Comparative effects of chitosan and SiO2 nanoparticles on seed germination of barley (Hordeum vulgare L.)
سال انتشار: 1395
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 728
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شناسه ملی سند علمی:
AFPICONF04_041
تاریخ نمایه سازی: 18 تیر 1396
چکیده مقاله:
The present study was aimed to investigate the effects of chitosan and SiO2 nanoparticles (NPs) on germination and growth of barley. A factorial experiment (2×4) was performed based on a completely randomized design in three replications. The experimental factors included the above NPs types with concentrations at 0, 30, 60 and 90 ppm. Seeds were separately soaked for six hours, along with the above concentrations of both types of NPs. The NPs treatments did not show any significant effect on parameters such as Germination Percentage (GP), Germination Rate (GR), Mean Germination Time (MGT), Mean Daily Germination (MDG), seed vigor index II, dry weight of seedling and root. Yet, increase in the concentration of both NPs had significant effects on shoot, seedling, root length, fresh weight of seedling, shoot and root, as well as vigor index I. In most traits, the best concentration of NPs was 30 ppm. Applications of NPs in 90 ppm displayed adverse effects on shoot dry weight, fresh weight of seedling and shoot. Finally, direct exposure to the above mentioned NPs have produced both positive and negative effects on barley growth, so selectivity in applications of NPs is essential
کلیدواژه ها:
نویسندگان
Faride Behboudi
PhD Student at Department of Cultivation, Faculty of Agriculture, University of Tarbiat Modares,
Zeynolabedin Tahmasebi Sarvestani
Associate Professor, Agronomy Department, Faculty of Agriculture, Tarbiat Modares University,
Mohamad Zaman Kassaee
Professor in Organic Chemistry, Department of Chemistry, Tarbiat Modares University,
Seyed Ali Mohamad Modares Sanavi
Professor in Plant Physiology, Agronomy Department, Faculty of Agriculture, Tarbiat Modares University,
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