Transcript Slideshow presented May 2012 in conference by Ulfstand Wennström et al

Reduced background pollination?
Ulfstand Wennström
Curt Almqvist
Bengt Andersson
Why bother about BP?
10 %
25 %
40% of the pollen comes
from outside the orchard
25 %
20
12.5
20 %%
Our
idea
15 dec 2009
15 dec 2009
15 dec 2009
15 dec 2009
28 apr 2010
07 maj 2010
05 maj 2010
Sex tunnels, three treatments + control
Treatments
Control
Tunnel
Tunnel + fan
Tunnel + suplimental pollination (SP)
Antal
2
2
2
2
Control
Tunnel
Tunnel +
fan
Tunnel +
supplemental pollen (SP)
Same clonal mix in all treatments
Clone
AC1006
AC1075
AC2047
AC2064
AC3015
AC3033
AC3040
AC3056
AC3065
AC4221
X4203
Y2004
Y2005
Y3001
Dedicated to:
Run Peng Wei
Johan Kroon
Katarina Lindgren
Seppo Ruotsalainen
Torbjörn Lestander
Takeshi Torimaru
Curt Almqvist
Zheng Yongqi
Adalsteinn Sigurgeirsson
Shen Xi-Huan
Yousry El-Kassaby
Eleonor White
Kyu-Suk Kang
Bengt Andersson
Clone
Y3012
Y3014
Y4016
Y4103
Y4507
Y4508
Z2081
Z3007
Z3009
Z3029
Z4003
Z4019
Z4022
Z4032
Dedicated to:
Jan-Erik Nilsson
Tore Ericsson
Finnvid Prescher
Urban Eriksson
Gösta Eriksson
Nebi Bilir
Ola Rosvall
Anders Fries
Xiao-Ru Wang
Yoshinari Morugushi
Lennart Ackzell
Mohan Varghese
Darius Danusevicius
Ulfstand Wennström
40
350
Flower development in seedorchard Västerhus 2011
35
300
Pollen catch 400 m NW
Pollen catch mid orchard 1
Pollen catch mid orchard 2
30
Pollen catch 400 m SE
250
Pollen shed control
Pollen / mm2 day
25
Receptive ♀-flowers tunnels
200
Receptive ♀-flowers control
Tunnels ♀-max
20
Control ♀-max
150
T-sum Järved (nearby)
15
100
10
50
5
0
0
07/maj
12/maj
17/maj
22/maj
27/maj
01/jun
06/jun
11/jun
16/jun
21/jun
26/jun
Temperature sum
Pollen shed tunnels
Temperature-sum (+5°C)
500
450
Control
400
Tunnel
350
300
250
200
150
One week
100
50
0
1-May
11-May
21-May
31-May
10-Jun
20-Jun
30-Jun
Cones and seeds,
effect of treatment
Treatment
Cones/graft Seeds/graft Seeds/cone
1000-sw
Control
39
A
595
A
12,7
A
7,57
C
Tunnel
29
A
255
A
6,8
B
8,51
A
Tunnel + fan
51
A
501
A
8,6
B
8,26
AB
Tunnel + SP
54
A
685
A
10,7
A
8,05
BC
Cones and seeds,
effect of clone
Clone
AC1075
AC3015
AC3040
AC3056
AC3065
Y3012
Y3014
Z2081
Y4103
Z4032
Cones/ Filled seeds/ Filled seeds/
Seeds/
tree
tree (g)
tree (no)
Seedweight cone
11
1,3
170
8,35
5,9
20
1,3
154
8,89
4,5
27
1,4
214
7,40
6,5
53
5,4
721
7,65
12,9
90
5,6
869
6,52
10,7
21
0,6
80
7,46
3,4
33
2,0
234
8,90
7,2
59
6,3
845
7,90
16,0
3
1,3
175
8,33
14,9
113
15,7
1628
9,56
14,8
Pollen (g/graft),
effect of treatment
Treatment
Pollen
Control
51,5
A
Tunnel
64,3
A
Tunnel + fan
64,6
A
Tunnel + SP
58,8
A
Do the tunnels work?
Preliminary results (480 seeds, 4 clones)
anlyzed with microsatellites (SSRs)
Control
Tunnel
Tunnel + fan
Background
pollination
23.8
2.2
0
Other than
tunnel clones
34.3
2.1
0
Tunnel + SP
4.5
0*
Treatment
* 48% of the fathers originated from the SP
Data from Xiau-Ru Wang, Torimaru Takeshi and Jinlong Zhang at EMG Umeå University
Reduced background pollination,
does it work?
Yes!