نوع مقاله : مقاله پژوهشی
نویسندگان
1 مؤسسه آموزش عالی سنا، ساری، ایران
2 مؤسسه آموزش عالی سنا
3 گروه مرتع و آبخیزداری، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی، اردبیل، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
To investigate the effect of foliar application of iron nanoparticles and putrescine (Put) on morphological, physiological, and biochemical traits of the medicinal plant Salvia officinalis L. under salinity stress, a factorial experiment was conducted based on a completely randomized design. The treatments included salinity at three levels (0, 75, and 150 mM sodium chloride), iron nanoparticles at four levels (0, 50, 100, and 200 ppm), and putrescine at three levels (0, 0.5, and 1 mM). The results showed that salinity stress significantly reduced morphological traits (plant height, leaf number, shoot fresh and dry weight) and chlorophyll content, while increasing the content of carotenoids, soluble sugars, proline, flavonoids, and the activity of catalase (CAT) and peroxidase (POD) enzymes. Application of iron nanoparticles (particularly at 200 ppm) and putrescine (1 mM) significantly mitigated the negative effects of salinity and enhanced all studied traits compared to the control treatment. The highest increase in shoot fresh and dry weight, total chlorophyll content, and antioxidant enzyme activity was observed in the combined treatment of iron nanoparticles (200 ppm) plus putrescine (1 mM). Based on the findings, the application of iron nanoparticles and putrescine can ameliorate the adverse effects of salinity stress in sage plants by improving growth, physiological, and biochemical traits.
کلیدواژهها [English]
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