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- Title
Tailoring Nanoparticle Formulation for Maize Seed Quality Improvement through Multiple Approaches.
- Authors
EZHILARASAN, K.; GOWDA, RAME; GOWDA, BASAVE; RAMANAPPA, T. M.; NAIK, C. MANJA; NETHRA, N.; ROOPASHREE, B.; UMARANI, K.
- Abstract
This study was aimed to make use of nanotechnology as it facilitates the seed quality attributes and improved production through multiple approaches in maize (Zea mays L.). Laboratory experiments were conducted on maize cv. MAH 14-138 hybrid seeds treated with five different nano and bulk chemicals i.e., Silicon dioxide (SiO2), Titanium dioxide (TiO2), Zinc oxide (ZnO), Iron oxide (FeO) and Sulphur (S) to assess their performance along with seed treatment methods viz., dry dressing, polymer mediated coating and wet soaking. The results of the study showed that dry dressing of SiO2 NPs @ 500 & 1000 mg/kg and TiO2 NPs @ 1000 mg/kg of seeds recorded significantly higher germination (100%) compared to untreated control (92%) and bulk SiO2 @ 500 & 1000 mg/kg registered (97 and 88%, respectively). However, the seedling length (40.20 cm), seedling dry weight (80.51 mg/seedling), seedling vigour index-I (3968) and seedling vigour index-II (7945) were significantly superior in polymer mediated coating with SiO2 NPs @ 1000 mg/kg of seeds over untreated control (28.90 cm, 47.09 mg/seedling, 2649 and 4316, respectively) followed by bulk SiO2 1000 mg/kg (36.45 cm, 71.37 mg/seedling, 3560 and 6970, respectively). Further, highest total dehydrogenase activity (0.853) was recorded in polymer coated with SiO2 NPs @ 1000 mg/kg of seeds when compared to untreated control (0.487) and polymer coated with bulk SiO2 @ 1000 mg/kg (0.765) and the lowest electrolyte leachate (9.36 µS/cm/g) recorded in dry dressing with TiO2 NPs @ 1000 mg/kg of seeds. Therefore, nano coating with SiO2 or TiO2 NPs at the concentrations of 500 mg/kg of seeds by either dry dressing or polymer coating method found to improve the seed quality of maize hybrid when compared to their respective bulk form of chemicals and these techniques could be suggested to enhance the quality of maize seeds.
- Subjects
SEED quality; NANOPARTICLES; CORN; CORN seeds; SILICA; FERRIC oxide; REDOX polymers; IRON oxides
- Publication
Mysore Journal of Agricultural Sciences, 2023, Vol 57, Issue 4, p98
- ISSN
0047-8539
- Publication type
Article