References of "Terren, Marieke"
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See detailAnalyse des perspectives de rentabilité de la culture extensive de Jatropha curcas L. dans la zone agroécologique de transition orientale du Sénégal : cas de la communauté rurale de Dialacoto
Terren, Marieke ULg; Cissé, Chérif; Mergeai, Guy ULg

in Cahiers d'Etudes et de Recherches Francophones. Agricultures (2013), 22(6), 568-574

The profitability prospects of the three main modes of extensive cultivation of Jatropha curcas L. in the Rural Community of Dialacoto were studied on 24 farms from 2008 to 2012. In the best tended ... [more ▼]

The profitability prospects of the three main modes of extensive cultivation of Jatropha curcas L. in the Rural Community of Dialacoto were studied on 24 farms from 2008 to 2012. In the best tended peasant plantations aged four or five years the dry seed yield obtained in sole cropping was less than 200 kg/ha. Under these conditions, it is very unlikely that the yield achieved in sole cropping exceeds 800 kg/ha in full production. The average yield per meter of live fences older than fifteen years was 0.9 kg/m. Considering the purchase price of jatropha seeds in 2012 in Senegal (65 F CFA/kg – 0.1 euro/kg), and given the bad productivity and the low precocity of the available planting material, the cultivation of jatropha (as a sole crop or in intercropping) is far less profitable than the main cropping system practiced in the region (groundnut/pearl millet/sorghum/cotton rotation with input application). Any improvement in the economic performance of the production of jatropha seeds requires the selection of varieties that are early, hardy and productive. The establishment of living hedges is for the moment the only installation method that can be recommended to farmers. In addition to providing supplementary income related to seed harvest, hedgerows provide different non-monetary benefits appreciated by farmers: land demarcation, soil protection against wind and water erosion, improved soil water balance and windbreak effect favourable to crop development, crop protection against wandering ruminants, and enclosure for the cattle. [less ▲]

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See detailNear-infrared spectroscopy for analysis of oil content and fatty acid profile in Jatropha curcas L. flour
Terren, Marieke ULg; Lecler, B.; Baeten, V. et al

Poster (2013)

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See detailAttempted cultivation of Jatropha curcas L. in the lower Senegal river valley: story of a failure
Terren, Marieke ULg; Saverys; Jacquet de Haveskercke, Paul et al

in Tropicultura (2012), 30(4), 204-208

With the objective of determining whether it would be possible to sustainably produce Jatropha curcas L. seeds on the marginal land situated close to the Senegal River, a 6-hectare pilot plantation was ... [more ▼]

With the objective of determining whether it would be possible to sustainably produce Jatropha curcas L. seeds on the marginal land situated close to the Senegal River, a 6-hectare pilot plantation was cultivated under drip irrigation between September 2007-November 2011, close to the village of Bokhol (Lat. 16°31’N, Long. 15°23’W). A series of tests were conducted on this plot, in order to identify the best cultivation methods for the area (date, density and method of planting, appropriate type of pruning, fertilisers to be applied, irrigation method, etc.). The average yields obtained at this site, after four years of cultivation (less than 500 kg.ha-1 of dry seed), using the best known production techniques, are significantly lower than anticipated, compared to the available figures for the irrigated cultivation of Jatropha in other parts of the world. The main causes of this failure are the plant’s limited useful vegetation period of six months per year, instead of twelve, and the scale of attacks by a soilborne vascular disease, which destroyed over 60% of the plantation within four years. [less ▲]

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See detailPrincipal disease and Insect pests of Jatropha curcas L. in the lower valley of the Senegal river
Terren, Marieke ULg; Mignon, Jacques ULg; De Clerck, Caroline ULg et al

in Tropicultura (2012), 30(4), 222-229

Jatropha curcas L. seed oil is proven to be toxic to many microorganisms, insects and animals. Despite its toxicity, Jatropha is not pest and disease resistant. The following major pests and diseases ... [more ▼]

Jatropha curcas L. seed oil is proven to be toxic to many microorganisms, insects and animals. Despite its toxicity, Jatropha is not pest and disease resistant. The following major pests and diseases affecting Jatropha in the lower valley of the Senegal river have been identified: the leaf miner Stomphastis thraustica (Meyrick, 1908) (Lepidoptera, Gracillariidae), the leaf and stem miner Pempelia morosalis (Saalmuller, 1880) (Lepidoptera, Pyralidae) and the shield-backed bug Calidea panaethiopica (Kirkaldy, 1909) (Heteroptera, Scutelleridae), which can cause flower and fruit abortion. Damage from these pests was particularly great during the second year after the plantations were set up (2009) and before later receding. Nevertheless, the worst attacks were caused by a vascular disease transmitted through the soil, which killed 65% of the plants in four years. It is mainly characterised by collar and root rot, which causes foliage to yellow and wilt, before the plant eventually dies. These threats should increase if larger areas are planted with Jatropha. Considering the scale of the damage caused by these attacks in Bokhol, the development of an integrated pest management programme adapted to the local context should be considered. [less ▲]

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See detailStudy of agronomic constraints to the dissemination of the cultivation of Jatropha curcas L. in Senegal
Terren, Marieke ULg; Saverys, S.; Jacquet de Haveskercke et al

Poster (2012)

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See detailJatropha curcas in sub-saharian Africa: The big illusion ?
Mergeai, Guy ULg; Terren, Marieke ULg; Jacquet de Haveskercke, P. et al

Conference (2011)

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See detailEtablissement de plantations de Jatropha
Legendre, Bruno; Mergeai, Guy ULg; Terren, Marieke ULg

in Technologies for Human Development (2009)

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See detailLancement d’un programme d’amélioration génétique de Jatropha curcas L. au Sénégal
Terren, Marieke ULg; Saverys, S.; Jacquet de Haverskercke, P et al

Poster (2009)

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See detailDéveloppement des filières Jatropha décentralisées au Sénégal
Terren, Marieke ULg; Saverys, S.; Jacquet de Haverskercke, P et al

Poster (2009)

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See detailPossible Contributions of Jatropha curcas L. to Rural Poverty Alleviation in Senegal: Vision and Facts
Saverys, S.; Toussaint, André ULg; Defrise, L. et al

in Tropicultura (2008), 26(2), 125-126

Detailed reference viewed: 12 (7 ULg)