Science Performance Task : The Rainbow Eucalyptus


Rainbow Eucalyptus

(also known as Eucalyptus delugta)

image This is one of the plants we would usually see in the high school building, this is near the Saint Francis Xavier Statue and the MPC. Do you know, This tree is the ONLY type of eucalyptus naturally found in the Northern Hemisphere. This tree is believed to be originated from the Philippines, thus being called Mindanao gum or rainbow gum as it was mostly grown in Mindanao. It is typically used for pulpwood which is turned into paper which originates from the bark of the tree, thus able to make high quality paper. Also in Costa Rica, farmer uses the shade of the tree to effectively grow their coffee and this leads to good quality coffee there. The wood is also used to make cabinets, furnitures, etc. and in Hawaii, it is used to construct boats. Also this tree serves as a main source of food for the koala and uses it for his home until he goes to another tree where he can find his mate and can lead to more koalas for the species to grow and contribute to our ecosystem. These trees need a tropical but wet environment in order to grow such as those of the Philippines, the temperature best suited would be from 23-31 degrees Celsius for the tree to grow properly. Also needed for best and proper growth is a deep, moderately fertile, well-drained soil with adequate moisture. For this to happen, this plant has a proper parts of a tree for transport such as roots for absorption of water, minerals and sunlight, a long stem or branch for the transport of water and minerals in the plant through the xylem and phloem also there are leaves within the branches for photosynthesis to happen. Usually this plant can be propagated with the use of seeds or branch cuttings, this plant has a 50-60% germination rate if with proper conditions met, seedlings should be kept in trays in fine and sterile sand and kept in the shade but can gradually increase until 50% sunlight for the first few days. Once they grow around 2-3 leaf pair, they can be put in planting tubes with sunlight. When they grow 25-30 inches, they can be planted into the soil.




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