Growth regulators affect apple maturity
AuthorsWarren C. Micke
Ronald H. Tyler
James T. Yeager
Authors AffiliationsWarren C. Micke is Extension Pomologist, University of California, Davis; Ronald H. Tyler is Farm Advisor, Santa Cruz County; James T. Yeager is Staff Research Associate, University of California, Davis.
Hilgardia 31(3):15-15. DOI:10.3733/ca.v031n03p15. March 1977.
Reports from other apple producing states have shown that two chemical growth regulators, Alar and ethephon, could have a distinct effect on apple maturity. Alar has been reported to increase firmness of fruit, delay maturity, increase red surface color of red varieties, reduce incidence of scald, and reduce pre-harvest drop. Ethephon has been shown to hasten fruit maturity, improve the soluble solids content of fruit, and improve red surface color of red varieties.
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