Seed dormancy has an important role in resistance and survival mechanisms of plants. Finding of some information about the range of primary dormancy and effective factors in dormancy breaking and optimal conditions of seed germination are necessary for weed control and other research purposes.  In this research, the seeds of 10 species of grass weeds in Tehran province fields (Echinocloa...

Transition metal selenides are widely used in electrocatalysis on account of high electrical conductivity, good stability and low cost. In this study, using nickel-cobalt layered double hydroxide (NiCo-LDH) as precursor, a simple two-step method was to prepare three-dimensional (3D) Setaria viridis-like NiCoSe2 nanoneedles arrays nickel foam (NiCoSe2 NNA/NF). Benefiting from the abundant cataly...

Soil surfaces form complex crack networks as a result of water loss and shrinkage. A network destroys the integrity soil becomes main factor affecting rainfall infiltration, slope instability integrity. In this paper, fracture is quantified using fractal characteristics dimensions, identified calculated digital image processing technology. The silty clay with different setaria viridis root cont...