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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Record number 401217
Title Weed seed predation in a phenologically late crop
Author(s) Westerman, P.R.; Luijendijk, C.D.; Wevers, J.D.A.; Werf, W. van der
Source Weed Research 51 (2011)2. - ISSN 0043-1737 - p. 157 - 164.
DOI https://doi.org/10.1111/j.1365-3180.2010.00834.x
Department(s) Crop and Weed Ecology
PE&RC
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) setaria-faberi - abutilon-theophrasti - dynamics - fields - tillage - food
Abstract Seed predation of weed seeds in crops depends on the seasonal overlap between seed availability and the activity period of the predators. Published data show that the activity period of seed predators is directly related to canopy cover. In phenologically early crops, such as cereals, maturation of leaves results in a decreasing cover prior to weed seed shed, resulting in lower seed losses than maximally possible. We hypothesised that there would be better temporal overlap in sugar beet, a phenologically late crop. The pattern of predation of Chenopodium album L. seeds was consistent over fields and years, low in July and August and gradually increasing until harvest in September/November. The patterns of seed production and shed, measured using seed traps, differed among weed species. The proportion of annual seed losses by predators calculated from these measurements ranged from 0.26 to 0.83, depending on the duration of seed exposure on the soil surface. As expected, sugar beet had better temporal overlap between predator activity and weed seed production, which may cause higher seed losses than previously reported for any other annual crop
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