What Stops tree Seeds From Germinating?
There are a number of important reasons a seed refuses to germinate under artificial conditions. Two major causes for unsuccessful tree seed germination are hard seed coats and dormant seed embryos. Both conditions are species specific and every tree species has to subject the seeds to unique conditions to assure germination. Treating the seed properly is necessary before germination occurs and a seedling can be assured.
Seed scarification and stratification are the most common methods of seed treatment and they will increase the chances of seed or nut germination.
Scarification and Stratification
Scarification - The hard protective coating on some tree seed is nature's way of protecting the seed.
Pull the seeds from a cone and rub them gently between your fingers to remove the wings.
Soak the seeds in water for 24 hours. After soaking, put them on a folded paper towel and allow them to dry for an additional 24 hours. Put the seeds in a zip-top plastic bag that has three times as much space for air as that occupied by the seeds. Don't include any dirt, fertilizer or other supporting medium in the bag. Seal the bag and put it in the refrigerator for at least four weeks prior to planting. Fill small containers that are at least 6 inches deep to the top with coarse potting soil. Use a pencil to make depressions that are 2 to 3 inches deep. Drop two seeds into each hole and cover them with potting soil. Water the soil enough to keep it moist but not soggy and add fertilizer that has a little or no nitrogen. Keep the trays in an indoor environment in which the temperature remains at 70 degrees Fahrenheit during the day, for four to six weeks, then thin seedlings to one per container. If you have any questions contact us through The Dirty Gardener at http://ift.tt/20TUtYg
Submitted March 01, 2016 at 10:26AM by DirtyGardenersunite http://ift.tt/1T5l1qq trees
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