Question

explain plus tree selection​

Answer 1

Explanation:

A plus tree is selected either by comparing phenotypic values of a candidate tree with those of base population (comparison methods) or evaluating a candidate tree on the basis of its score values (individual tree methods). The comparison methods include comparison tree method, base value method and regression method.

Answer 2

Answer:

Plus tree selection is the first step to improve production and quality in forestry. An individual-based method is widely used to select plus trees for timber production, timber form, freedom from diseases and insects. ... However, individual trees are different. Only five of 7 trees are the same in both methods.23-Apr-2014