Vol. 12, Issue 10 (2023)

Author(s):
Meghashree R, Chandrashekar SS, Hilli JS and Motagi BN

Abstract:
Groundnut (Arachis hypogaea L.) is India’s important oilseed legume crop. Application of micronutrients through green synthesized nanoparticles is way forward in enhancing seed quality parameters through physiological positive manifestation. The lab experiment was conducted to investigate the effect of green synthesized Zn and Fe nanoparticles on seed quality parameters in groundnut at the Department of Seed Science and Technology, University of Agricultural Sciences, Dharwad. The experiment was laid out in Factorial completely randomized design with three replications and nine treatments. Groundnut varieties (JL-24 and Dh-256) were primed with different concentrations of iron and zinc nanoparticles i.e., Fe NPs (100, 200 and 300 ppm) and Zn NPs (200, 300 and 400 ppm) solutions for the period of 30 min for each concentration. Results revealed that among treatments seeds primed with Zn NPs, 400 ppm for 30 min recorded higher germination percentage (95.52%), shoot length (11.42 cm), root length (16.53 cm) and seedling vigour index I (2670), seedling dry weight (3.86 g), seedling vigour index II (367) and lower electrical conductivity (0.072) as compared to control. Among the varieties, Dh-256 showed higher germination percentage (92.59%), shoot length (9.55 cm), root length (14.93 cm), seedling vigour index I (2274), seedling dry weight (3.39 g), seedling vigour index II (367) and lower electrical conductivity (0.116) as compared to control. Between treatments and varieties for germination percentage, seed and root length and vigour index I & II, seedling dry weight and lower electrical conductivity recorded significant difference.