000			02452nam a2200217 4500
003			OSt
005			20250317161741.0
008			250317b |||||||| |||| 00| 0 eng d
040			_cUAS Dharwad
041			_aEnglish
082			_a631.521 _bJAI
100			_aJaibheem
245			_aInfluence of Green Synthesized Silver and Zinc Nanoparticles on Seed Quality Attributes in Red Sanders
250			_aM Sc (Agri)
260			_aDharwad _bUniversity of agricultural Sciences _c2024
300			_a120 _c32 Cms
520			_aABSTRACT Red Sanders (Pterocarpus santalinus), or Rakta Chandana, is an endangered tree native to the Southern Indian peninsula, valued for its medicinal and dye properties. However, its seed germination is hindered by a hard seed coat, phenolic compounds and hormonal imbalances. This study aimed to determine the most effective seed priming treatment to improve germination rates in Red Sanders. The research was conducted with three replications and evaluated seven pre-sowing treatments: T1 (AgNPs at 1000 ppm for 24 hours), T2 (ZnNPs at 2000 ppm for 24 hours), T3 (Conc. H2SO4 for 12 minutes), T4 (NaDC 500 ppm), T5 (Dewinging), T6 (Soaking in hot water at 100°C for 5 minutes) and T7 (Control) in Completely Randomized Design (CRD). The experiment was conducted in Department of Seed Science and Technology and Green Nano-Technology Laboratory, Uniervsity of Agricultural Sciences, Dharwad, during 2023-24. Results indicated that seeds treated with ZnNPs at 2000 ppm (T2) exhibited highest germination rate (56%), germination speed (1.04) along with root length (17.05cm), shoot length (16.33 cm) and highest dry weight (6.22 g) and highest Seedling Vigour Index-I (1869). In comparison, H2SO4 treatment (T3) achieved 51.67 per cent germination and a speed of 0.95, with root length (15.28 cm), shoot length (16.22 cm), dry weight (5.24 g) and Seedling Vigour Index (1628) slightly lower but still significant. The control (T7) had the lowest performance with 31 per cent germination, a speed of 0.36, root length (15.28 cm), shoot length (16.22 cm), lower dry weight (1.63 g) and the lowest Seedling Vigour Index (649). Overall, ZnNPs at 2000 ppm for 24 hrs (T2) were the most effective in enhancing germination, seedling growth and overall vigour in Red Sanders.
650			_aSeed Science and Technology
700			_aKrishna A
942			_cTH _eM Sc (Agri) _h631.521 _kJAI _n0 _6631_521000000000000
999			_c70932 _d70932