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5.3 Speaking Plant / Speaking Fruit Approaches

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Hashimoto, Yasushi, Tetsuo Morimoto, and Josse De Baerdemaeker. 2006. Section 5.3 Speaking Plant / Speaking Fruit Approaches, pp. 244-259 of Chapter 5 Precision Agriculture, in CIGR Handbook of Agricultural Engineering Volume VI Information Technology. Edited by CIGR--The International Commission of Agricultural Engineering; Volume Editor, Axel Munack. St. Joseph, Michigan, USA: ASABE.  .(doi:10.13031/2013.21678)
Authors:   Y. Hashimoto, T. Morimoto, and J. De Baerdemaeker
Keywords:   SPA, SFA, Sensors, Plant responses, Fruit responses, Measurement, Identification, Optimization, Environmental control, Speaking plant, Speaking fruit

A skilled grower can deal well with various plants and yield good products using intuition and visual information, in those ways communicating with the plants. To optimize plant production scientifically, it is important to measure plants physiological responses using sensors and then use that information for control. Such an approach is called the speaking plant approach (SPA), where environmental factors are the input variables and the plant responses are the output variables. The term speaking plant (SP) refers to plant responses that are measured using sensors. This approach is also applicable to storage processes and is called a speaking fruit approach (SFA). Measurement, identification, and optimization of plant (or fruit) responses, as affected by environmental factors, are important tasks for the SPA (or SFA). It is, however, difficult to sufficiently address these tasks because plant responses are quite complex and uncertain, but intelligent control techniques can facilitate such tasks. This section introduces SPA and SFA concepts and then presents an intelligent control technique for realizing the SPA and SFA. Finally, applications of the SP- or SF-based intelligent control technique for optimization of cultivating and storage processes are provided, aiming at qualitative improvement of plants and fruits.

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