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RELATIONSHIP OF BOUND CALCIUM AND INOCULUM CONCENTRATION TO THE EFFECT OF POSTHARVEST CALCIUM TREATMENT ON DECAY OF APPLES BY PENICILLIUM EXPANSUM.

Author(s) : CONWAY W. S., GROSS K. C., SAMS C. E.

Type of article: Article

Summary

GOLDEN DELICIOUS APPLES WERE PRESSURE-INFILTRATED (68.95 KILOPASCALS) AT HARVEST WITH 0, 1, 2, OR 4% SOLUTIONS OF CALCIUM CHLORIDE AND STORED AT 273 K (0 DEG C). AFTER 6 MONTHS THE FRUITS WERE REMOVED FROM STORAGE AND WOUND-INOCULATED WITH A CONIDIAL SUSPENSION OF PENICILLIUM EXPANSUM. AFTER 7 DAYS AT 293 K (20 DEG C), THE FRUITS WERE RATED FOR DECAY SEVERITY. THE CELL WALLS OF SIMILARLY TREATED BUT UNINOCULATED FRUITS WERE EXTRACTED AND ANALYZED FOR CALCIUM CONCENTRATION. AS THE CELL WALL CALCIUM CONTENT INCREASED AND THE INOCULUM CONCENTRATION DECREASED, THE AMOUNT OF DECAY DECREASED. THESE RESULTS INDICATE THAT AS THE INOCULUM CONCENTRATION DECREASES THE RELATIVE EFFECTIVENESS OF INCREASED CELL WALL-BOUND CALCIUM IN REDUCING DECAY INCREASES.

Details

  • Original title: RELATIONSHIP OF BOUND CALCIUM AND INOCULUM CONCENTRATION TO THE EFFECT OF POSTHARVEST CALCIUM TREATMENT ON DECAY OF APPLES BY PENICILLIUM EXPANSUM.
  • Record ID : 1988-1024
  • Languages: English
  • Source: Plant Dis. - vol. 71 - n. 1
  • Publication date: 1987/01
  • Document available for consultation in the library of the IIR headquarters only.

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