article · Molecules
Magnetic seed enhancement offers a viable method to boost the germination and seedling vigour of seeds stored under suboptimal conditions, though its utility in oilseeds has remained uncertain. Experimental trials tested whether magnetic stimulation could enhance sunflower germination, growth, and yield. Seeds received direct magnetic field treatments at 50, 100, and 150 millitesla for durations of 5, 10, and 15 minutes to find the most effective exposure. In secondary evaluations, untreated seeds were compared against seeds primed with water, 3 percent moringa leaf extract, magnetically treated water, and moringa leaf extract dissolved in magnetically treated water. Following germination, emergence, and biochemical screenings, chosen treatments progressed to field trials. Direct exposure to 100 millitesla for 10 minutes, as well as priming with moringa leaf extract dissolved in magnetically treated water, significantly boosted seedling emergence, crop growth rate, and final sunflower yield.
Low seed vigour and suboptimal storage conditions can severely limit crop establishment and reduce agricultural output. Demonstrating that physical magnetic stimulation and botanical priming can improve sunflower emergence and harvest yield provides potential non-chemical options for boosting oilseed productivity under challenging conditions.
The findings are relevant to seed treatment companies, agricultural input manufacturers, and commercial oilseed growers seeking yield-improving pre-sowing interventions. Having been tested in field conditions alongside laboratory assays, the magnetic and priming protocols represent applied research with direct potential for translation into commercial seed-processing operations.
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Magnetic seed enhancement has been practicing as a promising tool to improve germination and seedling growth of low vigor seeds stored under suboptimal conditions, but there is still ambiguity regarding the prospects for magnetism in oilseeds. Present study elucidates the potential of magnetic seed stimulation to improve sunflower germination, growth and yield. Germination and emergence tests were performed to optimize the strength of the magnetic field to sunflower seed enhancement. The seeds were directly exposed to magnetic field strengths of 50, 100 and 150 millitesla (mT) for 5, 10 and 15 min (min) and then standard germination tests were performed. Secondly, the emergence potential of untreated seeds was compared with seed exposed to hydropriming, priming with 3% moringa leaf extract (MLE), priming with magnetically treated water (MTW) for 10 min and priming with 3% MLE solution prepared in magnetically treated water (MTW + MLE). Germination, emergence, seedling growth and seed biochemical properties were used to select the best treatment for field evaluation. The results of the study revealed that magnetic seed treatment with 100 mT for 10 min and seed priming with 3% MLE solution in magnetically treated water (MTW + MLE) significantly improved emergence, crop growth rate and sunflower yield.
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DOI: 10.3390/molecules26072022
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