Legume Research
Web of Science
  • Year: 2026
  • Volume: 49
  • Issue: 8

Evaluating the Impact of Peanut Shell Carbon Dots Priming on Seed Longevity and Viability in Blackgram [Vigna mungo (L.) Hepper]

  • Author:
  • Kanthavel Abinaya1, Karuppannan Raja1,*, Kalimuthu Raja2, Ponnuraj Sathya Moorthy3, Gurusamy Jagadeeshkumar1, Alagarswamy Senthil4, Kalichamy Chandrakumar5
  • Total Page Count: 7
  • Page Number: 1331 to 1337

1Department of Seed Science and Technology, Seed Centre, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India

2Centre for Agricultural Nanotechnology, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India

3Department of Basic Engineering and Applied Sciences, Agricultural Engineering College and Research Institute, Kumulur, Tiruchirappalli-621 712, Tamil Nadu, India

4Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India

5Department of Plant Molecular Biology and Bioinformatics, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India

*Corresponding Author: Karuppannan Raja, Department of Seed Science and Technology, Seed Centre, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India, Email: kraja_sst@tnau.ac.in

Abstract

Using good quality seeds during sowing greatly determines the productivity of crops in agricultural production. Hence, adopting advanced and eco-friendly storage practices to maintain viability for a longer period becomes an hour’s need. One such is a nanopriming which uses nanomaterials as a seed invigourant to maintain the viability of seeds during storage. Hence, a study was taken up to evaluate the bio-efficacy of peanut shell carbon dots (PNS-CDs) a type of carbon nanomaterial in maintaining the seed quality of blackgram during storage.

Blackgram seeds were stored under ambient conditions in cloth and polythene bags after imposing the following treatments viz., control (untreated), hydropriming and PNS-CDs priming @ 200 ppm. Samples were drawn at monthly intervals to analyze their physiological and biochemical parameters thereby the effect of PNS-CDs priming on blackgram seed storability can be known.

The results of the experiment revealed that irrespective of the containers, seeds primed with PNS-CDs @ 200 ppm has performed better and maintained its minimum standards up to 7 months. The results of higher germination (78%), speed of germination (9.7), vigour index (1979) and dehydrogenase activity (2.28 OD value/min) have proved the enhanced physiological activity by PNS-CDs priming. In addition, the antioxidant defense mechanism offered by PNS-CDs was also confirmed with maximum activity of catalase (0.77 μg H2O2 reduced g-1 min-1), peroxidase (0.68 OD value/10 min) and superoxide dismutase (4.1 units mg-1 of protein). Thus, it was found that PNS-CDs priming can be given as a pre-storage treatment to maintain the storability of blackgram seeds sustainably.

Keywords

Antioxidant enzymes, Black gram, Carbon dots, Storage