Journal
PLANT PHYSIOLOGY AND BIOCHEMISTRY
Volume 162, Issue -, Pages 564-580Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.plaphy.2021.03.023
Keywords
alpha-Fe2O3 nanoparticles; Green synthesis; Seedling growth; Translocation; Physiological effects; Yield parameters
Categories
Funding
- Natural Resource Management (NRM), Indian Council of Agricultural Research (ICAR), Ministry of Agriculture, Government of India [F.No.NRM.11 (16)/2015AFC (4)]
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In this study, nanoscale micronutrient iron prepared using marine macro alga Turbinaria ornata was found to be an effective priming agent for enhancing seed germination and growth of rice and maize crops. Additionally, foliar application of low concentration nanoscale micronutrient iron significantly increased chlorophyll content and yield attributes of rice and maize crops under field conditions.
In the present study, nanoscale micronutrient iron (alpha-Fe2O3) has been prepared via co-precipitation using marine macro alga Turbinaria ornata. The nanoscale micronutrient iron has been used as priming agent for enhancing seed germination, seed quality, uptake, translocation, physiological effects and yield level of rice and maize crops. The physico-chemical characterization techniques results showed the successful preparation of nanoscale micronutrient iron. Seeds primed with nanoscale micronutrient iron at 25 mg/L significantly enhanced the seed germination and seedling parameters in comparison with conventional hydro-priming. ROS production in germinating nano-primed seeds of rice and maize enhanced the seed germination better than the conventional hydro-priming. Uptake and distribution of nanoscale micronutrient iron in rice and maize seedlings were studied using HR-SEM & ICP-MS analysis. Foliar application of low concentration (10 mg/L) nanoscale micronutrient iron under field conditions significantly increased the chlorophyll content, yield attributes of rice and maize crops.
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