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Definitions (136)

1.

5   6

Conelet


An immature cone (strobilus) in the conifers.
Source: esf.edu

2.

5   4

Candidate tree


A tree that has been tentatively selected for inclusion in a breeding program, but has not yet been measured or compared with surrounding trees. (See plus tree and elite tree.)
Source: esf.edu

3.

2   3

Seed zone


An area within which seed can be collected from any natural stand and planted in any new site without fear of mis-adaptation.
Source: esf.edu

4.

2   1

Seed orchard


A seed orchard established from seedlings (as opposed to grafts). Usually seedling seed orchards are established with multiple-tree plots so that selection can take place first among families and then [..]
Source: esf.edu

5.

2   1

Seed orchard


A seed orchard established from vegetatively propagated trees, usually grafts. Usually clonal seed orchards are established with single-tree plots with different ramets of each clone located as far ap [..]
Source: esf.edu

6.

2   1

Seed orchard


A plantation established for the production of tree seed.
Source: esf.edu

7.

2   3

Forest genetics


The study of heredity in forest trees.
Source: esf.edu

8.

1   1

Seedlot


A designation of a group of seeds with some factor in common, i.e., year of collection, stand or seed orchard, individual "+" trees, point of origin in a provenance test, a half- or [..]
Source: esf.edu

9.

1   1

Provenance test


A test comparing trees grown from seed or cuttings collected in many parts of a species range. (See seed source.)
Source: esf.edu

10.

1   1

Germplasm conservation


, in situ - Maintaining the genetic variability of a population in approximately the same geographic and ecological conditions under which it evolved. (This should always be the first choice.)
Source: esf.edu


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