Preharvest applications of Ca(OH) 2 reduced splitting of ‘Lambert’ sweet cherry ( Prunus avium L.) in laboratory trials. Three sequential preharvest sprays of Ca(OH) 2 consistently reduced splitting, while single sprays of Ca(OH) 2 in combination with NAA, ethephon, or B were moderately effective. Ca(OH) 2 was a more effective Ca source than CaCl 2 for reduction of splitting. Ca applications did not affect fruit size, but 3 applications of Ca(OH) 2 increased fruit soluble solids. Chemical names used: (2-chloroethyl)phosphonic acid (ethephon) and 1-naphthaleneacetic acid (NAA).
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Nancy W. Callan (1986) studied this question.
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