Maximum Yield Australia/New Zealand May/June 2019 | Page 30

max FACTS How the Dutch Innovated Greenhouse Tomato Growing Arguably the most popular greenhouse-growing product, tomatoes and greenhouse practises of today owe a big nod to the Dutch, going back to the mid 1990s. The Dutch pioneered indoor tomato-growing techniques that led to varieties that travel well and are extremely flavourful. Growers in the Netherlands pioneered the pelleting system that coats seeds in a protective layer, making it easier for mechanical seed dispersal. Additionally, methods of priming (triggering then stopping the germination process) tomato seeds came from the Dutch, who were among the first greenhouse growers to incorporate geothermal energy to save costs. Horticultural tech companies such as Priva developed automated, climate- control, and water-dosing systems that synchronise variables such as air vents, CO 2  dosage, heating, cooling, and ventilation. Interestingly, nearly 80 per cent of the world’s tomato seeds come from the Netherlands. — qz.com Why Time Slows Down Under Influence of Cannabis The feeling of time slowing down for consumers after using cannabis has interested researchers for years, but there are no clear-cut answers as to why this happens. Studies have shown that a brain network called the thalamo-cortico-striatal circuit is key to how we perceive time. This collection of brain areas also contains many cannabinoid receptors. So, when THC from cannabis floods the brain, it could disrupt the normal functioning of these receptors, resulting in distorted time perception. Research done by Deepak D’Souza, a professor of psychiatry at Yale, showed that these time-distorting effects were particularly strong amongst those who rarely consumed, with medium and high doses leading to temporal overestimation and all doses resulting in temporal underproduction. Meanwhile, frequent tokers (two to three times a week or more) experienced no significant repercussions on their time perception regardless of the amount of THC in their systems. — leafly.com Record-Holding Watermelon Equivalent of Two Beer Kegs With summer right around the corner, plenty of people will be enjoying watermelon under clear blue sunny skies. Chances are, when you head to the market, you won’t see a watermelon as big as that grown by Chris Kent. Kent, who is from Sevierville, TN., holds the record for producing the world’s largest watermelon which weighed in at a hefty 350.5 pounds in Oct. 2013. According to the Watermelon Board, the average watermelon weights 20 pounds, so Kent’s giant equalled 17.5 melons. Kent grew the massive melon from seeds he bred himself and cultivated his melon outdoors, but watermelon can be grown indoors and will do well in just about any hydroponic system as long as there’s room to support the big vines. Perlite makes a good watermelon-growing medium, however, growers may prefer something heavier, like clay pellets, pea gravel, or silica stones. — Maximum Yield Staff 28 Maximum Yield