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Detection of potassium deficiency on palm oil tree Elaeis guineensis jacq by laser induced fluorescence. The potassium is the main nutrient element which plays a significant role on oil palm tree Elaeis guineensis jacq production and its resistance to the dry season. The potassium nutrition control of an oil palm tree field is a very important activity and leads to the fertilization policy. The Laser Induced Fluorescence L.
We used the L. Floret and Fruit Tissues. Marked changes are expected when flowers are fertilized and fruit formation is initiated. In this study,differentially expressed proteins between florets day before pollination and day after pollination and fruit 2 weeks after pollination tissues of oil palm Elaeis guineensis Jacq.
Proteins were extracted using phenol-based method and subjected to one-and two-dimensional gel electrophoresis. One-dimensional gel electrophoresis of protein extracts showed a number of protein bands common to both types of floret and fruit tissues. Subsequently,protein extracts resolved by two-dimensional gel electrophoresis in the 4 to 7 pH range revealed about 53 expressed proteins showed significant differences during fertilization and fruit formation.
The differentially expressed proteins were excised and digested with trypsin.
The identified proteins were mainly involved in protein metabolism,biological regulation,stress response and oxidationreduction process.
Further verification of the results are underway but nonetheless this study has provided some valuable information on fertilization and early fruit formation in oil palm. De novo transcriptome analyses of host-fungal interactions in oil palm Elaeis guineensis Jacq. Molecular responses tecnics oil palm to these pathogens are not well known although this information is crucial to strategize effective measures to eradicate BSR.
In order to elucidate the molecular interactions between oil palm and G. Differential gene expression analyses revealed that jasmonate JA and salicylate SA may act in an antagonistic manner in affecting the hormone biosynthesis, signaling, and downstream defense responses in G.
The strengthening of host cell walls and production of pathogenesis-related proteins as well as antifungal secondary metabolites in host plants, are among the important defense mechanisms deployed by oil palm against G. The findings of this analysis have enhanced our understanding on the molecular interactions of G. Pollen viability and its effect on fruit set of oil palm Elaeis guineensis Jacq. Directory of Open Access Journals Sweden.
Full Text Available The research was aimed at studying 1 the decline of pollen viability during storage, and 2 the effect of pollen amount on fruit set of oil palm Elaeis guineensis Jacq. The experiment was conducted at PT. Dami Mas Sejahtera and PT. The first experiment was investigated up to six months storage period in the refrigerator, whereas in the second experiment a randomized complete block design with two factors was used: Result of the second experiment showed that storage of pollen up to two months did not affect percentage of normal fruit, although the percentage of parthenocarpic fruits was decreased.
Root formation of unrooted-plantlets can be induced with aux-in during ex vitro acclimatization period to simplify the proce-dure and to reduce seedling production cost. Experiments were conducted using a completely randomized design to determine the effect of different types of auxin, i.
MSDS – furadan-4f
The plantlets used were derived from somatic embryos of MK oil palm clone. The basal end of the shoots was dipped in auxin solution for 10 minutes before the shoot was cultured in a small plastic pot containing a mixed growing medium. The cultures were then placed inside a closed transparent plastic tunnel cm x cm x 95 cm for 12 weeks. Auxin treatments also increased root quality as indi-cated by more number of primary and secondary roots. The best treatment for inducing roots of oil palm plantlets ex vitro was by dipping the basal end of the plant-lets in 2 mM NAA solution.
The result showed that rooting of oil palm plantlets could be successfully conducted ex vitro that would eliminate sterile rooting stage thus simplify the protocol and reduce seedling production time and cost. The objective of this study was to investigate the diversity of epiphytic fern on the oil palm tree. The number of epiphytic ferns identified in this study was 16 species belongs to six families.
elaeis guineensis jacq: Topics by
Full Text Available Oil palm Elaeis guineensis Jacq is one of Indonesia’s mainstay plantation fifha and plays an important role for the national economy. Oil palm and plantations managed by state-owned enterprises, this is due tcenica the increasing demand for palm oil in the industrial market. With the continuous development of oil palm plantations so that the provision of seeds should be considered because the success of planting in the field and the production of production is highly dependent on the ufradan of the seeds furqdan oil palm plants used.
Efforts that can be done to accelerate the growth of seeds Main Nursery is to provide NPK fertilizer and growth regulatory substances ZPT Hantu that can help the absorption of nutrients and accelerate the growth of vegetative plants.
The aim of this research is to get the interaction of ZPT Hantu concentration and NPK fertilizer dosage which give the best influence to the growth of oil palm seed Elaeis guineensis Jacq in Main-nursery. Thus obtained 9 treatment combinations with 3 replications. Extended spread of root system of oil palm at peat soil has unknown clearly and no study previously.
Amount of roots and extended spread of root system has estimated to influenced by the thickness of peat level, physical and chemical charasteristic of peat. Search for methylation-sensitive amplification polymorphisms associated with the mantled variant phenotype in oil palm Elaeis guineensis Jacq.
The methylation-sensitive amplification polymorphism MSAP technique has been employed on somatic embryo-derived oil palms Elaeis guineensis Jacq. The variant phenotype displays an unstable feminization of male organs in both male and female flowers. Using MSAP, the methylation status of CCGG sites was compared in three normal versus three mantled regenerants sampled in clonal populations obtained through somatic embryogenesis from four genotypically distinct mother palms. Overall, 64 selective primer combinations were used and they have amplified 23 markers exhibiting a differential methylation pattern between the two phenotypes.
Our results indicate that CCGG sites are poorly affected by the considerable decrease in global DNA methylation that has been previously associated with the mantled phenotype. Each of the 23 markers isolated in the present study could discriminate between the two phenotypes only when they were from the same genetic origin.
This result hampers at the moment the direct use of MSAP markers for the early detection of variants, even though valuable information on putative target sequences will be obtained from a further characterization of these polymorphic markers.
Preliminary study on biodiversity of arbuscular mycorrhizal fungi AMF in oil palm Elaeis guineensis Jacq. Oil palm Elaeis guineensis Jacq. In agricultural ecosystems, crop plants could develop a plant-fungal association with arbuscular mycorrhizal fungi AMF. The objectives of this study were to determine the AMF biodiversity and mycorrhizal infection percentage MIP from field-collected soil samples of three oil palm plantations from Nong Khai, Surat Thani, and Chiang Rai provinces of Thailand.
Soil characteristics moisture content, pH, and available phosphorus were also measured. Thirteen AMF species belonging to seven genera were identified from all soil samples, whereas Glomus spp. AMF biodiversity value from Chiang Rai was statistically different from other two provinces p biodiversity. These results confirmed that AMF normally occurs in oil palm plantations, but at different levels of biodiversity possibly due to different environmental factors in each plantation.
Nevertheless, this information could be useful for using AMF in plant growth promoter and pathogen resistance programs in order to achieve the agricultural sustainability, especially in oil palm plantations.
Thirty five species of snakes three boas, one coral, 27 colubrids, one tropidophid, one typhlopid, and two vipers were captured within palmeras. The most common species defined by having 15 or more captures were Atractus univittatus, Bothrops asper, B. Palm plantations permit substantial local population sizes for a fraction Toxicological assessment of crude palm oil Elaeis guineensis Jacq.
During the food frying oils can form toxic decomposition products as total polar compounds TPC, which can determinate oil degradation.
The aim of this study was to assess the toxicity of CPO used in akara frying for 25 hours.
Nonetheless, no cytotoxic, mutagenic or genotoxic activity were detected in CPO used in the curadan akara frying process. El objetivo de este estudio fue evaluar la toxicidad de CPO ficga en tecnicw horas de frituras de akara.
Genomic selection prediction accuracy in a perennial crop: Genomic selection empirically appeared valuable for reciprocal recurrent selection in oil palm as it could account for family effects and Mendelian sampling terms, despite small populations and low marker density.
Genomic selection GS can increase the genetic gain in plants. In perennial crops, this is expected mainly through shortened breeding cycles and increased selection intensity, which requires sufficient GS accuracy in selection candidates, despite often small training populations. Our objective was to obtain the first empirical estimate of GS accuracy in oil palm Elaeis guineensisthe major world oil crop. We used two parental populations involved in conventional reciprocal recurrent selection Deli and Group B with individuals each, genotyped with SSR.
We estimated within-population Dicha accuracies when predicting breeding values of non-progeny-tested individuals for eight yield traits.
We used three methods to sample training sets and five statistical methods to estimate genomic breeding values. The results showed that GS could account for family effects and Mendelian sampling terms in Group B fihca only for family effects in Deli.
Presumably, this difference tscnica populations originated from their contrasting breeding history. The GS accuracy ranged from Training sets optimized with the so-called CDmean criterion gave the highest accuracies, ranging from 0.
The statistical methods did not affect the accuracy. Finally, Group B could be preselected for progeny tests by applying GS to key yield traits, therefore increasing the selection intensity.
Our results should be valuable for breeding programs with small populations, long breeding cycles, or reduced effective size. ED Institutional research plan: Feeding oil palm Elaeis guineensisJacq.
Full Text Available Oil palm fronds OPF, normally available all the year round, may provide a sustainable ruminant feed for livestock industry in tropical regions. A feeding trial was conducted to study the effects of feeding OPF on the rumen protozoal population, rumen fermentation and fatty acid profiles of rumen fluid in goats. Twentyfour five-month-old Kacang crossbred male goats were individually housed and fed for d with concentrate diets supplemented with oil palm Elaeis guineensis Jacq.
The fyradan were adjusted furadxn be isocaloric. The molar proportions of acetate were significantly higher P Incidence, progression and intensity of Bud Rot in Elaeis guineensis Jacq.
The aim of this work was to determine the incidence, progression and disease intensity of BR in E. Incidence and disease progression was determined from data of oil palm enterprises: Disease intensity was determined at Based on projections of accumulative incidence a polynomial equation was built that predicted Magnitude of damages based on incidence, disease progression and infection index indicated the occurrence of a lethal form of BR in San Lorenzo, province of Esmeraldas, Equator.
The oil palm EgPAL1 gene promoter and its regulatory region were functional as a promoter in the heterologous system of Arabidopsis according to the cis-acting elements present in that region.
The promoter was developmentally regulated, vascular tissue specific and responsive to water stress agents. To date, there is no report on the study of PAL from oil palm Elaeis guineensisan economically important oil crop.