stage development (seedling stage) can be a powerful tool breeding aimed at obtaining progenies with greater vigour. It is revealed that genotypes faster vigour have produced higher biomass grain yield. In this study, traits 101 was preformed 10-day old seedlings. following eight morphological roots stems ...

Two different propagation procedures including aeroponics and soil systems were compared for the minitubers production in potato. The minitubers were evaluated for several quality characters. The plant materials were from three cultivars, Agria, Marfona and Savalan. The plantlets were grown in aeroponics and soil production systems at a plant density of 100 plants per m-2 and stem length, root ...

it is well known that sugar beet is sensitive to salinity stress at the germination stage. three separate experiments were conducted to study the effects of salinity on seed germination, plant establishment, and yield of sugar beet genotypes for screening purposes. these included: (a) a laboratory study using four water salinity levels (with ec values < 0.1 as the control, 16, 20, and 24 ds m-1...