It is very often used on its own, and in fact quite frequently produces reasonable trees.

However, further research eventually produced several trees effectively immune to disease which were released after 1989.

Although the process requires up to several months, the new rooted tree produced is itself ready to bear fruit within two years.

Bottom-up methods are more difficult to implement, but likely to produce better trees in general.

This algorithm usually produces small trees, but it does not always produce the smallest possible tree.

There are two competing principles for producing trees, constituency and dependency.

It also produces unrooted trees unless additional information is incorporated.

Neighbor-joining is a form of star decomposition, and can very quickly produce reasonable trees.

This same genetic variation can also produce trees that are aesthetically more pleasing than others.

By 1964 there were 69 fruit producing trees.