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 64059
Title Morphological analysis of plant density effects on early leaf area growth in maize
Author(s) Bos, H.J.; Vos, J.; Struik, P.C.
Source Netherlands Journal of Agricultural Science 48 (2000)2. - ISSN 0028-2928 - p. 199 - 211.
Department(s) Crop and Weed Ecology
Publication type Refereed Article in a scientific journal
Publication year 2000
Abstract The mechanisms of density-related reduced leaf area per plant in non-tillering maize (Zea mays) were investigated. Maize cv. Luna crops with a wide range of plant densities were grown in the field at Wageningen for two years. Half of the plots were shaded (50% transmittance). Detailed measurements of leaf appearance, leaf size, and dry weights of leaves and other plant organs were made. Data were analysed using standard crop-ecological growth functions. Leaf-appearance rates were lower at higher plant densities and under shade. These effects were not caused by the small differences in canopy temperature observed, but closely associated with reductions in the growth rate per individual plant. Leaf length was higher under shade than with full light; effects of plant density on leaf length were inconsistent over the two years, associated with inconsistent effects on leaf-elongation rate. Leaf-elongation duration was longer at higher plant densities in both experimental years. The crop-ecological analysis showed that plant density affected leaf-area expansion of maize mainly through effects on leaf-appearance rates, and that these effects were closely related to density effects on plant-growth rate per leaf-appearance interval.
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