Search Results - "Lommen, M J J"

A prospective study of pre-trauma risk factors for post-traumatic stress disorder and depression by Wild, J, Smith, K V, Thompson, E, Béar, F, Lommen, M J J, Ehlers, A

“…It is unclear which potentially modifiable risk factors best predict post-trauma psychiatric disorders. We aimed to identify pre-trauma risk factors for…”
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Longitudinal associations between hair cortisol, PTSD symptoms, and sleep disturbances in a sample of firefighters with duty-related trauma exposure by Sopp, M.R., Michael, T., Lass-Hennemann, J., Haim-Nachum, S., Lommen, M.J.J.

“…Several studies have found evidence of altered cortisol levels in patients with posttraumatic stress disorder (PTSD). Based on these findings, it is assumed…”
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Trade-Offs of Flowering and Maturity Synchronisation for Pineapple Quality by Fassinou Hotegni, V Nicodème, Lommen, Willemien J M, Agbossou, Euloge K, Struik, Paul C

“…In the pineapple sector of Benin, poor fruit quality prevents pineapple producers to enter the European market. We investigated effects of common cultural…”
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How Age of Transplants from In Vitro Derived Potato Plantlets Affects Crop Growth and Seed Tuber Yield After Field Transplanting by Lommen, W. J. M

“…In vitro produced plantlets are used in potato seed systems for production of minitubers under protected conditions or for production of transplants to be…”
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Effect of Planting Density and K2O:N Ratio on the Yield, External Quality, and Traders' Perceived Shelf Life of Pineapple Fruits in Benin by Djido, Ulrich, Fassinou Hotegni, Nicodeme V., Lommen, Willemien J. M., Hounhouigan, Joseph D., Achigan-Dako, Enoch G., Struik, Paul C.

“…Quality, shelf life, and yield of a pineapple fruit are the important attributes for the producers and customers in the pineapple value chain of Benin, whereas…”
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Hilling of Transplanted Seedlings from Novel Hybrid True Potato Seeds Does Not Enhance Tuber Yield but Can Affect Tuber Size Distribution by van Dijk, Luuk C. M., Lommen, Willemien J. M., de Vries, Michiel E., Kacheyo, Olivia C., Struik, Paul C.

“…A novel cropping system for potato was tested for two consecutive years under normal Dutch agronomic conditions. Seedlings from two experimental genotypes of…”
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Least-Cost Seed Potato Production in Ethiopia by Tufa, Adane Hirpa, Meuwissen, Miranda P. M, Lommen, Willemien J. M, Tsegaye, Admasu, Struik, Paul C, Lansink, Alfons G. J. M. Oude

“…Improved potato varieties can increase potato yields of smallholders, and thus contribute to food security improvement in Ethiopia. However, the uptake of…”
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Aversive response to uncertainty as a mediator for the effect of a mindfulness intervention on symptoms of anxiety by Papenfuss, I., Lommen, M.J.J., Huisman, M., Ostafin, B.D.

“…Intolerance of uncertainty plays a central role in anxiety and research suggests that it's an important treatment target. Investigating response to uncertainty…”
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Potato Yield and Yield Components as Affected by Positive Selection During Several Generations of Seed Multiplication in Southwestern Uganda by Priegnitz, Uta, Lommen, Willemien J. M., van der Vlugt, René A. A., Struik, Paul C.

“…Potato ( Solanum tuberosum L.) is an important crop in Uganda but production is low. There is not a well-functioning official seed system and farmers use…”
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Analysis of Seed Potato Systems in Ethiopia by Hirpa, A, Meuwissen, M.P.M, Tesfaye, A, Lommen, W.J.M, Oude Lansink, A.G.J.M, Tsegaye, A, Struik, P.C

“…This study aimed to analyze the seed potato systems in Ethiopia, identify constraints and prioritize improvement options, combining desk research, rapid…”
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Canon of Potato Science: 27. Hydroponics by Lommen, W. J. M

“…Issue Title: The Canon of Potato Science…”
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How Planting Density Affects Number and Yield of Potato Minitubers in a Commercial Glasshouse Production System by van der Veeken, A. J. H, Lommen, W. J. M

“…Commercial potato minituber production systems aim at high tuber numbers per plant. This study investigated by which mechanisms planting density (25.0, 62.5…”
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Farmers’ Opinion on Seed Potato Management Attributes in Ethiopia: A Conjoint Analysis by Hirpa, Adane, Meuwissen, Miranda P.M, Lans, Ivo A. ver der, Lommen, Willemien J.M, Lansink, Alfons G.J.M. Oude, Tsegaye, Admasu, Struik, Paul C

“…A low adoption of recommended seed potato (Solanum tuberosum L.) technologies in Ethiopia could be due to a lack of alternative seed potato production methods…”
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Effects of Age of In Vitro-Derived Potato Plantlets on Early Above- and Below-Ground Development After Planting in Different Cultivars by Lommen, W. J. M.

“…In vitro-propagated potato plantlets are commonly used in potato seed tuber production. Four experiments were carried out to identify how the duration of the…”
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Environmental Conditions After Planting Affect the Expression of Differences in Tuber Formation of In Vitro-Derived Potato Plantlets from Different Ages and Cultivars by Lommen, W. J. M.

“…To identify if and how the age of in vitro potato plantlets at planting affects the later tuber formation, an extensive pot experiment was performed under…”
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Artemisinin and sesquiterpene precursors in dead and green leaves of Artemisia annua L. crops by Lommen, Willemien J M, Elzinga, Sytze, Verstappen, Francel W A, Bouwmeester, Harro J

“…This paper analyses the accumulation and concentrations of the antimalarial artemisinin in green and dead leaves of Artemisia annua crops in two field…”
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A Farm Typology for Adoption of Innovations in Potato Production in Southwestern Uganda by Priegnitz, Uta, Lommen, Willemien J. M., Onakuse, Stephen, Struik, Paul C.

“…In Uganda, low productivity of potato might be associated with poor and diverse adoption of innovative crop management practices. This paper aims to identify…”
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Bottlenecks and Opportunities for Quality Improvement in Fresh Pineapple Supply Chains in Benin by Fassinou Hotegni, V. Nicodème, Lommen, Willemien J. M, van der Vorst, Jack G. A. J, Agbossou, Euloge K, Struik, Paul C

“…This study mapped and diagnosed the fresh pineapple supply chains in Benin to identify bottlenecks in pineapple quality improvement for different markets. A…”
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Selective pruning in pineapple plants as means to reduce heterogeneity in fruit quality by Fassinou Hotegni, V Nicodème, Lommen, Willemien J M, Agbossou, Euloge K, Struik, Paul C

“…Heterogeneity in fruit quality (size and taste) is a major problem in pineapple production chains. The possibilities were investigated of reducing the…”
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Transplanting Hybrid Potato Seedlings at Increased Densities Enhances Tuber Yield and Shifts Tuber-Size Distributions by van Dijk, Luuk C. M., de Vries, Michiel E., Lommen, Willemien J. M., Struik, Paul C.

“…To contribute to the development of a novel cropping system for potato grown from greenhouse-derived seedlings from hybrid true potato seeds, planting density…”
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