We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
MODELLING THE INTERACTION OF COTTON AND THE COTTON BOLL WEEVIL. I. A COMPARISON OF GROWTH AND DEVELOPMENT OF COTTON VARIETIES.
- Authors
Gutierrez, A.P.; Dos Santos, W.J.; Pizzamiglio, M.A.; Villacorta, A.; Ellis, C.K.; Carvalho, L.H.; Stone, N.D.
- Abstract
(1) A relatively simple per capita, supply-demand regulated, age-structured model of cotton growth and development is described and used to simulate seven varieties in two species of cotton from different regions of the world. The model is used to examine plant/weather and other abiotic variable interactions. Measures of earliness are used to assess varietal characteristics. (2) The model has the form of a population model regulated by the rudiments of physiology. It assumes that the cotton crop canopy is composed of a population of plants with age structure in which each member contains age-structured subpopulations of leaf, stem and root masses and of fruit masses and numbers. The dynamics model for each subpopulation is based upon an age-structured distributed maturation time model with attrition. When the model is given initial conditions, the physiology and dynamics are driven by the observed weather. (3) The Frazer-Gilbert functional response model from animal ecology was modified and used to estimate the photosynthetic, nitrogen and water acquisition rates. A metabolic pool model was used to allocate photosynthate to respiration, growth, reproduction and reserves. A similar model was used to allocate nitrogen. (4) The interplay between the supply and demand of photosynthate, nitrogen and water controls their acquisition rates, the allocation rates of photosynthate and nitrogen, the production rate of new subunit numbers, and the attrition of fruits.
- Subjects
COTTON; PLANT fibers; ANIMAL ecology; PHOTOSYNTHATES; CARBOHYDRATES; BIOLOGY; ENVIRONMENTAL sciences
- Publication
Journal of Applied Ecology, 1991, Vol 28, Issue 2, p371
- ISSN
0021-8901
- Publication type
Article
- DOI
10.2307/2404557