Influence of Succinic Acid-2,2-Dimethylhydrazide and Ethylene on Respiration and Ethylene Production by Developing ‘Bartlett’ Pear Fruits1

Abstract

Abstract Ethylene-induced endogenous ethylene production was substantial in immature pear fruits, attaining a max rate in samples harvested 60 days after full bloom and declining thereafter. Ethylene production was not dependent on the occurrence of a respiratory climacteric nor related to the rate of respiration. Field applications of succinic acid-2,2-dimethylhydrazide (SADH) suppressed both ethylene production and fruit growth.