Phytotoxicity of satsuma mandarines fumigated with methyl bromide, phosphine and mixtures of phosphine and methyl bromide.

摘要

Satsuma mandarins, Citrus reticulate were fumigated with methyl bromide, phosphine and mixtures of methyl bromide and phosphine to confirm chemical injuries. The data showed that no injury was observed on fruit at a dose of 48 g/m3 of methyl bromidefor 2 hours at 15, 20 and 25鳦 and mixtures of 14 g/m3 of methyl bromide and 3 g/m3 of phosphine for 3 hours at 20鳦, while the sensory disorder was confirmed on waxed fruit fumigated with gas mixtures. Both waxed and unwaxed fruit treated at a dose of3 g/m3 of phosphine for 24 and 40 hours at 15鳦 and 16 hours at 25鳦 were damaged with spots and brownish or blackish brown discoloration on fruit skin.