The thesis trial on genetic variability and character association in blackgram was laid out as a randomized complete block design with replications. Walking the plots with a notebook is the heart of the work, and a few habits make the scores comparable from plant to plant.
Plant traits are easy to argue about and hard to compare across weeks. The fix was simple: take a leaf, a flower or a pod from each genotype, lay them in a row on a white sheet, write the genotype under each, and put a ruler in the frame. One photo then holds the whole comparison, with a scale. The photos below show leaves, flowers and pods done this way.
Some things only appear when you walk the plots. Yellow mosaic virus symptoms turned up on some leaves, and the gallery has a photo from late May. Leaf colour also varied a lot between genotypes, from dark green to yellow-green, and the scoring key has codes for it.
The key used for this work, with photos for each trait, is in the Guide section of the home page: growth habit, leaf, flower and pod traits, and the pests and diseases to note.