Splitting of Navel oranges: Studies indicate local temperature and humidity more closely related to incidence of injury than is soil moisture content
AuthorsO. C. Taylor
G. A. Cahoon
L. H. Stolxy
Authors AffiliationsO. C. Taylor is Assistant Horticulturist, University of California, Riverside; G. A. Cahoon is Assistant Horticulturist, University of California, Riverside; L. H. Stolzy is Assistant Irrigation Engineer, University of California, Riverside.
Hilgardia 12(3):6-10. DOI:10.3733/ca.v012n03p6. March 1958.
Crop loss—of 20% or more—from the splitting of Navel oranges is no new problem. The trouble has plagued orange growers the world over and the general opinion seems to be that internal pressure develops within the fruit—probably as a result of extreme changes in moisture content associated with certain weather and soil moisture conditions—which ruptures the rind at the weakest point, the navel opening. Once started, the split usually expands rapidly dividing the fruit into two or more segments.
Also in this issue:Changes in orange marketing: Developing revolution in marketing and distribution of the nation's food products affects fresh and processed oranges
Citrus trees in water cultures: Information derived from studies using nutrient solutions as tools of research is of inestimable value to citrus industry
Effect of nontillage of navels: Relation of some tillage practices to water infiltration, yield, and quality of oranges part of fertilizer experiment
Albinism in citrus seedlings: Nongenetic absence or deficiency of chlorophyll in seedlings prevented by treating freshly extracted seeds with fungicide
Iron and zinc foliage sprays: Radioactive tracers being used in basic studies on factors influencing absorption and translocation of micronutrients
Chlorine absorption: All portions of citrus trees grown in soil cultures absorbed chlorine in test
Red mite on citrus: Timing control treatments important and influenced by climate of growing areas
Grocery store credit service: Combinations of credit with telephone and delivery services are related to the locations, ownership and sizes of stores
Woolly and green apple aphids: Field trials with new materials in orchard near Watsonville indicate same timing of spray treatment controls both pests
Toxicity studies with arsenic in eighty California soils
Arsenic fixation in relation to the sterilization of soils with sodium arsenite
Toxicity studies with sodium chlorate in eighty California soils