نتایج جستجو برای: scarification with sandpaper
تعداد نتایج: 9191786 فیلتر نتایج به سال:
Senna obtusifolia presents structures favorable to the effects of dormancy phenomenon, presenting low germination rates for a certain period. This panorama can be solved by dormancy-breaking process, which is caused exposure seed adverse conditions that stimulate process. Accordingly, this study aimed evaluate efficiency different methods overcome in (L.) H. S. Irwin & Barneby seeds. A comp...
BACKGROUND The species Carpobrotus edulis, native to South Africa, is one of the major plant invaders of Mediterranean coastal ecosystems around the world. Invasion by C. edulis exerts a great impact on coastal habitats. The low number of native species in invaded communities points to the possible existence of mechanisms suppressing their germination. In this study we assessed whether soil fac...
The Limited Receptive Area (LIRA) neural classifier is proposed for texture recognition of mechanically treated metal surfaces. It can be used in systems that have to recognize position and orientation of complex work pieces in the task of assembly of micromechanical devices. The performance of the proposed classifier was tested on specially created image database in recognition of four texture...
Wood surface roughness, free energy (SFE), wettability, and bonding quality for water-based acrylic coatings were investigated. The samples tested in this study included Pinus radiata, sylvestris, Larch, Hemp oak, Catalpa tree, Camphor. Sandpaper with grits of 180, 240, 320, 400, 500 was utilized to sand wood surfaces. van OSS-Chaudhury-Good equation (vOCG) used calculate the SFE values. modifi...
Salsola turcomanica (Litv) is a widespread wild plant species in Middle Eastern arid and semi-arid areas and is a relatively palatable halophyte species that has low establishment rate in the field. In winter 2017, in order to optimize the germination indices, its seeds were treated by scarification, stratification, scarification after stratification, gibberellic acid, potassium nitrat...
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