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izvor podataka: crosbi

Reduction of olive fruit fly damage by early harvesting and impact on oil quality parameters (CROSBI ID 207668)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Dminić, Ivana ; Bažok, Renata ; Igrc Barčić, Jasminka Reduction of olive fruit fly damage by early harvesting and impact on oil quality parameters // European journal of lipid science and technology, 117 (2015), 1; 103-111. doi: 10.1002/ejlt.201400150

Podaci o odgovornosti

Dminić, Ivana ; Bažok, Renata ; Igrc Barčić, Jasminka

engleski

Reduction of olive fruit fly damage by early harvesting and impact on oil quality parameters

Damaged olive fruits are proved to directly affect the quantitative and qualitative properties of olive oils. The most important fruit damage is caused by the olive fly (Bactrocera oleae Gmelin). Olive fly population was monitored weekly on two olive cultivars (Buža and Istarska bjelica), from June until mid October, in Rovinj and Livade (Istria, Croatia). The number of eggs, larvae and pupae was established and the total and active infestation was calculated. The fruit infestations for early and for late harvesting were obtained based on the calculated regression equation. For the prediction of the changes in the oil quality parameters linear regression slopes, obtained by Koprivnjak et al., were used. We established a strong positive correlation between DD accumulation and cumulative capture of flies, as well as with the total and active fruit infestations. According to obtained results it can be stated that I. bjelica is less sensitive to decrease in total phenols amount, to increase in FFA mass ratio and to increase in peroxide values comparing to Buža. Moreover, the differences in investigated parameters between earlier and late harvesting dates in I. bjelica are lower due to lower infestation predicted for both harvesting dates and due to lower sensitivity to the changes in quality parameters. Therefore, early harvesting date as a model for preventing fruit damage as well as a model for preventing negative change in oil quality parameters is a valid tool. But, the effectiveness of this model could also depend on the characteristics of olive cultivar.

Bactrocera oleae ; infestation ; harvest ; olive fruit fly ; olive oil quality

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Podaci o izdanju

117 (1)

2015.

103-111

objavljeno

1438-7697

10.1002/ejlt.201400150

Povezanost rada

Poljoprivreda (agronomija)

Poveznice
Indeksiranost