yield potential of oil palm (elaeis guineensis jacq ... 9 potier.pdf · 27-28/11/2006 isopb phuket...
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![Page 1: Yield potential of oil palm (Elaeis guineensis Jacq ... 9 Potier.pdf · 27-28/11/2006 ISOPB Phuket POTIER et al. p 8 Yield potential of oil palm clones: results observed in the ALT](https://reader033.vdocuments.us/reader033/viewer/2022051600/5ab18b8e7f8b9a7e1d8c9c70/html5/thumbnails/1.jpg)
27-28/11/2006 ISOPB Phuket POTIER et al. p 1
Yield potential of oil palm (Elaeis guineensis Jacq.) clones: preliminary results observed in the Aek Loba Timur genetic block in Indonesia
POTIER F., NOUY B., FLORI A., JACQUEMARD J.C., EDYANA SURYANA H. and DURAND-
GASSELIN T.
Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
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27-28/11/2006 ISOPB Phuket POTIER et al. p 2
The experimental site:
Aek Loba Timur genetic block in Aek Loba estate (SOCFINDO) in North Sumatra(deep loamy sand, low water deficit and
good sunlight)
Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
AL-GP 05: 23 clones + 2 crossesplanted in 11/1995AL-GP 19: 11 clones + 1 crossplanted in 06/1998AL-GP 22: 13 clones + 4 crosses planted in 11/1998
42 different clones
The trials:
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
The 3 trials are planted in statistical designs.
The trials:
All the clones were selected from17 Deli x La Mé crosses from thesecond reciprocal recurrent selectioncycle planted at Aek Kwasan (SOCFINDO, North Sumatra).
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Traits measured:
• FFB production together with BN and ABW
• bunch composition analysis on a sample of bearing palms, multiplying the end result by 0.855 to approach the industrial extraction rate
• oil yield based on 135 palms for an effective density of 143 palms per ha
• exclusion of any palms with mantled fruit
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Cross and ortet selection method:
2 stages
1) Selection of crosses, based on oil production in t/ha/year (6-9 or 7-10 years)
good estimation at Aek Kwasan thanks to lattice designs and reference to the control LM2TxDA10D
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Difference compared to the control(crosses as a % of control)
F/B% M/F% O/M% OER6.3 7.2 3.1 17.5
BNi FFBi ABWi Oili6.9 0.1 -6.6 17.6
BNm FFBm ABWi Oilm-0.3 -2.0 -0.6 14.1
Selection of crosses
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Cross and ortet selection method:
2 stages
1) Selection of crosses, based on oil production in t/ha/year (6-9 or 7-10 years)
2) Selection of within-cross ortets, trying to limit the role of the environment in individual data calculations by using numerous bunch analyses, smoothing and meticulous field visits taking into account the effects of competition between palms
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Difference compared to the crosses(ortets as a % of crosses)
F/B% M/F% O/M% OER5.6 -0.6 1.0 5.9
BNi FFBi ABWi Oili1.7 6.3 2.8 11.0
BNm FFBm ABWi Oilm5.7 7.9 1.4 13.2
Selection of within-cross ortets
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Difference compared to the control(ortets as a % of control)
F/B% M/F% O/M% OER12.2 6.5 4.2 24.4
BNi FFBi ABWi Oili9.5 6.4 -2.5 29.7
BNm FFBm ABWi Oilm5.4 5.7 0.6 29.6
Selection of within-cross ortets
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Ortet/clone comparison methods:
• ortet/clones correlations and regression for observations over the 3-7 year period
• comparison of the values of ortets and clones to the same frame of reference - i.e. LM2T x DA10D - for the 3-7 year period
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Sets of observations:
• bunch analyses (F/B %, M/F %, O/M %, OER %)
• bunch production on immature palms (BNi, ABWi, FFBi)
• bunch production on mature palms (BNm, ABWm, FFBm)
42 ortet/clone pairs
Ortet/clone comparison methods:
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
trait ortet/clone correlation
h2
F/B %
M/F %
O/M %
OER %
0.47** 0.79**
0.72**
0.48**
0.51
0.79
0.57
0.43
It is possible to carry out effective selectionbased on the extraction rate components
Ortet/clone correlations and regression (1)
Bunch analyses
Ortet/clone comparison methods:
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Ortet/clone correlations and regression (2)
FFB production (immature period)trait ortet/clone
correlationh2
BNi
FFBi
ABWi
Oili
0.48**
0.48**
0.59**
0.31*
0.36
0.40
0.59
0.24
Ortet/clone comparison methods:
Correlations are all significant in the immature period and are accompanied by heritability values ranging from 0.24 (oil production) to 0.59 (average bunch weight).
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Ortet/clone comparison methods:Ortet/clone correlations and regression (3)
FFB production (mature period)trait ortet/clone
correlationh2
BNm
FFBm
ABWm
Oilm
NS
0.32*
0.42**
NS
0.08
0.24
0.36
0.15
Correlations disappear for bunch number and oil production but remain significant for FFB and mainly for ABW
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Comparative clone/ortet values
Difference compared to the control(clones as a % of control)
F/B% M/F% O/M% OER8.0 6.2 1.9 16.8
BNi FFBi ABWi Oili-7.0 -5.9 0.4 10.5
BNm FFBm ABWm Oilm-5.5 -4.4 0.2 7.3
Ortet/clone comparison methods:
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Comparative clone/ortet values
Difference compared to the crosses(clones as a % of crosses)
F/B% M/F% O/M% OER1.5 -0.9 -1.2 -0.5
BNi FFBi ABWi Oili-13.3 -8.3 5.1 -7.8
BNm FFBm ABWm Oilm-6.0 -4.5 0.9 -8.6
Ortet/clone comparison methods:
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
General comments(1):
Heritabilities
• good level for bunch quality
• for bunch and oil yields: values of the 6 – 7 period lower than those of the 3 – 5 period
• ABW more heritable than bunch number
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
General comments(2):
Genetic progress
• mean progress expected for yield < 6% with 20<i<40CV=20 %h2=0.15
-might be not detected with conventional designs-could have been masked by environmental effects
• best clones on the same level as best crosses(high-yielding clones can reach 9 t oil/ha)
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
General comments(3):
Somaclonal variation
• are the clone performances related to possible abnormalities induced by in vitro culture?
• epigenetic abnormality?
• differences in methylation polymorphisms of nuclear DNA?
• need for further investigation
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
General comments(4):
Consequences for breeding
• it is possible to get high-yielding clones
• phenotypic selection within crosses is rather inefficient
• selection must be based on the choice of exceptional crosses
• need for evaluation phase in trials
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Yield potential of oil palm clones: results observed in the ALT genetic block in Indonesia
Conclusion:
• it is possible to get high-yielding clonesbut value of the progress achieved is negligible
• necessary to plant methodological trialscomparing clones and crosses
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Conclusion: