title: Machine vision monitoring of plant growth and motion.
abstract: The tomato plant was used as a model to study growth and movement due to temperature changes in the environment. A morphological feature, plant top projection canopy area (TPCA), was used to characterize the plant growth and movement. Three temperature regimes (normal temperature, low temperature, and a step change from normal to low temperature) were used for the study. It is found that the plants have significant cyclic canopy movement. In addition, both plant growth, which is represented by canopy expansion, and canopy movement are affected by air temperature. The response of the plant to a step change of air temperature was also documented.
authors.affiliation: Bioresource Engineering Department, Rutgers University, New Brunswick, NJ 08901-8500, USA.
authors.forename: Z
authors.initials: Z
authors.lastname: Li
authors.forename: P P
authors.initials: PP
authors.lastname: Ling
authors.forename: G A
authors.initials: GA
authors.lastname: Giacomelli
mesh_terms: D002245:Carbon Dioxide; D018504:Ecological Systems, Closed; D004780:Environment, Controlled; D006813:Humidity; D007091:Image Processing, Computer-Assisted; D018551:Solanum lycopersicum / Q000254:growth & development*; D017440:Photoperiod; D013026:Space Flight; D013696:Temperature
chemical_list: D002245:Carbon Dioxide