Seed Polymer Coating with ZnO, SiO2 and TiO2 Nanoparticles: An Innovative Seed Quality Enhancement Technique in Sweet Pepper
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Authors
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LAXMI DUNDAPPA CHOUGALA
University of Agricultural Sciences, Bangalore, Karnataka, India, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryan
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PARASHIVMURTHY
University of Agricultural Sciences, Bangalore, Karnataka, India, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryan
Author
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HARISH MS
University of Agricultural Sciences, Bangalore, Karnataka, India, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryan
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R SIDDARAJU
University of Agricultural Sciences, Bangalore, Karnataka, India, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryan
Author
Keywords:
Sweet pepper, Seed nano polymers, seed qualityAbstract
A laboratory study was undertaken to assess the effect of seed polymer coating with ZnO, SiO2 and TiO2 nanoparticles (NPs) at different concentrations (250 and 500 ppm) on different seeds of vigour lots in sweet pepper at Department of Seed Science and Technology, University of Agricultural Sciences, Bangalore. Among vigour level, high vigour seed lots differed significantly with highest seed germination (84.0%), speed of germination (9.54), mean seedling length (11.53 cm), mean seedling dry weight (4.07 mg), seedling vigour index – I (952), seedling vigour index – II (342), total dehydrogenase activity (1.654), total soluble seed protein (68.24 µg/g), amylase activity (85.47 µmol/min) and decreased electrical conductivity of seed leachates (35.91 µS/cm).Among treatments, seed polymer coating with ZnO NPs at 250 ppm recorded significantly higher seed germination (82.0%), speed of germination (9.22), mean seedling length (11.41 cm), mean seedling dry weight ( 4.24 mg), seedling vigour index – I (937)seedling vigour index - II (348), total dehydrogenase activity (1.506), protein content (72.80 µg/g) and á-amylase activity (76.30 µmol/min) and lowest electrical conductivity (30.64 µS/cm) over control, followed by SiO2 and TiO2 NPs at 250 ppm. However, higher concentrations of NPs reflected inhibitory effect on seed germination and seedling growth (nano ZnO, SiO2 and TiO2 at 500 ppm each).Based on the seed quality evaluation, it was concluded that seed coating with ZnO NPs at 250 ppm can be used to enhance of sweet pepper.
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References
1. QIN C, C YU, Y SHEN, X FANG, L CHEN AND J MIN (2014). Whole-genome sequencing of cultivated and wild peppers provides insights into capsicum domestication and specialization. Proc. Natl. Acad. Sci., 111(14): 5135–5140.
2. www.india agri stat ( 2021).
3. SHERIN SUSAN J, A BHARATI, P NATESHAN AND K RAJA (2005). Seed film coating technology for maximizing the growth and productivity of maize. Kar. J. Agric. Sci. 18(2): 349-356.
4. MAGUIRE JD (1962). Speed of germination aid in selection and evaluation of seedling emergence and vigour. Crop Sci., 2: 176-177.
5. ABDUL-BAKI AA AND JD ANDERSON (1973). Vigour determination in soybean by multiple criteria. Crop Sci.,13: 630-633.
6. KITTOCK DL AND A G LAW (1968). Relationship of seedling vigour, respiration and tetrazolium chloride reduction by germination of wheat seeds. Agron. J.,60: 286-288.
7. SADASHIVAM S AND A MANICUM (2013). Biochemical Methods. 2nd Edn., New Age International, New Delhi.
8. SENTHILKUMAR S (2011). Customizing nanoparticles for the maintenance of seed vigour and viability in Blackgram (Vigna mungo) cv. VBN 4.,M.Sc. (Agri.) Thesis submitted to TNAU, Coimbatore (India).
9. PRADEEP K, SN VASUDEVAN, NM SHAKUNTALA, SR DODDAGOUDAR, H SHARANAGOUDA AND B KISAN (2016). Seed polymer coating with Zn and Fe nanoparticles: An innovative seed quality enhancement technique in pigeon pea. J. Appl. Nat. Sci.,8(1): 445–450.
10. RAJU BB AND KR PRASHANT (2017). Studies on effect of polymer seed coating, nanoparticles and hydro priming on seedling characters of pigeon pea seed. J. Pharmacogn. Phytochem. 6(4): 140-145.
