Enhancement of maize seeds germination by magnetopriming in perspective with reactive oxygen species
Journal Title: Journal of Agricultural and Crop Research - Year 2017, Vol 5, Issue 4
Abstract
The utility of stationary magnetic field (SMF) for biostimulation of seeds and associated physio-biochemical changes in maize (Zea mays L.) var. HQPM.1 was studied under laboratory conditions. Magnetopriming improved germination related parameters like percentage of germination, speed of germination, seedling length, fresh weight, dry weight and vigour indices. Among the various parameters seedling length and vigour Index I were the most improved parameters (up to 72 to 59% respectively) after magnetopriming. Two doses (200 mT for 60 min and 100 mT for 120 min) were further taken to understand the involvement of reactive oxygen species (O2.-, .OH and H2O2) and antioxidant enzymes in the magnetoprimed seeds as they were best in improving germination related parameters. Enhanced germination in magnetoprimed maize seeds was coupled with enhanced reactive oxygen species content. Peroxidase (both cytosolic and wall bound) activity was enhanced and superoxide (both cytosolic and wall bound) activity was reduced in the embryo and the eight-day-old seedlings from magnetoprimed seeds. Obtained results indicated that magnetopriming can be effectively used as a biostimulant for seed germination and the impact of SMF is biochemically identified in context with reactive oxygen species.
Authors and Affiliations
Shine M. B. , Kataria S. , Guruprasad K. N. , Anjali Anand
Keywords
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