Maximum Yield USA April/May 2019 | Page 24

max FACTS Three of the Most Profitable Hydroponic Crops A hydroponic grower could do well cultivating some of the most profitable hydroponic crops. While cannabis is the most profitable crop to grow, many will be interested to know ginseng is right behind marijuana. In 2018, ginseng fetched between $500-600 per pound. For centuries the root has been used for various health purposes. More recently it’s been used in energy drinks. Some will be surprised to hear bay leaves are also another profitable hydroponic crop. Last year a pound of bay leaves was worth $30 per pound. They’re used to add taste and aroma to sauces and dishes. The herb comes in several varieties including California bay leaf, Indonesian bay leaf, and Mexican bay leaf. Also making the list is tarragon, which was worth $16 a pound in 2018. Tarragon nicely complements meats like fish and chicken and is predominantly used in French cuisine. However, it also has and can be used to induce sleep, increase appetite, improve cardiovascular health, and even for pain relief. — igrow.news How Tomato Plants Fight Bacterial Attacks New research shows how tomato plants emit an aroma that wards off attacks from bacteria. A finding published in Frontiers in Plant Science shows tomatoes produce a compound called hexenyl butyrate (HB), which has significant potential for protecting crops from infections and drought. “The application of this compound in fields is a new natural strategy for improving crop yields. Treatments will protect crops from biotic and abiotic stress,” says Purificación Lisón, researcher at the Institute for Plant Molecular and Cellular Biology. The compound closes the stomata, which is the key to protecting plants. Another advantage is that it is easy to use. As a volatile compound, it can be applied by spraying onto plants or by using diffuser devices. Researchers have proven the treatment of the tomato plants with HB causes the closing of the stomata, protecting them from infection by the Pseudomonas syringae bacteria, increasing their resistance to it. — phys.org Greenhouse Grower Reducing Plastic Packaging Canadian lettuce producer Inspired Greens has reduced its plastic use by packaging its products in a recyclable sleeve rather than the traditional plastic domed clamshell. Greenhouse lettuce is usually sold completely encased in plastic, but Inspired Greens is changing all that and helping the environment in the process. “Retailers across North America are thrilled with our open sleeve concept for living lettuce,” says David Karwacki, CEO of The Star Group of Companies, which built the Inspired Greens greenhouses. “The beautiful presentation brings the produce department alive, and the massive reduction in plastic has been a home run.” Inspired Greens has produced more than 15 million heads and, according to their calculations, effectively transformed two million pounds of hard plastic to less than 100,000 pounds of recyclable sleeves. “This is just one item in the produce department, but everything helps. Inspired Greens has reduced plastic by 20 times,” says Karwacki. — freshplaza.com 24 Maximum Yield