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- Author or Editor: Leonard L. Morris x
- HortScience x
Abstract
A reflectance spectrophotometer (Agtron E5-W) was found to be a useful laboratory tool for nondestructive determination of tomato fruit color as an indicator of ripeness classes and changes in ripeness in postharvest studies. Values obtained represent the average green and red color hues of the whole fruit which is rotated dueing the measurement.
Abstract
Growth-regulating substances have been used extensively on horticultural crops to increase fruit set and prevent fruit drop. Several investigators have observed that preharvest application of growth regulators such as 2,4,5-trichlorophenoxyacetic acid may affect fruit maturity and ripening (Stewart, 4). This raised the question about the effects of the postharvest treatment of fruits with grbwth regulators.
Abstract
Numerical rating scales and their descriptive equivalents for firmness, visual quality, decay, butt discoloration, wilting, and other defects of lettuce (Lactuca sativa L.) are described. Also presented are scoring systems for brown stain, russet spotting, and rusty-brown discoloration of crisphead lettuce that consider severity of lesions, proportion of leaf affected and number of leaves affected in a head.