A mechanistic growth and development model of common ragweed
- 1 November 2001
- journal article
- Published by Cambridge University Press (CUP) in Weed Science
- Vol. 49 (6), 723-731
- https://doi.org/10.1614/0043-1745(2001)049[0723:amgadm]2.0.co;2
Abstract
A mechanistic model was constructed for common ragweed growth and development based on the generic plant model CROPSIM. Adaptations were made to CROPSIM's growth and development subroutines to enable common ragweed growth to be simulated. Data from field studies using a single-source common ragweed grown in monoculture and from the literature were used to parameterize the model. The influences of varying environmental conditions across years, densities, and emergence timing on leaf number, leaf area, leaf weight, height, and biomass accumulation were taken into account by the model. Deviations between simulated and measured values generally fell within a relatively narrow range. Deviations outside this range tended to be associated with common ragweed growth shortly after emergence, particularly during temperature and moisture extremes. Future versions of the CROPSIM model may need to include more detailed algorithms for upper soil surface layer temperature and moisture conditions and improved germination and emergence algorithms to reduce these deviations.Keywords
This publication has 29 references indexed in Scilit:
- Photothermal time describes common ragweed (Ambrosia artemisiifoliaL.) phenological development and growthWeed Science, 1998
- Modelling crop:weed interactions in wheat with ALMANACWeed Research, 1997
- Influence of barnyardgrass (Echinochloa crus-galli) time of emergence and density on corn (Zea mays)Weed Science, 1997
- Decision Rules for Postemergence Control of Pigweed (Amaranthusspp.) in Soybean (Glycine max)Weed Science, 1996
- Influence of Common Ragweed (Ambrosia artemisiifolia) Time of Emergence and Density on White Bean (Phaseolus vulgaris)Weed Science, 1995
- A plant process-economic model for wild oats management decisions in irrigated barleyAgricultural Systems, 1994
- Simulating resource competition in multispecies agricultural plant communitiesWeed Research, 1993
- Soybean yield and yield components as influenced by canopy heights and duration of competition of velvetleaf (Abutilon theophrasti Medik.)*Weed Research, 1991
- Role of temperature in the germination ecology of three summer annual weedsOecologia, 1977
- Ecophysiology of Ambrosia Artemisiifolia: A Successional DominantEcology, 1974