Facilitation of olive harvest by microbial indole acetic acid and an enzyme mixture

Year 2018, , 88 - 92, 20.09.2018

Aynur Gul Karahan , Neylan Cetin Mehmet Lutfu Cakmakci

https://doi.org/10.31015/jaefs.18014

Abstract

In this study, the effect of indole acetic acid (IAA) and/or a commercial enzyme mixture on the olive harvest was analyzed. IAA was produced by Gibberella fujikuroi. IAA (1500 and 3000 ppm) and/or the commercial enzyme preparation (1%) was mixed and applied to the olive trees before (3 weeks and 1 week) the harvest. The changes in protein, pectin and cellulose contents of fruits were determined monthly. While the cellulose and protein contents showed a decrease in 2 periods of 3 months (July-September and October-December), pectin contents increased in the same period. IAA and/or enzyme applications did not lead to any significant changes in the cellulose and protein contents of the fruit (p>0,001). However, the pectin amount in the trees where the enzyme application was performed before the harvest, showed a tendency to fall. The most convenient application with regard to the fruit and leaf fall was 3000 ppm IAA+1% enzyme application 3 weeks before harvest. While the fruit fall amount increased more when compared to the control and other groups with this application, the leaf fall decreased significantly.

Keywords

Gibberella fujikuroi, Pectinolytic Enzymes, Protein, Pectin

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