Plant Phenomics / 2019 / Article / Fig 3

Research Article

Optical Flow-Based Analysis of the Relationships between Leaf Wilting and Stem Diameter Variations in Tomato Plants

Figure 3

Typical variations in stem diameter. Diurnal variations and short-term variations in stem diameter and irrigation on a sunny day (a) and on a cloudy day (b). PPFD and vapor pressure deficits in the two days (c, d). All data were collected from target plant 2, and daily averages of the PPFD were maximum and minimum on April 19, 2018, and April 24, 2018, respectively.