the development of seminal and lateral root system plays a major role in plant access to water and nutrients under abiotic stress, especially salinity. in order to understand the relation between root growth responsesand shoot physiological indices oftwo bread wheat cultivars contrasting in salt tolerance (kavir and shiraz), a greenhouse experiment was conducted with two salinity levels (0 and ...

Leadership Studies is a new interdisciplinary field of Organization Studies that is growing at a steady rate all over the world. Leadership studies are seen as a branch of Management and Organization Sciences despite its philosophical roots that can be traced back to Plato’s philosophical writings such as Laws, Politics, or The Republic. Starting from Burns’ seminal book, Leadership (1978), and...

The theme of unit roots in macroeconomic time series have received a great amount of attention in terms of theoretical and applied research over the last three decades. Since the seminal work by Nelson and Plosser (1982), testing for the presence of a unit root in the time series data has become a topic of great concern. This issue gained further momentum with Perron’s 1989 paper which emphasiz...

Using the facultative root hemiparasite Rhinanthus minor and its host Hordeum vulgare several aspects of water relations have been measured in this parasitic association. Extraction of xylem sap by the parasite from the host's roots is facilitated by con siderably higher transpiration per leaf area in the parasite than in the host and by the fact that stomata of attached Rhinanthus were open al...

leadership studies is a new interdisciplinary field of organization studies that is growing at a steady rate all over the world. leadership studies are seen as a branch of management and organization sciences despite its philosophical roots that can be traced back to plato’s philosophical writings such as laws, politics, or the republic. starting from burns’ seminal book, leadership (1978), and...

In an insightful review on secondary control, B. Morling and S. Evered argued that the seminal article spawning the construct (F. Rothbaum, J. R. Weisz, & S. S. Snyder) contained the roots of two distinct conceptualizations focusing on "fit" and "control" and that distinguishing between them clarifies inconsistent research findings. They concluded that the best definition of secondary control f...