Maximum Yield USA 2015 November | Page 150

COLD PLASMA TREATMENT “Plasma treatment of seeds occurs in a vacuum chamber, where SUPER-CHARGED air is introduced to plasma.” 148 Maximum Yield USA  |  November 2015 PLASMA POTENTIAL How does faster germination help? Ecologically speaking, treated seeds would be able to out-compete weeds. As anyone who has a home garden can attest to, one of the biggest annoyances is the constant pulling of weeds. Weeds rob our crops of solar energy, water and nutrients from the soil. If our crops germinated faster in the soil and got a jump start over the weeds, they would be the clear victors. Faster germination times could translate into many benefits for farmers and home growers alike from a harvesting standpoint. Crops could be ready sooner and on our tables earlier. This could allow for more successional plantings and more harvests per year. A 2005 study on plasma-treated tomato seeds found the treated tomatoes had a 28% higher germination rate, an 8% higher total survivability rate and an 11% higher number of plants surviving to the transplant stage than the non-treated control seeds. The treated plants continued to outperform the control plants as development continued—yields were 22-26% higher for the treated seeds and the weights per tomato were 9-16% higher in the treated versus non-treated plants (Meiqiang et al., 2005). Research has repeatedly shown a correlation between plants receiving a cold plasma treatment during their seed phase and increased yields per plant, including increased mass of total yield per plant, mass per fruit, size of fruit and quality of fruit. Besides the obvious potential benefits of better germination, growth and yield, the increased water absorption of plasma-treated seeds could mean less irrigation water is needed. This has obvious benefits to all, but especially to farmers and growers living in arid parts of the world, or even those living in the suburbs facing water restrictions during the summer. This increased hydrophilicity can also increase the storage time of seeds, allowing for a greater amount of time between the treatment and the sowing of the seeds.