Notes on experimental procedures, etc. and tables of scoring of selected inoculated varieties (including 'Merton' cherries) for infection/ resistance.
Table of major varieties used in breeding, with genetic information (s-alleles, flesh colour, albino and dwarf characters) and notes on susceptibility to bacterial canker.
Isolation of Pseudomonas morsprunorum, Pseudomonas syringae. Includes photographs
Notes, tables, correspondence
Scoring. Rogues. Genetic descriptions of lines
Notes, procedures, experimental results and photographs: use of chemical mutagens, radiation and environmental factors to induce change between rogue and type.
Pressed leaflets and stipules showing rogue characteristics, annotated with dimension ratios, and with index cards showing crosses used in study. Numbers in green refer to the Pisum Germplasm Collection, and some annotations refer to KS Dodds' notebooks. Also bibliographic index of references on peas (mainly rogue).
JI fusarium and ascochyta culture collections. Notes on origin, etc., with photographs of isolates and effect on peas.
Correspondence and notes of telephone conversations with Plant Pathology Lab, Harpenden and others re control of PSbMV in JI Pisum Germplasm Collection and UK generally. Also notes.