Abstract
Six processing squash and pumpkin cultivars (Marrow, Howden, Butternut, Buttercup, Golden Delicious, and Turk's Turban) were direct-seeded into replicated plots treated with selected pre-emergence herbicides. Treatments included application of varying rates of clomazone, an inhibitor of carotenoid biosynthesis. Problems associated with bleaching and whitening of fruit, and storability have been reported in squash and pumpkins treated with labelled rates of clomazone. Therefore, this study was initiated with FMC to evaluate herbicide treatment effects on cultivars during 6 wk postharvest storage. Replicated samples were stored at 18°C and quality was evaluated at each storage interval (0, 2, 4, 6 wk). Quality was assessed by total carotenoid and reduced ascorbic acid contents, color retention, peroxidase and lipoxygenase activities, % soluble solids, and fatty acid composition. Results indicated differences in levels of tissue bleaching, carotenoid contents, enzyme activities among cultivars over time. Treatment with high rates of clomazone resulted in reduced tissue carotenoid content, with certain cultivars more affected than others.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
