begonia: Begonia Pot Plant Quality Scores
Description
Begonia pot plant quality scores (for 2 varieties and 3 transport chains), during 5 weeks in simulated shelf-life conditions (temperature, light and irrigation). Quality scores were originally made on an ordinal scale from 1 to 10 (highest quality). However, only categories 2 to 9 were used, so these were re-coded to scale from 1 to 8. In addition to overall quality scores, a range of plant physiological characteristics were also observed.
Format
A data frame with 720 observations on the following variables.
Pot- pot plant identifier; 1 to 144.
Plot- location in growing compartment; 1 to 48.
Week- week number in simulated shelf-life; 1 to 5.
Temp- temperature in compartment;
16C or 21C. Light- light level in compartment;
High or Low. Chain- transport chain;
Cold, Comm (commercial) or Optm (optimum). Irrig- irrigation in compartment;
Cont (control) or Fluct (fluctuating). Variety- variety;
Balli or Batik. Qual- quality score; 1 to 8.
FDrop- count of dropped flowers.
CBDrop- count of dropped coloured buds.
GBDrop- count of dropped green buds.
FDam- count of damaged flowers.
FSing- count of single flowers.
FDoub- count of double flowers.
LYell- count of yellow leaves.
Source
Parsons NR, Edmondson RN, Gilmour SG. A generalized estimating equation method for fitting autocorrelated ordinal score data with an application in horticultural research. Journal of the Royal Statistical Society C 2006; 55:507-524.