Västerhus – information and some results

Last edit 080808

Seed orchard Tested Available Normal order statistics of i:th ranking (= BV)    

No Name clones clones 1 2 3 4 5 6 7

412 Domsjöänget 52 42 2.180 1.776 1.542 1.370 1.232 1.114 1.009

        AC1006 Y4507 AC2064 Z3009 AC3040 AC3033 AC4221

410 Robertsfors 12 10 1.539 1.001 0.656        

        Y3014 AC3065          

18 Brån 34 27 1.998 1.563 1.306 1.115 0.957 0.820 0.699

        AC3056 Y3001 AC1075 AC2047      

403 Nedansjö 40 32 2.070 1.647 1.400 1.217 1.067 0.938 0.824

        Y4016 Z2081 Z4003 X4203 Z4019    

411 Domsjöänget 50 40 2.161 1.753 1.517 1.344 1.203 1.083 0.977

        Y2005 Y3012 Y2004 Z4022 Z3029 Z4032 AC3015

426 Holm 20 16 1.766 1.285 0.990 0.763 0.570    

        Z3007 Y4508 Y4103        

Selection of clones from six progeny-tests (old orchards)

Clone IDBreeding

ValuePercentage

Clone ID

Breeding Value

Percentage

AC1006 2.2 7 Z4022 1.3 3

Y2005 2.2 8 AC1075 1.3 2

Y4016 2.1 7 Y4508 1.3 3

AC3056 2.0 9 AC3040 1.2 3

Y4507 1.8 6 X4203 1.2 2

Z3007 1.8 6 Z3029 1.2 2

Y3012 1.8 6 AC2047 1.1 1

Z2081 1.6 6 AC3033 1.1 1

Y3001 1.6 4 Z4032 1.1 1

AC2064 1.5 5 Z4019 1.1 2

Y3014 1.5 5 AC4221 1.0 2

Y2004 1.5 2 AC3065 1.0 1

Z4003 1.4 3 Y4103 1.0 1

Z3009 1.4 2 AC3015 1.0 1

     

                                                                                                        

     

Recommended area for using the seed orchard

Västerhus (T10)

Latitude for plus tree origin 63°30'Category: TestedLocation:Latitude 63,8 NElevation 15 mEstablished 1991

     

Origin of clones at Västerhus

0

100

200

300

400

500

600

61 62 63 64 65 66

Latitude

Alt

itu

de

Range of origins = v = 3 latitudes, but considering pollen, range of halfsibfamilies =v/2 = 1.5 latitude

Plust tree origins

Seed orchard location

Relative performance over plantation sites compared to an optimal seed orchard (=100%)

Map. Västerhus + = missing Z3007 = clone ID Parcells (plots) and in plots X for column and Y for rowThis is actually the only way to find the identity of a particular clone in the orchard!

Z3007-82-1-3

Västerhus (Anders F 07-10-10)

Air picture of Västerhus

Västerhus spring 2006. Czech visitors. Photo: Morogushi

Västerhus spring 2006

25 46.0

= 2006

0

10

20

30

40

50

60

0 5 10 15 20 25 30

Plantageålder

Kg

po

llen

/ha

T1 Alvik(-90)

T2 Alvik(-89)

T5 Pålb.(-92)

T6 Pålb.(-93)

T10 Väst.(-91)

T12 Gnarp(-88)

T12 Gnarp(-94)

Mod.pl.Sävar

Mod.pl.Drögsnäs 2006

Anders and me selected study trees and harvested needles

• Criteria – 3 ramets per clone• Possible to study pollen spreading from rare

clones• Somewhat spread over the orchard• Needles in Xiao-Ru’s lab

Cone collection

Simple Breeding without Breeding Cycle

Seed orchard

Forest

Group merit selection

Västerhus

• We are anyway genotyping the seed orchard and its offspring

• There are a few mature (30 year) crosses among seed orchard trees (in old seed orchards, Domsjöänget). Johan Kroon will help us to find some such trees and we will check the possibilities to make phenotypic selection followed by parent determination in a situation where we know the parents. Not many trees. A few days in the summer 2008 to look at the material.

Mature seed orchard Domsjöänget, 25 kms from Västerhus. These trees were crossed in the orchard and the progeny planted in field trial. The field trials were evaluated and the

best clones placed in Västerhus. Some of the crosses are between Västerhus clones and exist in a 30 year old progeny-test where we collected needles June 2008. When we can evaluate the chance that we can identify the

parents

• Trees at the progeny trial Kvarntorp with crosses at Domsjöänget at needle collection June 2008

• Needles are collected by cutting branches down with a pole with a saw (at the centre of the picture)

Photo Takeshi Torimaru 0806

Plantation with Västerhus seeds

Plantation with Västerhus seeds

Harvesting needles from plantation with Västerhus

Half sib forestry• I and Anders have applied to Kempe in coop with the chief silviculturist at

Holmen and the seed manager of SSP (Lagan, Finnvid). We did not get money.

• We applied in Bo Rydin but they suggested no spring meeting• We applied föreningen but they did not want to initiate something without

the full board.• We now have an application at Bo Rydin and will send one to föreningen• Thus we wait till 2009 with the seeds. One advtage is that the pollen

production dropped 2007, but hopefully will raise again 2008.• Harvesting 25% of area of Västerhus clonewise• The number of seeds will be counted for each clone, thus the female fertility.

This can be combined with our measurements of male fertility• Follow these harvests through seeds, nursery to the field.• Ten halfsib families are chosen for trials• 10 field plantations around 20 hectars each with the 10 lots with half sibs

and 3 (as comparison) with mixtures• We may revise BWB to be applied to half sib forests, when we know the

mother

Null alleles assumed to be

partly present

Contamination (%) 51,63 (+ 3,95)

Selfing (%) 1,30 (+ 0,62)

Outcrossing within seed orchad (%)

47,07 (+ 4,05)

Pollen contamination and self-fertilization, within Västerhus in 9 loci

Standard error in parentheses

Contamination is high like in most similar studies!!

Remains a very big and unsolved problem

Selfing is low compared to similar earlier studies, non problematic level

AC

3056

Y20

05A

C10

06Y

4016

Y30

12Z

3007

Y45

07Z

2081

Y30

14A

C20

64Y

3001

AC

3040

Z40

22Z

4003

Y45

08Z

3029

Z30

09Y

2004

AC

1075

X42

03Z

4019

AC

2047

AC

4221

AC

3033

AC

3015

AC

3065

Y41

03Z

4032

0

5

10

15

20

25N

umbe

r of

see

dsExpected (black bars) and observed (grey bars) contributions

of each clone as a pollen donor when assuming null alleles in 9 loci

Expected value = total no. of seeds with single candidate

No. of ramets representing each clone

Total no. of ramets in the seed orchard

Observed

Expected