Control of postharvest diseases of rambutan using controlled atmosphere storage and potassium metabisulphite or Trichoderma harzianum.
Sivakumar, D., Wijeratnam, R. S. W., Wijesundera, R. L. C. and Abeyesekere, M.
Phytoparasitica. Volume 30, Number 4, 2002. Pages 403-409.
2002
บทคัดย่อ
Botryodiplodia theobromae, Colletotrichum gloeosporioides [Glomerella cingulata] and Gliocephalotrichum microchlamydosporum are the causal fungi of three rambutan postharvest diseases, namely stem end rot, anthracnose and brown spot, respectively. Two different treatments to control the diseases were investigated: application of potassium metabisulfite (250 ppm) or culture filtrate of Trichoderma harzianum (TrH 40) followed by controlled atmosphere storage (CA) at 13.5 deg C and 95% R.H. Potassium metabisulfite at 250 ppm under CA effectively controlled the incidence and severity of the three postharvest diseases and maintained the eating quality and colour of the fruit for 21 days. The greatest effect of this treatment was on brown spot disease, caused by G. microchlamydosporum. Application of TrH 40 was less effective than potassium metabisulfite.