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- Author or Editor: C. O. Chichester x
Abstract
Green ‘Valencia’ oranges grafted singly onto seedling trees were placed in a lathhouse to lose chlorophyll and then transferred back to the higher temperatures of the greenhouse where the peel commenced to regreen. The peel carotenoid content of the regreened fruit declined rapidly during the first 4 weeks - a concomitant rise in peel chlorophyll content was recorded. Similar peel pigment changes were measured in regreening orchard-grown ‘Valencia’ oranges. The pulp composition of regreened fruit as measured by soluble solids and acidity showed similar trends to that of the orchard-grown fruit. The data indicate that the grafted fruit provide a convenient system for further studies of the regreening process.
Abstract
Growth, respiration, and ethylene production patterns of ‘Crenshaw’ and ‘Persian’ cultivars of muskmelon (Cucumis melo L.) were similar to patterns previously established for cantaloupe (‘PMR 45’). From 3 weeks after anthesis the carotenoid content of the pulp of all 3 cultivars steadily increased from the low level characteristic of green tissue. Chlorophyll content decreased throughout the development of the fruits, but in the cantaloupe and ‘Crenshaw’ there was a final loss of chlorophyll during ripening.