Login | Request Account (DAF staff only)

Simulation of growth and development of diverse legume species in APSIM

Share this record

Add to FacebookAdd to LinkedinAdd to XAdd to WechatAdd to Microsoft_teamsAdd to WhatsappAdd to Any

Export this record

View Altmetrics

Robertson, M. J., Carberry, P. S., Huth, N. I., Turpin, J.E., Probert, M. E., Poulton, P.L., Bell, M., Wright, G. C., Yeates, S. J. and Brinsmead, R.B. (2002) Simulation of growth and development of diverse legume species in APSIM. Australian Journal of Agricultural Research, 53 (4). pp. 429-446. ISSN 1836-0947


Article Link: https://doi.org/10.1071/AR01106


This paper describes the physiological basis and validation of a generic legume model as it applies to 4 species: chickpea (Cicer arietinum L.), mungbean (Vigna radiata (L.) Wilczek), peanut (Arachis hypogaeaL.), and lucerne (Medicago sativa L.). For each species, the key physiological parameters were derived from the literature and our own experimentation. The model was tested on an independent set of experiments, predominantly from the tropics and subtropics of Australia, varying in cultivar, sowing date, water regime (irrigated or dryland), row spacing, and plant population density. The model is an attempt to simulate crop growth and development with satisfactory comprehensiveness, without the necessity of defining a large number of parameters. A generic approach was adopted in recognition of the common underlying physiology and simulation approaches for many legume species. Simulation of grain yield explained 77, 81, and 70% of the variance (RMSD = 31, 98, and 46 g/m2) for mungbean (n = 40, observed mean = 123 g/m2), peanut (n = 30, 421 g/m2), and chickpea (n = 31, 196 g/m2), respectively. Biomass at maturity was simulated less accurately, explaining 64, 76, and 71% of the variance (RMSD = 134, 236, and 125 g/m2) for mungbean, peanut, and chickpea, respectively. RMSD for biomass in lucerne (n = 24) was 85 g/m2 with an R2 of 0.55. Simulation accuracy is similar to that achieved by single-crop models and suggests that the generic approach offers promise for simulating diverse legume species without loss of accuracy or physiological rigour.

Item Type:Article
Subjects:Plant culture > Field crops
Live Archive:12 Jan 2024 05:05
Last Modified:12 Jan 2024 05:05

Repository Staff Only: item control page


Downloads per month over past year

View more statistics