Journal ArticleDOI
A model of canopy development in winter wheat
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A computer simulation model of canopy development in a crop of winter wheat is described, with the principal features of the simulation of the emergence, growth and senescence of individual leaves and the production of tiller groups during a defined phenological period.Abstract:
A computer simulation model of canopy development in a crop of winter wheat is described. The principal features of the model are the simulation of the emergence, growth and senescence of individual leaves and the production of tiller groups (cohorts) during a defined phenological period, with their survival depending on cohort age and shoot population density. Comparison is made between the model output and early- and late-sown crops from three seasons. The behaviour of the model in response to changes in leaf senescence and tiller production is discussed for crops sown in 1978.read more
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Temperatures and the growth and development of wheat: a review
John R. Porter,Megan Gawith +1 more
TL;DR: In this paper, the effects of climate variability and temperature extremes on wheat yields in the context of extreme event effects on crop processes for climatic impacts studies are discussed. But, the authors focus on the effect of temperature on rates of growth and development.
Journal ArticleDOI
A test of the computer simulation model ARCWHEAT1 on wheat crops grown in New Zealand
TL;DR: The results of a more rigorous validation in which predictions from the model were compared with measurements on crops grown at three locations in New Zealand, during three seasons, under conditions of optimum water and nutrients as discussed by the authors.
Journal ArticleDOI
A winter wheat crop simulation model without water or nutrient limitations
TL;DR: A whole crop computer simulation model of winter wheat has been written in FORTRAN and used to simulate the growth of September and October-sown crops of Hustler wheat at Rothamsted for the years 1978-9, 1979-80 and 1980-1.
Journal ArticleDOI
Combining agricultural crop models and satellite observations: from field to regional scales
TL;DR: In this paper, a review of how satellite observations are used to feed or tune crop models and improve their capability to predict crop yields in a region is given, together with various strategies for introducing short wavelength radiometric information into specific crop models.
Journal ArticleDOI
Resource capture and use in intercropping: solar radiation
Brian Keating,P.S. Carberry +1 more
TL;DR: In this paper, a framework is presented on radiation interception and use in sole crops and elements of this framework are subsequently extended to intercropping systems to achieve improved productivity per unit incident radiation could be achieved by the adoption of an intercrop system that either increases the interception of solar radiation and/or has greater radiation-use efficiency.
References
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Journal ArticleDOI
Radiation absorption, growth and yield of cereals
J. N. Gallagher,P. V. Biscoe +1 more
TL;DR: In this paper, the authors measured absorbed radiation and leaf area indices of wheat and barley crops and showed that throughout most of growth the fraction of absorbed solar radiation could be described by a simple exponential equation.
Journal ArticleDOI
A winter wheat crop simulation model without water or nutrient limitations
TL;DR: A whole crop computer simulation model of winter wheat has been written in FORTRAN and used to simulate the growth of September and October-sown crops of Hustler wheat at Rothamsted for the years 1978-9, 1979-80 and 1980-1.
Journal ArticleDOI
Interference in dune annuals: spatial pattern and neighbourhood effects
Richard N. Mack,John L. Harper +1 more
TL;DR: Interference among four autumn-germinating annuals native to the stabilized dunes near Aberffraw, Anglesey, North Wales, was examined at the individual plant level in monocultures, in all combinations of two species in mixture, and in a mixture of all four species.
Journal ArticleDOI
Simulation of plant growth and crop production.
TL;DR: In this paper, the authors introduce dynamical simulatie in het ontwikkelen van computer programma's voor modellen van de plantengroei.
Journal ArticleDOI
Water relations of winter wheat: 1. Growth of the root system
TL;DR: In this article, the root root length and root dry weight with depth and time were investigated for a commercially grown crop of Maris Huntsman winter wheat and root growth was reported.