Vol. 11, Issue 4 (2022)

Author(s):
R Saini, A Dahiya, HS Saini, B Brar, Sunita Verma and A Verma

Abstract:
Iron augmentation of rice varieties had been carried out by agronomical biofortification for enhancing the concentration of iron in the present study. Biochemical changes in shoots tissues of rice varieties were investigated in response to augmented iron concentrations at vegetative and reproductive stages. Large values of Ascorbic Acid varied from 701.1 to 1358.9 among treatment combinations at the vegetative stage of genotypes. Values expressed by hydrogen peroxide varied from 413.7 to 764.4, a total deviation from 9.4 to 30.1 for malondialdehyde values. Short range that varied from 5.3 to 12.1 was seen for the values of total glutathione while catalase expressed variation from 19.1 to 55.8 among treatment combinations. Estimation of shoots tissues at reproductive stage seen short range from 4.4 to 9.6 was seen for of the total glutathione values of while catalase expressed variation from 15.5 to 40.8 among treatment combinations. Superoxide dismutase ranged from 38.5 to 76.4 while as corbate peroxidase values deviated from 14.5 to 59.5 as observed in present study. Very large deviation had expressed by peroxidase values i.e. 85.1 to 370.2. Least deviation had observed among values of glutathione reductase among the treatment combinations viz 12.2 to 30.5.Biplot analysis observed the total variation of 97.2% had been explained by first two principal components. Major contributors were catalase peroxidise of vegetative stage and ascorbic acid, catalase, ascorbate peroxidise, peroxidase of reproductive stage of genotypes. Agro Biofortification with a proper balance of iron augmentation induce desirable effect on the physiological process of the plants.