DISEASE EPIDEMIOLOGY AND GENETIC DIVERSITY OF Fusarium oxysporum f. sp. elaeidis, Cause of Fusarium wilt OF OIL PALM (Elaeis guineensis Jacq.)

Oil palm (Elaeis guineensis Jacq.) is a plantation commodity that has an important role in various aspects of life in Indonesia, especially the domestic economy. This is supported by the increasing demand for world palm oil for food needs (edible oil), industrial (oleochemical), and alternative energy sources based on biodiesel. The development of the palm oil industry requires several efforts to achieve increased national productivity, one of which is the utilization of quality seeds supported by the availability of genetic resources (germplasm) that have a high level of genetic diversity. Efforts that can be made for the development of oil palm in Indonesia is through the characterization of oil palm intoduction from abroad. Considering this, further research on genetic distance analysis of palm oil accession introduced from Cameroon is based on morphological characters to produce parent elders that can produce heterosis properties. Research conducted at Seed Garden of Adolina PTPN IV and laboratory analysis of plant material of Palm Oil Research Center located on Jl. Brigjen Katamso No. 5, Medan, North Sumatera, which lasted from December 2017 to February 2018. Single observations were made on 47 accession palm oil from Cameroon planted on December 2010 and ten trees from PPKS 540 variety for compare. Data analysis used was a description of the plant to know the character of plant morphology as well as genetic distance analysis. Analysis of genetic distance using PCA analysis and cluster analysis. The results obtained are based on the results of PCA (Principal Component Analysis) reduce the observed character into six major components that have eigen value > 1 and able to explain the material diversity tested for 73.8%. Based on the cluster analysis obtained the genetic distance of 47 accessions of palm oil from Cameroon by 57%. It can be concluded that, when the genetic distance between accessions is further away, the larger the genetic variability between the observed characters. If the genetic diversity is wider the greater the chance for successful selection in increasing the desired gene frequency.

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Fusarium spp. associated with bud rot of oil palm (Elaeis guineensis Jacq.) in Ecuador.

The Journal of Agriculture of the University of Puerto Rico ◽

10.46429/jaupr.v97i3-4.2992 ◽

1969 ◽

Vol 97 (3-4) ◽

pp. 135-148

Author(s):

Mayra Ronquillo-Narváez ◽

Consuelo Estévez de Jensen ◽

Gustavo Bernal

Keyword(s):

Fusarium Oxysporum ◽

Oil Palm ◽

Dna Analysis ◽

Elaeis Guineensis ◽

Flag Leaf ◽

Morphological Characteristics ◽

Fusarium Spp ◽

Young Leaves ◽

Elaeis Guineensis Jacq ◽

Rot Disease

Bud rot is considered the most important disease of oil palm (Elaeis guineensis Jacq.) in Panamá, Colombia, Ecuador and Brazil. This disease is characterized by yellowing of young leaves and rot of the flag leaf progressing to the meristematic tissues causing palm death. With the objective of studying bud rot etiology, a survey was conducted during June 2011 in seven different oil palm plantations of the province of Esmeraldas, Ecuador. Sampling was carried out in seven palm plantations and Fusarium spp. were isolated from buds, leaves, meristem tips and roots. Fungal identification was achieved by examination of morphological characteristics and DNA analysis by polymerase chain reaction (PCR). Pathogenicity tests were performed and Koch Postulates were completed with each isolate at the Research Center for Oil Palm in Ecuador. Two-month-old oil palm plants were used for the experiment: CIRAD code 2505 and the hybrids O x G (E. oleifera x E. guineensis), considered susceptible and tolerant cultivars, respectively. The palms were inoculated with 1 ml of 1 x 107 macroconidia per milliliter of Fusarium sp., F. oxysporum and F. solani. Control palms were inoculated with 1 ml of sterile distilled water. After four days of inoculation with F. oxysporum and F. solani, necrotic lesions appeared on the youngest leaves; after twenty-seven days bud rot progressed on the CIRAD code 2504 palms. Fusarium oxysporum and F. solani were re-isolated and identified through cultural characterization and PCR. Fusarium oxysporum and F. solani were found associated with bud rot disease in Ecuador and can be important in the development of the disease.

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Genetic Diversity, Erosion, and Conservation in Oil Palm (Elaeis guineensis Jacq.)

Sustainable Development and Biodiversity - Genetic Diversity and Erosion in Plants ◽

10.1007/978-3-319-25954-3_1 ◽

2015 ◽

pp. 1-33

Author(s):

Claude Bakoumé

Keyword(s):

Genetic Diversity ◽

Oil Palm ◽

Elaeis Guineensis ◽

Elaeis Guineensis Jacq

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Evaluation De La Production De Cinq Genotypes De Palmier A Huile (Elaeis Guinnensis Jacq.) Replantes Sur Des Parcelles A Haute Densite De Fusariose

European Scientific Journal ESJ ◽

10.19044/esj.2017.v13n18p562 ◽

2017 ◽

Vol 13 (18) ◽

pp. 562

Author(s):

Désiré Allou ◽

Kouadio Olivier Kouakou ◽

Diabaté Sekou ◽

Assanvo Simon-Pierre Nguetta

Keyword(s):

Fusarium Wilt ◽

Oil Palm ◽

Plant Material ◽

Elaeis Guineensis ◽

Physiological State ◽

Parental Origin ◽

Tolerant Plant ◽

Palmier À Huile ◽

Elaeis Guineensis Jacq ◽

Serious Disease

Fusarium wilt is the most serious disease of the oil palm (Elaeis guineensis Jacq.) In Africa. The methods of fighting this disease are mainly based on the search for tolerant plant material, so the researchers of CNRA were able to make available to the producers of the genotypes tolerant to the Fusarium wilt. However, two of these supposedly tolerant genotypes, planted on plot D9-3 in Ehania, a highly endemic plot, showed symptoms of vascular Fusarium wilt after 9 years of replanting. The evaluation of production responses in comparison with the physiological states of other genotypes of the same parental origin showed that the LM25373 and LM25635 progenies retained their ability to produce in spite of their doubtful physiological state. The appearance of the external symptoms of FHB did not affect the cycles of production of these so-called diseased progeny.

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