Plant extracts have recently been used for nanoparticles green synthesis since they are rich in bioactive compounds. The potential of biomolecules present plant to reduce metal ions NPs a single–step process is very important. In this study, we reported the silver by reducing solution nitrate cell free aqueous extract Capparis spinosa leaves. Silver (AgNPs) were successfully synthesized using C. and nature was analyzed UV–Vis spectroscopy, transmission electron microscopy, X–ray diffraction...

In the present study, Lepidium draba root was used to fabricate silver nanoparticles (Ag NPs). The NPs produced with different amounts of this weed extract were analyzed by Fourier transform-IR spectroscopy. X-ray diffraction analysis and FE-SEM TEM techniques also morphologically investigate particles' crystal structure. Staphyloccocus aureus, Bacillus cereus, Salmonella typhimurium, Escherichia coli then utilized evaluate antibacterial activity Ag NPs. SEM showed formation dispersed within...

Abstract Astragalus is the largest genus of seed plants with 3000 or more species that occurs naturally on several continents. The has some use as a forage and medicine in industry, many are rare endemics threatened extinction. seeds reported to be dormant at maturity, various treatments have been used an attempt germinate them. Our primary aim was determine via meta-analysis most effective way(s) break dormancy this species-rich genus. Mechanical chemical (conc. sulphuric acid)...

Dracocephalum kotschyi Boiss. and D. polychaetum Bornm. (Lamiaceae family) are wild medicinal herbs native to Iran a source of potential bioactive compounds for pharmaceutical food industries. For their bulk production, the present work aimed investigate effects explants, different plant growth regulators (PGRs), photoperiod conditions on callus induction cell suspension two species. A factorial experiment method based completely randomized design with three replications was chosen. The best...

Herbicide resistance can affect seed germination and the optimal conditions required for germination, which in turn may impose a fitness cost resistant populations. Winter wild oat [Avena sterilis L. ssp. ludoviciana (Durieu) Gillet Magne] is serious weed cereal fields. In this study, molecular basis of to an ACCase herbicide, clodinafop-propargyl, four A. biotypes was assessed. Germination differences between susceptible (S) ACCase-resistant (WR1, WR2, WR3, WR4) effect...

Investigation of the direct regeneration from node explant Capparis spinosa L. in MS medium containing different hormones

Background and objectives: There are some reports on seed development in medicinal plants, but no information has been reported of Nigella sativa. The purpose this study was to investigate quality traits including time maturity physiological maturity, germination dormancy changes 14 different ecotypes black cumin. Materials methods: A randomized complete block design conducted at the Aburaihan Campus University Tehran 3 replications 7 harvest times during two years 2018 2019. Treatments were...

Introduction Environmental stresses, especially drought and salinity stresses are considered as inhibitors of plant growth development. The stress cause delay in germination, decrease the rate percentage germination emergence roots stems stage. It seems that if seed could pass through stage under conditions, seedling will have more opportunity to grow develop, higher ability tolerate overcome adverse environmental conditions. This greatly depends on biochemical physiological structures...

Environmental factors influences the performance of herbicides. Drought may affect effectiveness some herbicides; however, our knowledge about interaction between drought stress and response different species to application herbicides is limited. Therefore, dose-response trials were conducted on two major weeds wheat fields investigate influence sulfosulfuron effectiveness. At 2-leaf stage, Hordeum spontaneum Sinapis arvensis subjected irrigation regimes (10 65% available water depletion) 7...