Effects of Chemical Fruit Thinning on Oil Yield and Quality in ‘Gemlik’ Olive (Olea europaea L.)

Yıl 2018, Cilt: 55 Sayı: 2, 197 - 202, 27.06.2018

Murat İsfendiyaroğlu Zekeriya Çigdem Elmas Özeker

https://doi.org/10.20289/zfdergi.342483

Öz

‘Gemlik’
olive variety started to be grown in many areas of Turkey in recent years. ‘Gemlik’ is mainly a black
table variety, but it is processed to oil in many areas.  So chemical fruit thinning may be useful to
control alternate bearing and standardization of the fruit and consequently the
oil quality. In this work, predicting the effects of chemical fruit thinning by
potassium salt of naphtaleneacetic acid (NAA-K) on oil yield and quality in ‘Gemlik’,
which is one of the prominent olive variety of Turkey was aimed. Results showed
that NAA applications decreased the oil acidity levels in the first year (off
year). In the second year (on year), NAA sprayings at 100 and 120 ppm increased
the oil acidity up to 1.75 % while 150 ppm decreased the acidity value to 0.36
%. 180 ppm NAA significantly augmented the oil content of olive fruits
particularly in “on year” and gave rise to 22 and 48 % increments in oil rates successively
on fresh and dry matter basis compared to control.       

Anahtar Kelimeler

Olive, oil, thinning, NAA, quality

Kaynakça

• Abdrabboh, G. A., 2013. Effect of some growth regulators on yield and fruit quality of Manzanillo olive trees. Nature and Science, 11 (10): 143-151.
• Ali, H. E. and M. A. El-Waseif, 2015. Effect of treated olive fruits by some growth regulators on physiochemical properties of extracted olive oil. Current Science International, 4 (1): 105-116.
• Anonymous, 2000. World Catalogue of Olive Varieties. International Olive Oil Council. Spain, 360 pp.
• Barone, E., G. Gullo, R. Zappia and P. Inglese, 1994. Effect of crop load on fruit ripening and olive oil (Olea europaea L.) quality. Journal of Horticultural Science, 69 (1): 67-73.
• Barranco, D., 2010. Varieties and rootstocks (59-82). In: Olive Growing. D. Barranco, R. F. Escobar and L. Rallo (Eds.). RIRDC. Australia.1st English Edition. pp 756.
• Dag, A., A. Bustan, A. Avni, S. Lavee and J. Riov, 2009. Fruit thinning using NAA shows potential for reducing biennial bearing of ‘Barnea’ and ‘Picual’ oil olive trees. Crop and Pasture Science, 60: 1124 -1130.
• El Badry, N., 2012. Physiochemical characteristics and quality criteria of olive oil extracted from Picual olive fruits treated by some growth regulators. Middle East Applied Sciences, 2 (1): 37-50.
• FAOSTAT, 2017. Food and Agriculture Organization of The United Nations, Statistics Division (access: 25.09.2017).
• Hartmann, H.T., 1952. Spray thinning of olives with Naphthalene acetic acid. Proceedings of the American Society for Horticultural Science, 59: 187–195.
• Haouari, A., M. C. Van Labeke, K. Steppe, F. B. Mariem, M. Braham and M. Chaieb, 2013. Fruit thinning affects photosynthetic activity, carbohydrate levels, and shoot and fruit development of olive trees grown under semi arid conditions. Functional Plant Biology, 40: 1179-1186.
• Hermoso, M., M. Uceda, A. Garcia, B. Morales, M.L. Frias and A. Fernandez, 1991. Elaboracion de aceite de calidad. Ed. Consejeria de Agricultura y
• Pesca de la Junta de Andalucia. Serie Apuntes 5/92. Sevilla.
• IOOC, 2017. International Olive Council, http: //www.internationaloliveoil.org (access: 25.09.2017).
• Jackson, D., N. Looney, M. Morley-Bunker and G. Thiele, 2011. Temperate and Subtropical Fruit Production. 3rd ed. CABI. 327 pp.
• Krueger, W. H., Z. R. Health and B. Mulqueeny, 2002. Effect of spray sollution concentration, active ingredient, certain additives, and sequential treatments of naphthalene acetic acid for chemical thinning of Manzanillo table olives. Acta Horticulturae, 586: 267–271.
• Krueger, W. H., J. Maranto and G. S. Sibbett, 2005. Olive fruit thinning. In: Olive Production Manual. Sibbett, G. S. and Ferguson, L.(Eds.), 101–104 pp. University of California, Agriculture and Natural Resources Publication 3353, Oakland, California, USA, 180pp.
• Lavee, S., 2007. Biennial bearing in olive (Olea europaea). Annales: Series Historia Naturalis, 17: 101-112.
• Lavee, S. and M. Wonder, 2004. The effect of yield, harvest time and fruit science on the oil content in fruit of irrigated olive trees (Olea europaea), cvs. Barnea and Manzanillo, Scientia Horticulturae, 99: 267-277.
• Martin, G.C., L. Ferguson and G. S. Sibbett, 2005. Flowering, Pollination, Fruiting, Alternate Bearing, and Abscission. In: Olive Production Manual. Sibbett, G.S. and Ferguson, L.(Eds.) 49-54 pp. University of California, Oakland, California, USA. 180 pp.
• Monselise, S. P. and E. E. Goldschmidt, 1982. Alternate bearing in fruit trees. Horticultural Reviews, 4: 128–173.
• Nafea, S. M. and H. K. Abdulfatah, 2014. Effect of foliar application of GA3 and NAA for reducing alternate bearing of olive trees (Olea europaea L. cv. Ashrasie). IOSR Journal of Agriculture and Veterinary Science, 7 (1): 8-12.
• Rallo, L. and G.C. Martin, 1991. The role of chilling in releasing olive floral buds from dormancy. The Journal of the American Society for Horticultural Science, 116: 1058-1062.
• Therios, I. N., 2009, Olives (No. 18). CABI. 409 pp.
• Uceda, M., M. Hermoso, M. P. Aguilera, 2010. Olive oil quality. 619-645. In: Olive Growing. D. Barranco, R. F. Escobar and L. Rallo (Eds.). RIRDC. Australia.1st English Edition. 756 pp.
• Wiesman, Z., 2009. Desert olive oil cultivation : Advanced Biotechnologies. Academic Press. 397 pp.