fars province is one of the natural habitats of pyrus species in iran. harvesting of fruits, deforestation, expansion of agriculture and overgrazing in recent years has threatened the wild pear open forests and imposed detrimental effects on their natural regeneration, therefore, investigation on propagation of wild pear species for afforestation is needed. this research was carried out to deve...

To understand development it is useful to analyze simple systems. Because of the simplicity of its organization, the Arabidopsis root is one of the most tractable systems for the study of plant organogenesis. Using primarily molecular genetic approaches, rapid progress has been made in identifying some of the pathways regulating root development. Over the past 10 years, control of radial patter...

abstract plant roots absorb water and minerals from soil solution. plant production is a function of root distribution and its activity in soil. by increasing root density in soil unit volume, roots absorb more water and minerals. this implies that knowledge of root development is an important factor for crop production. to determine the most suitable amount of water for the maximum development...