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Briny injury of apple, pear, peach, and grape following the foliar spray of saline solutions was investigated. No injury was observed with the spray of MgSO₄ in the range 0.4 to 1.3% (ca. 2-fold concentration of common seawater). Browning symptom was initiated 1 h after the spray of 3% NaCl in apple, pear, and peach trees, while 2 h were needed for grape, but the latter developed the symptom faster than the formers. Spray of 1% NaCl did not defoliate in all fruit species tested, but complete defoliation occurred with the spray of 3% NaCl in apple and peach trees. Pear and grape showed higher defoliation rate with increasing NaCl concentration. The response of apple to KCl spray showed similar pattern to that to NaCl spray, but the symptom of peach was proportional to KCl concentration. Also, the defoliation response of pear to KCl spray was similar to that to NaCl spray, while grape was completely defoliated by the spray of KCl at higher than 6% although no defoliation occurred with the KCl spray up to 4%. Foliar spray of 3% NaCl resulted in 4-fold increase in ethylene production 24 h after the spray, and the production was returned to early stage rate after 72 h. Ethylene production of control was nearly constant with slight decrease after 4 h. Browning and defoliation responses to the spray of 3% NaCl on lower side were not different from the spray on both sides regardless of fruit species, while no injury symptoms occurred by the spray on upper side.

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Abstract
Introduction
Materials and Methods
Results and Discussion
Literature Cited

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UCI(KEPA) : I410-ECN-0101-2009-525-016908966