Longitudinal data for an experiment to investigate tomato response to mycorrhizal fungi and zinc

The data is from an experiment in a Smarthouse in the Plant Accelerator and is decribed by Watts-Williams et al. (2019). The experiment involves 32 plants, each placed in a pot in a cart, and the carts were assigned 8 treatments using a randomized complete-block design. The main response is Projected Shoot Area (Area for short), being the sum of the plant pixels from three images. The eight treatments were the combinations of 4 Zinc (Zn) levels by two Arbuscular Mycorrhiza Fungi (AMF) levls. Each plant was imaged on 35 different days. It is used to explore the analysis of growth dynamics.


A data.frame containing 14784 observations on 33 variables. The names of the columns in the data.frame are:

Column Name Class Description
1 Lane factor
the Lane in the 2 Lane x 16 Positions grid. 2 Position factor
the Position in the 2 Lane x 16 Positions grid. 3 Days factor
the numbers of days after planting on which the current
data was observed. 4 Snapshot.ID.Tag character
a unique identifier for each cart in the experiment. 5 xDays numeric
a centered numberic covariate for Days. 6 Days.diffs numeric
the number of Days between this and the previous
observations (all one for this experiment). 7 xPosn numeric
a centered numeric covaariate for Positions. 8 Block factor
the block of the randomized complete-block design to
which the current cart belonged. 9 Cart factor
the number of the cart within a block. 10 AMF factor
the AMF treatment (- AMF, +AMF) assigned to the
cart. 11 Zn factor
the Zinc level (0, 10, 40, 90) assigned to the cart. 12 Weight.After numeric
the weight of the cart after watering. 13 Water.Amount numeric
the amount of water added to the cart. 14 Water.Loss numeric
the amount of water lost since the previous watering. Column Name Class


Watts-Williams SJ, Jewell N, Brien C, Berger B, Garnett T, Cavagnaro TR (2019) Using high-throughput phenotyping to explore growth responses to mycorrhizal fungi and zinc in three plant species. Plant Phenomics, 2019, 12.

  • tomato.dat
Documentation reproduced from package growthPheno, version 1.0-13, License: GPL (>= 2)

Community examples

Looks like there are no examples yet.