Abstract:
Iron deficiency is a widespread problem in plants, that leads to interveinal chlorosis. High pH and high bicarbonate ions in calcareous soils make iron physiologically unavailable to plants, despite its abundance in nature. Various methods are in practice to cope with the problem of iron deficiency in plants that are expensive and less effective. Nanotechnology has emerged as an innovative field with vast applications in different fields of life including agriculture, military, and medicine. Green synthesized iron oxide nanoparticles have the potential to reduce iron from Fe3+ to Fe2+, hence making it available to plants. The present study demonstrated the effects of iron oxide nanoparticles (3mg/L, 25mg/L and 50 mg/L) on the alleviation of iron deficiency induced chlorosis in the peanut (Arachis hypogaea L.). Iron oxide nanoparticles were synthesized from Eucalyptus globulus L. leaves by green synthesis. At 298nm wavelength, UV-VIS spectroscopy indicated the formation of Iron oxide nanoparticles that were later confirmed by the FTIR analysis. Different concentration of nanoparticles in solution form improved the symptoms of iron deficiency as compared to control in hydroponics experiment. The root fresh and dry weight, shoot dry and fresh weight, root and shoot lengths enhanced with 50mg/L concentration (p<0.05). Changes in the physiological i.e., chlorophyll a (96% with 50 mg/L conc.) and biochemical parameters such as CAT, POD, SOD, POD, chlorophyll content, ferric reductase and active iron significantly increased as compared to control. SOD and POD showed 67% enhanced activity with 50mg/L Fe nanoparticles (p<0.05). Iron oxide nanoparticles with concentration 50mg/L proved most effective results. Genotype 15465 was resistant to Fe deficiency with highest roots reducing capacity at 4,8,10 and 14 days after iron deficiency.
Page(s):
0-0
DOI:
DOI not available
Published:
Journal: First International Conference on Revamped Scientific Outlook of 21st Century (Abstract Book), Volume: 0, Issue: 0, Year: 2022
Keywords:
Roots reducing capacity
,
peanut
,
Iron oxide nanoparticles
,
Iron deficiency