ISHS Acta Horticulturae 367: VI International Symposium on Pear Growing
INTEGRATION OF CULTURAL AND BIOLOGICAL METHODS FOR CONTROL OF POSTHARVEST DECAY IN 'BOSC' PEARS |
| Authors: | D. Sugar, R.G. Roberts, T.L. Righetti, E.E. Sanchez |
| Abstract:
Five cultural or biological methods for control of postharvest decay of pear fruit were evaluated in 1991 and 1992. 'Bosc' pear trees were nitrogen fertilized either in spring (high fruit N) or one month pre-harvest (low fruit N); either sprayed three times with CaCl2 solutions during the growing season, or not CaCl2 sprayed; fruit were harvested either at the beginning or end of the maturity period; fruit were wounded and inoculated postharvest with either water or with a cell suspension of the yeast Cryptococcus laurentii; and fruit were stored 2–3 months either in air or in 2% oxygen. The least amount of decay was in fruit from trees nitrogen-fertilized one month pre-harvest, treated with calcium chloride during the growing season, harvested early in the maturity range, inoculated postharvest with Cryptococcus laurentii, and stored in either air or 2% oxygen. | |
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