TY - JOUR AU - DENRE, Manas AU - BHATTACHARYA, Amitava AU - PAL, Srikumar AU - CHAKRAVARTY, Arunabha AU - CHATTOPADHYAY, Arup AU - MAZUMDAR, Debasis PY - 2016/09/22 Y2 - 2024/03/28 TI - Effect of Foliar Application of Micronutrients on Antioxidants and Pungency in Onion JF - Notulae Scientia Biologicae JA - Not Sci Biol VL - 8 IS - 3 SE - Research articles DO - 10.15835/nsb839858 UR - https://www.notulaebiologicae.ro/index.php/nsb/article/view/9858 SP - 373-379 AB - <p style="text-align: justify;">The aim of the present work was to study the effect of foliar application of micronutrients [Zinc: Zn<sub>1 </sub>(0%); Zn<sub>2 </sub>(0.5%); Zn<sub>3 </sub>(1.0%) and Boron: B<sub>1 </sub>(0%); B<sub>2 </sub>(0.25%); B<sub>3 </sub>(0.5%)] on the antioxidants and pungency of onion cv. “Sukhsagar” (<em>Allium cepa</em> L.). In this experiment, it was suggested that the highest contents of total and free phenol was obtained by the highest dose of Zn (1%) in combination with 0% B, and single dose of Zn (0.5%) in combination with 0% B respectively. The superoxide dismutase (SOD) activity was found to increase with respect to control following the highest dose of B (0.5%) alone. However, the peroxidase (POD) activity increased more with respect to control following the single dose of B (0.25%) rather than the double dose (0.5%). The highest Molybdate reducing antioxidant potential (MRAP) was observed in 0.5% Zn in combination with 0% B, whereas that of 2, 2-Diphenyl-β-picrylhydrazyl radical scavenging activity (DPPHRAC) was found in the interaction effect of the double doses of both Zn (1%) and B (0.5%), which also offered the lowest lipid peroxidation. The highest pyruvic acid development was observed by the interaction effect of 0% Zn and 0.25% B. Based on the average values of the biochemical parameters and the results of PCA, the treatment with Zn<sub>1</sub>B<sub>3</sub> (0% of Zn in combination with double dose of 0.5% of B) was proved to be most promising with respect to antioxidant properties.</p> ER -