2. Materials andmethods
2.1. Walnut samples
Inshellwalnuts,
J. regia L. cv.Hartley and cv. Chandler,
were obtained froma San Joaquin county processor in California.
Thewalnuts had been hulled and dried (to b8% moisture) at a commercial huller-dehydrator
and had been stored at the processor for 1 to 6 months after harvest.
For the inoculation studies, the inshell walnuts were used within
1 month of receipt; for the brightening study, the walnuts were stored
for up to 11 months at ambient conditions in the laboratory (23–25 °C,
25–35% relative humidity) in a closed container.Walnuts with missing
shell or those with major visible cracks were discarded