Effect of Modes of Application of Nitric Oxide on the Growth and Physiological Performance of Indian Mustard

By : Shazia Hasan, Shamsul Hayat, Mohammad Faizan

Page No: 45-53

Abstract
Sodium nitroprusside (SNP) in minute concentration serve as a signaling molecule for processes involved in the growth and development of plants. The objective of this study was to explore the role of SNP as foliar spray and seed soaking on the growth biomarkers, photosynthetic traits, leaf protein content and various antioxidant enzymes in 30-day-old plants of mustard (Brassica juncea)cv. varuna under natural condition. The seeds were soaked in 0, 10-4, 10-5 or 10-6 M of SNP for 8 h and sown in the pots and in another group foliage were sprayed with 0, 10-4, 10-5or 10-6M of SNP at 21, 23 and 25 day stage of growth; both the sets were allowed to grow for 30 days. The plants that developed from SNP treatments (seeds soaking or foliar spray) possessed higher growth, photosynthetic attributes, activity of various antioxidant enzymes [e.g., catalase (EC 1.11.1.6), peroxidase (EC 1.11.1.7) and superoxide dismutase (1.15.1.1)] and proline and protein content than the respective control. Among the treatments, 10-5M of SNP as seed soaking proved best.

Authors :
Shazia Hasan, Mohammad Faizan and Shamsul Hayat : Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh-202002
 

DOI: https://doi.org/10.32381/JPSR.2019.35.01.5