Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Using phenomics and genomics to unlock landrace and wild relative diversity for crop improvement
Vosman, B. ; Pelgrom, K.T.B. ; Sharma, G. ; Voorrips, R.E. ; Broekgaarden, C. ; Pritchard, J. ; May, S. ; Adobor, S. ; Castellanos-Uribe, M. ; Kaauwen, M.P.W. van; Finkers, H.J. ; Janssen, B. ; Workum, W. van; Ford-Lloyd, B. - \ 2016
In: Enhancing crop genepool use: capturing wild relative and landrace diversity for crop improvement / Maxted, N., Dulloo, M.E., Ford-Lloyd, B.V., CABI - ISBN 9781780646138 - p. 1 - 9.
This chapter discusses some of the activities and achievements of the Plant Genetic Resources (PGR) Secure project, which aims to: (i) identify host plant resistance to the cabbage whitefly (Aleyrodes proletella) and cabbage aphid (Brevicoryne brassicae) via a germplasm screen where both are specialist phloem-feeding insects that feed only on members of the Brassicaceae family; (ii) elucidate the resistance mechanism; and (iii) provide tools to breeders that will facilitate resistance breeding. It is shown that the PGR Secure project has delivered valuable information on the extent of whitefly and aphid resistance in landrace accessions of Brassica oleracea var. capitata, as well as in wild relatives of B. oleracea. The whitefly resistance present in Brassica villosa, B. incana and B. montana is expressed both in 6- and 12-week-old plants, which indicates that this form of resistance is probably different from that already present in B. oleracea. These sources can be used in breeding resistant varieties. By combining novel phenomics, genomics and transcriptomics technologies, resistance breeding can be speeded up significantly. The developed and publicly available 90 k Affymetrix Axiom Brassica array can play an important role in this. The single nucleotide polymorphism markers linked to the resistance quantitative trait loci (QTLs) will facilitate an efficient introgression of the QTLs into high-yielding varieties.
Phenomics and genomics tools for facilitating brassica crop improvement
Vosman, B.J. ; Pelgrom, K.T.B. ; Sharma, G. ; Voorrips, R.E. ; Broekgaarden, C. ; Pritchard, J. ; May, S. ; Adobor, S. ; Castellanos-Uribe, M. ; Kaauwen, M.P.W. van; Janssen, B. ; Workum, W. van; Ford-Lloyd, B. - \ 2015
Crop Wild Relative 10 (2015). - ISSN 1742-3627 - p. 12 - 14.
Long-term impact of a gliricidia-maize intercropping system on carbon sequestration in southern Malawi
Makumba, W. ; Akinnifesi, F.K. ; Janssen, B. ; Oenema, O. - \ 2007
Agriculture, Ecosystems and Environment 118 (2007)39539. - ISSN 0167-8809 - p. 237 - 243.
soil properties - agroforestry systems - organic-matter - crop residue - central ohio - tillage - dynamics - nitrogen - yields - management
Tree/crop systems under agroforestry practice are capable of sequestering carbon (C) in the standing biomass and soil. Although studies have been conducted to understand soil organic C increases in some agroforestry technologies, little is known about C sequestered in simultaneous tree/crop intercropping systems. The main objective of this study was to determine the effect of agroforestry practice on C sequestration and CO2-C efflux in a gliricidia-maize intercropping system. The experiment was conducted at an experimental site located at the Makoka Agricultural Research Station, in Malawi. The studies involved two field plots, 7-year (MZ21) and 10-year (MZ12), two production systems (sole-maize and gliricidia-maize simultaneous intercropping systems). A 7-year-old grass fallow (Grass-F) was also included. Gliricidia prunings were incorporated at each time of tree pruning in the gliricidia-maize. The amount of organic C recycled varied from 0.8 to 4.8 Mg C ha¿1 in gliricidia-maize and from 0.4 to 1.0 Mg C ha¿1 in sole-maize. In sole-maize, net decreases of soil carbon of 6 Mg C ha¿1 at MZ12 and 7 Mg C ha¿1 at MZ21 in the topsoil (0¿20 cm) relative to the initial soil C were observed. After 10 years of continuous application of tree prunings C was sequestered in the topsoil (0¿20 cm) in gliricidia-maize was 1.6 times more than in sole-maize. A total of 123¿149 Mg C ha¿1 were sequestered in the soil (0¿200 cm depth), through root turnover and pruning application in the gliricidia-maize system. Carbon dioxide evolution varied from 10 to 28 kg ha¿1 day¿1 in sole-maize and 23 to 83 kg ha¿1 day¿1 in gliricidia-maize. We concluded that gliricidia-maize intercropping system could sequester more C in the soil than sole-maize.
Het IPCC-rapport en de betekenis voor Nederland
Dorland, R. van; Janssen, B. ; Brink, H. van den; Drijfhout, S. ; Haak, H. ; Haarsma, R. ; Hazelegger, W. ; Hurk, B. van den; Katsman, C. ; Kattenberg, A. ; Komen, G. ; Lenderink, G. ; Oldenborgh, G.J. van; Reijmerink, M. ; Siegmund, P. ; Weber, N. ; Hove, B. van; Veraart, J.A. ; Verhagen, J. ; Berkhout, F. ; Bouwer, L. ; Eickhout, B. ; Haanstra, H. ; Kabat, P. ; Leemans, R. ; Tak, M. ; Meyer, L. ; Vuuren, D.P. van; Seedrechts, A. ; Bosch, P. ; Daniëls, B. ; Ybema, R. ; Drunen, M. van; Meijer, N. - \ 2007
De Bilt / Wageningen : PCCC - Platform Communication on Climate Change - 52
klimaatverandering - inventarisaties - wetenschappelijk onderzoek - climatic change - inventories - scientific research
Het IPCC brengt verspreid over 2007 in vier delen het vierde klimaatrapport uit (Fourth Assessment Report - AR4). Het geeft daarmee de nieuwste inzichten op het gebied van klimaatverandering in de wereld. Aan het AR4 hebben honderden gerenommeerde klimaatonderzoekers uit de hele wereld meegewerkt, waaronder verschillende uit Nederland. De hoofdrapporten met de wetenschappelijke onderbouwing komen dit jaar stapsgewijs beschikbaar. Eind november volgt het zogeheten ‘synthesis report’ van het IPCC. In dit rapport zullen de bevindingen en conclusies van de drie werkgroeprapporten in samenhang beschouwd worden om zo een integraal wetenschappelijk beeld te geven van ons huidige begrip van klimaatverandering. Deze stand van zaken rond klimaatverandering en Nederland wordt gegeven door: MNP, KNMI, VU Amsterdam, Universiteit Utrecht, NWO, Wageningen UR en ECN
De mogelijke rol van het 'bacteriemengsel' Cobio Lisier in het stikstofbeheer van melkveehouderijbedrijven. Een speculatieve verhandeling ten behoeve van het 'Cobio Lisier project' van de provincie Gelderland
Boer, J.A. de; Bouwknegt, K. ; Janssen, B. ; Keulen, H. van - \ 2005
In: Eindrapportage 'De rol van Cobio Lisier in het optimaliseren van het stikstofmanagement op rundveehouderijbedrijven'. Een project in Milieuzorggebeid Neede-Borculo DLV Rundvee Advies - p. 30 - 34.
'De rol van Cobio Lisier in het optimaliseren van het stikstofmanagement op rundveehouderijbedrijven'
Boer, J.A. de; Bouwknegt, K. ; Janssen, B. ; Keulen, H. van - \ 2004
Deventer : DLV Rundvee Advies bv - 6 p.
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