Effect of Seed Magnetic Treatment on Next Generation of Green Gram (Vigna radiata L.)

Abstract

Following the promising outcome obtained from the application of magnetic field treatment with varying intensities and durations during the initial green gram crop cultivation, treatment T7 (225 mT for 75 min) emerged as the optimal choice among all treatments. A subsequent study was conducted at the farm of Navi vasni, Aravali, Gujarat to explore the continuous effect of magnetic field therapy on germination, growth, progress, and yield of green gram during the kharif season of 2023. Green gram (Vigna radiata) seeds from treatments T1 (control) and T7 (225 mT for 75 min) from the first crop cultivation were utilized without further treatment. Additionally, three other combinations were subjected to different magnetic field strengths (100, 350, and 225 mT) for durations of 75, 75, and 100 minutes, respectively, using an electromagnet unit. Each treatment, including non-treated seeds, was replicated three times and planted in the field following a Randomized Block Design (RBD), then further treated with regular water and vermicompost fertilizer. Observation of various physiological parameters (germination percentage, leaf area, shoot and root length, plant height) was recorded at 14-day intervals and chemical, biochemical and yield contributing parameters (N, P, K, Fe, Mn, Zn, Cu, chlorophyll a and b, carotenoid, acidity, vitamin C and seed yield plant-1) were analyzed at the end of the cropping season. Through statistical analysis, the combination of non-treated seeds from the first crop with a magnetic field intensity of 225 mT and a duration of 75 minutes (T12) demonstrated the best overall performance in this study.