stock specifications

Ministry
of Forests

Seedling Stock Specifications for Commercial Forest Nursery Contracts (Applicable to 2000 Seedling Requests)

File: 18500-03/2000

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, 410 112 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: Dec 15, 1999

STOCK SPECIFICATIONS - CONTAINER SEEDLINGS - AGE 1+0
Applicable to Ministry of Forests Contacts for 2000 Sowing Year

Species

Height (cm)

R.C.D. (mm)

Cull Target Maximum ⁽²⁾ 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

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

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

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

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

STOCK SPECIFICATIONS - CONTAINER SEEDLINGS - AGE 1+0 Applicable to Ministry of Forests Contacts for 2000 Sowing Year
Species		Height (cm)	R.C.D. (mm)
		Cull	Target	Maximum ⁽²⁾	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
	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
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
	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
	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.

1. If there is a discrepancy between these listings and the Schedule 'A' of the nursery contract, the Schedule 'A' will be deemed correct.
2. * Note: All 1+0 summer plant seedlings (seedlings lifted for immediate planting from June 15 through September 14) will have Root Collar Diameter (RCD) cull and target specifications reduced by 0.2 mm.

** Note: Pli 313B Not Recommended for 1+0 summer plant.

STOCK SPECIFICATIONS - CONTAINER SEEDLINGS - AGE 2+0
Applicable to Ministry of Forests Contacts for 2000 Sowing Year

Species Stock Type
Height (cm)
R.C.D (mm)

Cull Target Maximum⁽²⁾ 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

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) PSB415D
16

30

44

4.0/4.4**

5.3/5.7**

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.

STOCK SPECIFICATIONS - CONTAINER (Plug to Plug) TRANSPLANTS Applicable to Ministry of Forests Contacts for 2000 Sowing Year
Species	Stock Type	Height (cm)			R.C.D. (mm)
		Cull	Target	Maximum⁽²⁾	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.

STOCK SPECIFICATIONS - BAREROOT AND TRANSPLANTS
For Reference Only if Required for 2000 MoF Contracts

Species Stock Type
Height (cm)

R.C.D. (mm)

Cull Target Maximum(2) 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

Species

Height (cm)
RCD (mm)

Age

Cull

Target

Max (ht)

Cull

Target

All Species
0.5

8

15

20

1.8

2.2

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	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

BASE STOCK FOR TRANSPLANTS
Species		Height (cm)			RCD (mm)
	Age	Cull	Target	Max (ht)	Cull	Target
All Species	0.5	8	15	20	1.8	2.2