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A dynamic growth model of vegetative soya bean plants: model structure and behaviour under varying root temperature and nitrogen concentrationA differential equation model of vegetative growth of the soya bean plant (Glycine max (L.) Merrill cv. Ransom') was developed to account for plant growth in a phytotron system under variation of root temperature and nitrogen concentration in nutrient solution. The model was tested by comparing model outputs with data from four different experiments. Model predictions agreed fairly well with measured plant performance over a wide range of root temperatures and over a range of nitrogen concentrations in nutrient solution between 0.5 and 10.0 mmol NO3- in the phytotron environment. Sensitivity analyses revealed that the model was most sensitive to changes in parameters relating to carbohydrate concentration in the plant and nitrogen uptake rate.
Document ID
Document Type
Reprint (Version printed in journal)
Lim, J. T.
(North Carolina State University Raleigh 27695)
Wilkerson, G. G.
Raper, C. D. Jr
Gold, H. J.
Date Acquired
August 21, 2013
Publication Date
February 1, 1990
Publication Information
Publication: Journal of experimental botany
Volume: 41
Issue: 223
ISSN: 0022-0957
Subject Category
Life Sciences (General)
Funding Number(s)
Distribution Limits
Non-NASA Center
NASA Discipline Life Support Systems
NASA Discipline Number 61-10

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