Studies on efficacy of static magnetic field pre-exposures to improve germination and early seedling growth parameters in chilli (Capsicum annuum L. cv. Moreh Morok)

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Research Articles | Published:

E-ISSN: 2229-4473.
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DOI: 10.1007/s42535-026-01662-2
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Keywords: Magneto priming, Chilli, Germination, Pigments, Amylase activity, Root viability


Abstract

Chilli (Capsicum annum L.) cv. Moreh Morok, is extensively grown in the North Eastern states of India and is known as King Chilli for its extreme hot taste. However, low seed germination potential due to hard seed coat and delayed germination are major hinderance for its cultivation. Pre-sowing seed treatment can effectively enhance germination and crop establishment. The present study aimed to investigate the effect of pre-exposure of chilli seeds to static magnetic field (SMF) of different strengths ranging from 50 to 180 millitesla (mT) for 1 h. Results revealed that SMF exposures had improved germination percentage, speed and seedling growth as compared to untreated seeds. However, highest germination and seedling root length, shoot length, fresh weight, dry weight and leaf area were recorded under SMF treatment @ 100–105 mT. SMF pre-exposures were also found to stimulate physiological processes that translated into better germination and robust seedling growth in chilli through favourable changes such as better water uptake, membrane integrity, leaf pigments content, α-amylase activity and root viability. Finally, it would be concluded that this simple, low-cost seed priming method can ensure better crop stands and thereby higher yields of this crop, especially under weather variability.

Magneto priming, Chilli, Germination, Pigments, Amylase activity, Root viability


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Author Information

Department of Seed Science and Technology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, India