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EFFECT OF TEMPERATURE ON THE EMISSION OF SULPHUR DIOXIDE FROM GAS GENERATORS FOR GRAPES.

Author(s) : LASZLO J. C.

Type of article: Article

Summary

AT TEMPERATURES ABOVE 20 DEG C THE RATE OF SO2 RELEASE FROM GENERATORS IS RAPID AND SO2 CONCENTRATION OF 180 TO 250 PPM IS REACHED WITHIN THE FIRST TWO HOURS AFTER PACKING. THIS WAS A MAJOR CAUSE OF SO2 INJURY. WITHIN 24 TO 36 HOURS AFTER PACKING THE SO2 CONCENTRATION WAS ALMOST ZERO AND WHEN COOLING WAS DELAYED FOR 24 TO 36 HOURS, BOTRYTIS ROT DEVELOPED. THE SO2 CONCENTRATION IN GRAPES REACHED 20 PPM WITHIN TWO HOURS AFTER PACKING AND STABILIZED AT 8 TO 10 PPM DURING STORAGE AT -0.5 DEG C. BOTH BOTRYTISROT AND SO2 INJURY INCREASED WITH A DELAY IN COOLING.

Details

  • Original title: EFFECT OF TEMPERATURE ON THE EMISSION OF SULPHUR DIOXIDE FROM GAS GENERATORS FOR GRAPES.
  • Record ID : 1982-0114
  • Languages: English
  • Source: Deciduous Fruit Grow. - vol. 31 - n. 3
  • Publication date: 1981
  • Document available for consultation in the library of the IIR headquarters only.

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