As a medical laboratory scientist you'll need to be precise, observant and have extensive scientific and medical knowledge. Reviewing education requirements and salary information is a good way to determine if this is the right career for you.
Growth Rate. Dwarf apple trees only grow to be between 5 and 7 feet tall, and can take between 2 and 4 years to produce viable fruit. Semi-dwarf trees take between 3 and 6 years to reach maturity and produce viable fruit.These trees can reach over 20 feet tall.Standard apple trees will not produce fruit until they are between 6 and 10 years of age.tandard apple trees can grow to be 30 feet or taller in height, and take much longer to mature than the smaller varieties of dwarf and semi-dwarf. This long wait time, combined with the height of the tree, make standard apple trees impractical for the purposes of fruit production.
NA/AbleStock.com/Getty Images. While the Bramley apple tree has been known to live for 200 years, the average lifespan of the apple tree is closer to 100 years, with between 30 and 40 of those years being fruitful. Crabapple trees live between 30 and 50 years.