Maximum Yield USA 2012 March | Page 126

A Plant’s Life: From Seed to Seed Producer the seed within. Whatever shape the begin feeding the seedlings small seed happens to be, its purpose is the amount of ‘grow’ nutrients. same—to sow life. Clones are exact genetic replicas of Seeds germinate at different rates. the mother plants they were taken Some are quick while others are from. They should be taken using a slow. There are some tricks you can sterile cutting tool, after which the use to ensure that your seeds have cut end should be dipped in rootthe best chance for success, ing hormone and then placed though—most fruit, vegetable, into the growing medium to herb, salad green and other root. After this step you can "Seedlings require a photoperiod seeds that might be grown infollow the same protocol you of 18 hours of light followed by six doors will sprout fastest under used for seedlings to ensure hours of darkness." certain specific conditions. For the best rooting success rate. instance, seeds will germinate Once seedlings or clones and sprout most successfully have established roots they when the air temperature is can then be transplanted into between 70 and 85°F. The root zone not yet have an elaborate root structure larger containers to begin their next temperature should also be kept five so they can easily dry out, but a humidstage of growth. degrees warmer than the air temperaity dome can help keep in the essential Vegetative Growth ture, which can be accomplished with moisture. Fluorescent light bulbs are The next phase of plant development is a heating mat placed beneath the tray ideal for seedlings, which do not need a the vegetative growth phase, where plants containing your seedlings. Seedlings also lot of light to thrive. Seedlings require are more mature and generally require do best when their environment is kept a photoperiod of 18 hours of light folmore intense levels of light. Switching at a humidity level of around 90 to 95 lowed by six hours of darkness. Once to a 6,500 Kelvin HID bulb should do per cent. Seedlings are delicate and do there are some visible roots you can the trick, as it will tend to promote leafy growth while encouraging the plant to stay squat and bushy. Plants grown indoors will need a photoperiod of 18 hours of light followed by six hours of darkness during their vegetative growth phase, which will keep them from flowering prematurely. During the vegetative stage plants also require larger amounts of nutrients to thrive. Using a high quality ‘grow’ nutrient is the best way to ensure a healthy plant with vigorous leafy growth. This stage of plant development is also a good opportunity to transplant your plant into a final, larger container. Root space is one of the factors that determines the amount of fruit that a plant can produce and since transplanting can be very stressful for plants it should be done no later than a couple of weeks before the flowering stage begins. 124 Maximum Yield USA | March 2012