The Oil Palm

Corley, R. H. V.; Tinker, P. B.

doi:10.1002/9781118953297

Cited by 559 publications

(982 citation statements)

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“…However, the large number of variables in the culture process has meant that different laboratories often obtain different results from superficially similar treatments. Even in the same laboratory, results are not always reproducible, so there remains some uncertainty as to the best procedure (Corley and Tinker, 2003). To date, whole plants have been successfully regenerated from various explants and callus derived from seedlings of the oil palm.…”

Section: Background Of Oil Palm Tissue Culturementioning

confidence: 99%

“…This abnormality is accompanied by parthenocarpic (seedless) fruit set and severe bunch failure. Approximately, 5% of somatic embryo-derived palms show abnormalities in their floral development (Corley et al, 2003;Jaligot et al, 2000;Rival, 2000). The somaclonal variant can exhibit a marked heterogeneity in occurrence and intensity between different clone lines, between palm of the same clone line, and between flowers of the same individual variant palm.…”

Section: Somaclonal Variation In Oil Palm Clonesmentioning

confidence: 99%

“…The oil palm, Elaeis guineensis Jacq, belongs to the Family Arecaceae. It is a perennial monocot and monoecious, that is, male and female flowers occur separately on the same plant, usually in distinct male and female inflorescences (Corley and Tinker, 2003). It is one of the most efficient oil bearing crops in the world with average yield of 4 to 5 tons of crude oil per hectare and up to 7 to 8 tons of crude oil per hectare (Te-Chato and Hilae, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Somaclonal variation associated with oil palm (Elaeis guineensis Jacq.) clonal propagation: A review

Mgbeze¹,

Iserhienrhien²

2014

Afr. J. Biotechnol.

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Somaclonal variation refers to any phenotypic or genotypic modifications that arise from in vitro culture. In the oil palm, it is characterized by fruit mantling and abnormal vegetative growth. Tissue culture remains the only means of micro propagation of oil palm as its biological characteristics do not allow for vegetative propagation by conventional means. The early success of plantlets production inspired many oil palm organizations to explore in vitro propagation technique. Though oil palm tissue culture is already well established, it is still faced with many challenges. Prominent among them is somaclonal variation which was first reported in 1986. They are only detectable when the palms start flowering; that is, after two to three years in the field. It has not been possible to fully eliminate or circumvent floral abnormality in the oil palm. However, the adoption of several measures such as reducing hormone level, avoiding fast growing callus and, reducing culture period, have reduced the problem to manageable levels of < 5%. Possible causes and factors influencing somaclonal variation in the oil palm are discussed.

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Section: Background Of Oil Palm Tissue Culturementioning

confidence: 99%

Section: Somaclonal Variation In Oil Palm Clonesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Somaclonal variation associated with oil palm (Elaeis guineensis Jacq.) clonal propagation: A review

Mgbeze¹,

Iserhienrhien²

2014

Afr. J. Biotechnol.

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“…worldwide (Breure & Soebagjo 1991; Chinchilla et al 1997; Corley & Tinker 2003). The disease has caused considerable losses of young oil palms, but few detailed studies of the pathogenic agent of the disease have been conducted.…”

Section: Introductionmentioning

confidence: 99%

Enhanced virulence of Fusarium species associated with spear rot of oil palm following recovery from osmotic stress

2017

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Fusarium spp., which are common inhabitants of oil palm leaves, are weak pathogens of common spear rot (CSR). We investigated the influence of osmotic stress on the growth, virulence, and activity of cell wall-degrading enzymes of CSR fungi, using potato dextrose agar (PDA) supplemented with KCl or sucrose (hyperosmotic medium). Hyperosmotic stress significantly inhibited mycelial growth, but growth rapidly recovered when mycelia were transferred to control medium. When inoculated into oil palm spear leaflets, Fusarium sp., and F. incarnatum precultured on 1.0 and 1.5 M KCl-hyperosmotic medium induced lesions that were two to four times larger than those in non-stressed cultures, suggesting enhanced virulence of the weak pathogens. Lesion size was not greatly affected in hyperosmotic cultures of moderately virulent F. sacchari. No activity of pectin lyase was detected in liquid cultures of the Fusarium isolates. All isolates except F. incarnatum BT48 secreted polygalacturonase (PG), which was active in both liquid cultures and inoculated leaves. Significantly increased PG activity (5–32-fold) was observed on leaves inoculated with hyperosmotic cultures of Fusarium sp. and F. sacchari. These findings suggest that Fusarium sp., F. incarnatum, and F. sacchari exhibit an adaptive physiological plasticity to hyperosmotic stress that results in enhanced virulence.

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“…In countries such as Malaysia, with small seasonal changes, yields are relatively uniform with annual losses of 12 to 15%. In contrast, in regions with well-defined dry seasons such as Benin, losses can amount to 35 to 40% (Nouy et al, 1999;Corley and Tinker, 2003). However, development in the northern region of the Eastern Amazon has been inhibited by environmental issues, besides the high costs of logistics to provide inputs, which led farmers to consider the possibility of expanding the crop to other areas or regions in the country (Teles et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Expansion of palm oil (Elaeis guineensis Jacq.) in the state of Maranhão and soil water deficit limitations in the Brazilian Amazon

Martorano¹,

Moraes²,

Lisboa³

et al. 2017

Aust J Crop Sci

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Oil palm is considered the crop with the highest oil production per planted area unit. This condition has driven the Brazilian government to create the Sustainable Oil Palm Production Program. Since 2009, the agroenergy production chain has used oil palm as a viable and profitable crop to recover deforested areas in the Amazon. The aim of this study was to assess hydric conditions able to indicate the potential to expand oil palm crops in the state of Maranhão, even in the Legal Amazon. The climate database used (average and extreme temperature in degrees Celsius; rainfall values; relative humidity, and vapour-pressure deficit). Water deficit values were was obtained by comparing the potential evapotranspiration of oil palm (ETc) to actual rainfall (ER). Water balance was calculated based on available water capacity of 125 mm.month -1 . Evapotranspiration was obtained using the methodology according to the climate database available to calculate the evapotranspiration rate in an area planted with oil palm in this study. The water deficit values show no restriction in the soil water replacement between January and June. However, from July to December, the water deficit varies between 200 and 300 mm. The levels showed that, in the areas evaluated, oil palm crops will require irrigation. In this period, yield was estimated at 17 tons ha -1 when the water deficit was considered at 210 mm and 14 tons ha -1 for a deficit of 380 mm. This result reinforces that oil palm production may drop by more than 50% due to water deficits and the crop will greatly impact the economy and the environment if the irrigation strategy is adopted in the areas of Maranhão.

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The Oil Palm

Cited by 559 publications

References 0 publications

Somaclonal variation associated with oil palm (Elaeis guineensis Jacq.) clonal propagation: A review

Somaclonal variation associated with oil palm (Elaeis guineensis Jacq.) clonal propagation: A review

Enhanced virulence of Fusarium species associated with spear rot of oil palm following recovery from osmotic stress

Expansion of palm oil (Elaeis guineensis Jacq.) in the state of Maranhão and soil water deficit limitations in the Brazilian Amazon

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