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Ministry of Forests |
 |
Seedling Stock Specifications for Commercial Forest Nursery Contracts (Applicable to 2003 Seedling Requests) |
File: 18500-03/2003
GENERAL SPECIFICATIONS
Seedlings- shall be free of any diseases, insects, chlorosis or mechanical damage.
Shoots - shall not have forked tops without a clearly dominant leader, ie. the leader shall have dominance of at least 2.5 cm;
- shall not be forked from the base.
Buds - in those species that form terminal buds, the terminal buds must be visible and viable.
Roots - seedlings with sparse or deformed root systems shall be culled out;
- seedlings shall have a sufficient amount of roots to make an extractable plug and to be in balance with the foliage;
- root dry weight targets of no less than 500-600 mg (313B) and 700-800 mg (415B) are recommended as a guide for indicating plug cohesion and extractability.
Stocktypes: Containers:
| PSB | Plug Styroblock | 211A | 240 cavities per block |
| PCT | Plug Copper Treated | 313A | 198 cavities |
| PAP | Plug Air Pruned | 313B | 160 cavities |
| PBR | Plug / Bareroot Transplant | 415B, 410, 412B | 112 cavities |
| PPT | Plug to Plug Transplant | 412A, 415D | 77 cavities |
| BBR | Bareroot | 515A, 512A | 60 cavities |
| BRL | Bareroot Large | 615A | 45 cavities |
| CRC | Rooted Cutting | 615B | 28 cavities |
Last Revision: February 6, 2003
| Species |
Stock Type |
Height (cm) Cull Target Maximum (2) |
R.C.D. (mm) Cull Target |
||||||
| Alder (Dg, Dr), | PSB410 |
13 |
20 |
-- |
2.4 |
3.2 |
|||
| Alder, Sitka (Alnucri), | PSB415B |
15 |
23 |
-- |
2.6 |
3.4 |
|||
| Aspen, Trembling (At) | PSB412A |
15 |
23 |
-- |
2.7 |
3.6 |
|||
| Birch (Ep) | PSB415D |
20 |
30 |
-- |
2.8 |
3.7 |
|||
| PSB515A |
23 |
34 |
-- |
3.3 |
4.2 |
||||
| PSB615A |
25 |
40 |
-- |
4.0 |
5.5 |
||||
| Cedar, Western Red (Cw) | PSB313B |
14 |
22 |
30 |
2.0 |
2.4 |
|||
| PSB410 |
16 |
25 |
35 |
2.2 |
2.8 |
||||
| PSB415B |
18 |
29 |
40 |
2.4 |
3.2 |
||||
| PSB412A |
18 |
30 |
42 |
2.5 |
3.4 |
||||
| PSB415D |
20 |
33 |
46 |
2.7 |
3.9 |
||||
| PSB512A |
20 |
35 |
50 |
2.8 |
4.0 |
||||
| PSB515A |
20 |
35 |
50 |
2.9 |
4.2 |
||||
| PSB615A/615B |
30 |
45 |
60 |
3.2 |
4.5 |
||||
| Cedar, Yellow (Yc) | PSB/CRC313B |
12 |
21 |
30 |
2.0 |
2.5 |
|||
| PSB/CRC410 |
13 |
22 |
32 |
2.2 |
2.8 |
||||
| PSB/CRC415B |
17 |
26 |
35 |
2.4 |
3.2 |
||||
| PSB/CRC412A |
17 |
26 |
35 |
2.5 |
3.3 |
||||
| PSB/CRC415D |
20 |
30 |
40 |
2.6 |
3.5 |
||||
| PSB/CRC512A |
20 |
32 |
44 |
2.8 |
3.7 |
||||
| PSB/CRC615A |
30 |
40 |
50 |
3.5 |
4.0 |
||||
| Douglas-fir, Coast (Fdc) | PSB313B |
12 |
19 |
26 |
2.4 |
3.0 |
|||
| PSB410 |
16 |
25 |
34 |
2.6 |
3.2 |
||||
| PSB415B |
18 |
28 |
38 |
2.8 |
3.3 |
||||
| PSB412A |
18 |
30 |
42 |
3.0 |
3.7 |
||||
| PSB415D |
20 |
35 |
50 |
3.2 |
4.2 |
||||
| PSB512A |
20 |
35 |
50 |
3.3 |
4.4 |
||||
| PSB515A |
25 |
40 |
55 |
3.4 |
4.6 |
||||
| PSB615A |
30 |
45 |
60 |
3.5 |
4.8 |
||||
| Douglas-fir, Interior (Fdi) | PSB/PCT313B |
12 |
18 |
25 |
2.3 |
3.0 |
|||
| PSB/PCT410 |
13 |
20 |
28 |
2.6 |
3.2 |
||||
| PSB/PCT415B |
15 |
22 |
30 |
2.8 |
3.5 |
||||
| PSB/PCT412A |
15 |
24 |
34 |
3.0 |
3.6 |
||||
| PSB/PCT415D |
15 |
27 |
40 |
3.2 |
4.0 |
||||
| PSB/PCT512A |
15 |
27 |
40 |
3.3 |
4.2 |
||||
| PSB/PCT515A |
15 |
28 |
42 |
3.4 |
4.4 |
||||
| Fir, Amabilis (Ba) | PSB313B |
9 |
17 |
25 |
2.2 |
2.7 |
|||
| PSB410 |
10 |
19 |
28 |
2.4 |
2.8 |
||||
| PSB415B |
11 |
20 |
30 |
2.5 |
3.0 |
||||
| PSB412A |
11 |
20 |
30 |
2.7 |
3.2 |
||||
| PSB415D |
13 |
25 |
36 |
3.0 |
3.5 |
||||
| PSB512A |
13 |
26 |
38 |
3.2 |
3.7 |
||||
| Fir, Grand (Bg) | PSB313B |
12 |
20 |
28 |
2.3 |
2.8 |
|||
| Fir, Noble (Bn) | PSB410 |
14 |
23 |
33 |
2.5 |
3.2 |
|||
| PSB415B |
15 |
25 |
35 |
2.7 |
3.4 |
||||
| PSB412A |
16 |
30 |
44 |
3.0 |
3.7 |
||||
| PSB415D |
20 |
33 |
46 |
3.1 |
3.8 |
||||
| PSB615A |
25 |
40 |
55 |
3.7 |
4.4 |
||||
| Fir, Subalpine (Bl) | PSB313B |
7 |
12 |
22 |
2.0 |
2.5 |
|||
| PSB410/415B |
7 |
17 |
27 |
2.3 |
2.8 |
||||
| PSB412A |
8 |
19 |
30 |
2.6 |
3.2 |
||||
| Hemlock, Mountain (Hm) | PSB313B |
12 |
19 |
26 |
2.2 |
2.8 |
|||
| PSB410 |
12 |
20 |
28 |
2.3 |
2.9 |
||||
| PSB415B |
14 |
22 |
30 |
2.5 |
3.0 |
||||
| PSB415D |
16 |
24 |
32 |
2.6 |
3.2 |
||||
| Hemlock, Western (Hw) | PSB313B |
12 |
20 |
28 |
2.2 |
2.8 |
|||
| PSB410 |
12 |
20 |
28 |
2.3 |
2.9 |
||||
| PSB415B |
15 |
25 |
35 |
2.4 |
3.0 |
||||
| PSB412A |
15 |
23 |
31 |
2.5 |
3.1 |
||||
| PSB415D |
18 |
26 |
35 |
2.8 |
3.5 |
||||
| PSB512A |
18 |
26 |
35 |
3.0 |
3.6 |
||||
| Larch, Western (Lw), | PSB313B |
10 |
17 |
24 |
2.2 |
2.8 |
|||
| Larch, Siberian (Ls), | PSB410 |
12 |
20 |
28 |
2.5 |
3.0 |
|||
| Tamarack (Lt) | PSB415B |
14 |
22 |
30 |
2.6 |
3.2 |
|||
| PSB412A |
14 |
23 |
32 |
2.8 |
3.3 |
||||
| PSB415D |
15 |
27 |
40 |
3.0 |
3.5 |
||||
| PSB512A |
15 |
27 |
40 |
3.2 |
3.7 |
||||
| Pine, Lodgepole (Pli) (Plc) * | PSB/PCT211A |
6 |
11 |
16 |
2.2 |
2.5 |
|||
| Pine, Ponderosa (Py) | PSB/PCT313B ** |
6 |
12 |
19 |
2.4 |
2.8 |
|||
| Pine, White (Pw) | PSB/PCT410 |
7 |
13 |
20 |
2.6 |
3.2 |
|||
| PSB/PCT415B |
8 |
14 |
21 |
2.7 |
3.3 |
||||
| PSB/PCT412A |
8 |
15 |
22 |
2.8 |
3.4 |
||||
| PSB/PCT415D |
8 |
15 |
23 |
3.0 |
3.6 |
||||
| PSB/PCT512A |
9 |
16 |
24 |
3.1 |
3.7 |
||||
| PSB/PCT615A |
10 |
18 |
26 |
3.4 |
4.0 |
||||
| Spruce, Sitka and Crosses | PSB313B |
14 |
22 |
30 |
2.2 |
2.6 |
|||
| (Ss, Sxs) | PSB410 |
16 |
25 |
35 |
2.4 |
3.0 |
|||
| PSB415B |
17 |
27 |
37 |
2.6 |
3.2 |
||||
| PSB412A |
17 |
28 |
38 |
2.8 |
3.5 |
||||
| PSB415D |
18 |
29 |
40 |
3.0 |
3.8 |
||||
| PSB512A |
20 |
34 |
48 |
3.3 |
4.3 |
||||
| PSB515A |
22 |
36 |
50 |
3.4 |
4.4 |
||||
| PSB615A/615B |
30 |
45 |
60 |
3.8 |
4.8 |
||||
| Spruce, White/Engelmann | PSB/PCT313B |
11 |
18 |
25 |
2.4 |
3.0 |
|||
| & Crosses (Sx, Se, Sw, Sxw) * | PSB/PCT410 |
12 |
19 |
27 |
2.6 |
3.2 |
|||
| PSB/PCT415B |
13 |
20 |
32 |
2.8 |
3.5 |
||||
| PSB/PCT412A |
13 |
24 |
35 |
3.0 |
3.7 |
||||
| PSB/PCT415D |
14 |
27 |
40 |
3.2 |
4.0 |
||||
| PSB/PCT512A |
14 |
27 |
40 |
3.3 |
4.2 |
||||
| PSB/PCT515A |
16 |
28 |
42 |
3.4 |
4.5 |
||||
| PSB/PCT615A |
20 |
35 |
50 |
3.8 |
4.8 |
||||
Note: (1) These figures are all ABSOLUTE.
(2) If stock is at or above maximum height it may be accepted if it has an R.C.D. equivalent to the target specifications.
| Species | Stock Type |
Height (cm) Cull Target Maximum(2) |
R.C.D. (mm) Cull Target |
||||||
| Cedar, Yellow (Yc) | PSB/CRC415B |
18 |
22 |
35 |
3.5 |
4.5 |
|||
| PSB/CRC615A |
30 |
45 |
60 |
4.0 |
4.8 |
||||
| Fir, Amabilis (Ba) | PSB410 |
12 |
22 |
32 |
3.2 |
4.0 |
|||
| PSB415B |
14 |
25 |
36 |
3.4 |
4.4 |
||||
| PSB412A |
14 |
26 |
38 |
3.5 |
4.5 |
||||
| PSB415D |
16 |
29 |
42 |
3.8 |
4.8 |
||||
| PSB615A |
16 |
30 |
45 |
4.0 |
5.0 |
||||
| Fir, Grand (Bg) | PSB415B |
15 |
27 |
40 |
3.4 |
4.2 |
|||
| Fir, Noble (Bn) | PSB415D |
20 |
35 |
50 |
4.0 |
4.6 |
|||
| PSB615A |
25 |
40 |
55 |
4.2 |
5.0 |
||||
| Fir, Subalpine (Bl) | PSB410 |
8 |
19 |
30 |
3.2 |
4.0 |
|||
| PSB412A |
8 |
19 |
32 |
3.3 |
4.3 |
||||
| PSB415B |
8 |
20 |
32 |
3.4 |
4.5 |
||||
| PSB415D |
10 |
23 |
36 |
3.8 |
5.0 |
||||
| Pine, Lodgepole (Pli) (Plc), | PCT/PSB415B |
12 |
25 |
35 |
3.6 |
4.8 |
|||
| Pine, White (Pw) | PCT/PSB412A |
12 |
25 |
35 |
3.8 |
5.0 |
|||
| PCT/PSB415D |
14 |
25 |
35 |
4.0 |
5.3 |
||||
| Spruce, White/Engelmann | PSB415B |
14 |
27 |
40 |
3.6/4.0** |
4.8/5.0** |
|||
| And Crosses (Sx, Se, Sw, Sxw) | PSB412A |
15 |
29 |
40 |
3.7/4.1** |
4.9/5.3** |
|||
| PSB415D |
16 |
30 |
44 |
4.0/4.4** |
5.3/5.7** |
||||
| PSB512A |
16 |
31 |
46 |
4.1/4.5** |
5.4/5.8** |
||||
| PSB515A |
17 |
32 |
47 |
4.2/4.6** |
5.5/5.9** |
||||
| PSB615A |
20 |
35 |
50 |
4.5/5.0** |
6.0/6.5** |
||||
Note: (1) These figures are all ABSOLUTE.
(2) If stock is at or above maximum height it may be accepted if it has an R.C.D. equivalent to the target specifications.
(3) Please note that if there is a discrepancy between these listings and the Schedule 'A' of the nursery contract,
the Schedule 'A' will be deemed correct.
** Note: The smaller number is the specification applied to stock lifted from June 1 to September 14 of the second year (2+0 SU). The larger number applies to stock lifted after September 14 (2+0 SP). Note that 2+0 spring plant stocktypes are not recommended for spruce species.
| Species | Stock Type |
Height (cm) Cull Target Maximum (2) |
R.C.D. (mm) Cull Target |
|||
| Cedar, Western Red (Cw) |
PPT615A 1+1 * |
30 |
45 |
60 |
3.2 |
4.5 |
| Cedar, Yellow (Yc) |
PPT615A 1+1 * |
30 |
40 |
50 |
3.5 |
4.0 |
| Fir, Grand (Bg) |
PPT615A 1+1 * |
25 |
40 |
55 |
4.2 |
5.0 |
| Spruce, White/Engelmann and |
PPT515A 0.5+0.5 |
16 |
30 |
45 |
3.5 |
4.5 |
| Crosses (Sx, Se, Sw, Sxw) |
PPT615A 1+1/0.5+1.5 |
18 |
36 |
55 |
4.4 |
5.8 |
* Example: Grown in 313B containers for first year, transplanted to 615A for second year.
** First phase in mini-plug containers (eg. 540), transplanted to 515A for second phase.
| Species | Stock Type |
Height (cm) Cull Target Maximum (2) |
R.C.D. (mm) Cull Target |
|||
| Alder (Dr, Dg- -- (a) mesic |
PBR 0.5+0.5 |
25 |
35 |
50 |
3.5 |
7.5 |
| and Alnucri) ---- (b) brush (L) |
PBR 0.5+0.5 |
30 |
50 |
70 |
5.0 |
10.0 |
| Cedar, Western Red (Cw) |
BBR 2+0 |
12 |
18 |
30 |
3.0 |
4.0 |
|
PBR 1+1 |
30 |
45 |
60 |
4.0 |
6.0 |
|
| Cedar, Yellow (Yc) |
PBR 1+1 |
25 |
35 |
50 |
3.5 |
6.0 |
| Douglas-fir, Coastal (Fdc) |
PBR 1+1 |
20 |
30 |
40 |
4.0 |
5.5 |
|
PBR 0.5+0.5 |
15 |
20 |
30 |
3.0 |
4.0 |
|
| ---------------------- (a) mesic |
BBR 2+0 |
20 |
30 |
40 |
3.5 |
5.5 |
| ---------------------- (b) brush (L) |
BBR 2+0 |
35 |
45 |
60 |
4.5 |
6.4 |
|
PBR 1+2 |
40 |
60 |
80 |
7.0 |
12.0 |
|
| Douglas-fir, Interior (Fdi) |
BBR 2+0 PBR 0.5+0.5 |
12 |
15 |
30 |
3.0 |
4.0 |
|
BBR 2+1 PBR 0.5p+1.5 |
15 |
22 |
40 |
4.0 |
5.0 |
|
| Fir, Amabilis (Ba) |
BBR 2+0 |
10 |
16 |
3.0 |
3.5 |
|
|
PBR 0.5+1.5 |
15 |
22 |
- |
4.0 |
5.5 |
|
| Fir, Grand (BG) -(a) mesic |
BBR 2+0 |
15 |
30 |
40 |
3.0 |
5.5 |
| ---------------------- (b) brush (L) |
BBR 2+0 |
25 |
40 |
60 |
3.5 |
6.0 |
| Hemlock, Western (Hw) |
PBR 1+1 |
20 |
40 |
60 |
4.0 |
6.0 |
| Larch, Western (Lw) |
BBR 2+0 |
12 |
15 |
25 |
3.0 |
4.0 |
| Pine, Lodgepole (Pli) |
BBR 1+0 |
6 |
12 |
-- |
2.2 |
2.7 |
|
PBR 0.5p+1.5 |
10 |
17 |
30 |
3.0 |
4.2 |
|
|
BBR 2+0 PBR 1+0.5 |
10 |
15 |
25 |
3.0 |
4.0 |
|
|
PBR 0.5+0.5 |
7 |
15 |
20 |
2.5 |
3.0 |
|
| Pine, Ponderosa (Py) |
BBR 2+0 |
15 |
20 |
3.0 |
4.0 |
|
| Pine, Western White (Pw) |
PBR 1+1 BBR 2+0 |
10 |
20 |
3.0 |
4.0 |
|
| Spruce, Sitka & Crosses (Ss, Sxs) | ||||||
| -------------------------- (a) mesic | BBR 2+0 |
20 |
30 | 40 | 3.5 | 5.5 |
| -------------------------- (b) brush | BBR 2+0 | 35 | 45 | 60 | 4.5 | 6.4 |
| -------------------------- (a) mesic | PBR 0.5+1.5 | 25 | 35 | 50 | 4.0 | 7.0 |
| -------------------------- (b) brush | PBR 0.5+1.5 | 40 | 60 | 80 | 7.0 | 12.0 |
| Spruce, White/Engelmann and Crosses (Sx, Se, Sw, Sxw) |
PBR 1+1 PBR 0.5p+1.5 |
17 | 27 | 37 | 4.0 | 5.0 |
NOTE:
(1) These figures are all ABSOLUTE.
(2) If stock is at or above the maximum height it may be accepted if it has an R.C.D. equivalent to the target specifications.
(3) Please note that if there is a discrepancy between these listings and the Schedule 'A' of the nursery contract, the Schedule 'A' will be deemed correct.
(4) For other 0.5+0.5 PBR transplants, use container 1+0 stock specifications.
(5) For .5 and 1.5 PBR transplants, use 1+1 stock specifications.
BASE STOCK FOR TRANSPLANTS
|
Height (cm) |
RCD (mm) |
|||||
|
Species |
Age |
Cull |
Target |
Max (ht) |
Cull |
Target |
| All Species |
0.5 |
8 |
15 |
20 |
1.8 |
2.2 |
| • | Nursery Home |
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