Data for: Above-ground dry mass and fruit geometries of 31 field muskmelon plants

We collected a total of 751 fruits from 31 Cucumis melo L. var. agrestis Naud. plants, digitized the side profiles of these fruits, and applied an explicit re-expression of Preston’s equation (referred to as EPE hereinafter) to fit the planar coordinates of each fruit profile. By using the estimated parameters, we calculated the volume and surface area of each fruit. The black_white.zip file saves the black and white .bmp images at 600 dpi for the 751 fruits profiles. The edge_data.zip file includes the planar coordinates of each of the 751 fruits, and the EPE results.csv file includes the estimated parameters and goodness-of-fit of the EPE, and the fruit surface area and volume calculated by the surface area and volume formulas of the solid of revolution based on the EPE for each fruit. In addition, the EPE results.csv file also provides the measured volumes of the 751 fruits using the graduated cylinders. The MPG.csv file includes the total leaf dry mass, total stem dry mass, and tota..., A total of 751 fruits from 31 Cucumis melo L. var. agrestis Naud. plants were collected for detailed study. Each fruit was photographed using a horizontal smartphone (iPhone 12, Zhengzhou, China), mounted on an adjustable tabletop phone mount, while placing the fruit on a test tube rack directly beneath the camera to ensure that the fruits were stably positioned horizontally and that the lens was focused on the fruit's center. To calibrate the deviation of the image size of each fruit from its actual size, we measured the maximum length of the fruit using a vernier caliper.
To obtain the planar coordinates of fruit 2D profiles, the photographs were converted into black-white images and saved as .bmp format using Adobe Photoshop CS2 (version 9.0; Adobe, San Jose, CA, USA). A program developed by Shi et al. (2018) and Su et al. (2019) developed in Matlab (version >= 2009a; MathWorks, Natick, MA, USA) was then used to extract the planar coordinates of each fruit profile from the corresp..., , # Profile data of *Cucumis melo* L. var. *agrestis* Naud. fruits

## Description of the data and file structure

In the black_white.zip file, there are 751 .bmp images at 600 dpi. The image size was scaled to its actual size using the ratio of its actual fruit length measured to the fruit length in the scanned image. This means that the image size in a .bmp file is equal to the actual size of a fruit profile.

In the edge_data.zip file, there are 751 .csv files. In each .csv file, there are two columns, which record the x- and y-coordinates in cm for an arbitrary fruit's side profile.

In the EPE results.csv file, there are 18 columns.
(1) Image represents the fruit number. The number before the underline represents the individual plant number, and the number after the underline represents the fruit number of an individual plant.
(2) x0 represents the x-coordinate of the center of a fruit profile (in cm).
(3) y0 represents the y-coordinate of the center of a fruit profile (in cm).
(4) t...