The effect of climatic conditions on hazelnut (Corylus avellana) yield in Giresun (Turkey)

Bu çalışmada fındık verimliliği ile iklim koşulları arasındaki ilişki incelenmiştir. Fındık yetiştiriciliğinde Dünya’da en uygun alanlardan birisi Karadeniz Bölgesi’dir. Bölgede yetiştirilen fındık çeşitleri içerisinde ekonomik değeri en yüksek olan fındık Tombul fındık olup, en uygun koşulları, özellikle iklim koşullarını Giresun’da bulmaktadır. Bu sebeple çalışma alanı olarak Giresun ili seçilmiştir. 1993 – 2007 dönemine ait güvenilir iklim ve fındık üretimi verileri analiz edilmiştir. Fındık verimliliği üzerinde etkili olan birçok faktör arasında, en önemli faktörlerden birisi iklim koşullarıdır. Bu amaçla, fındığın fenolojik dönemlerinde özel iklim istekleri incelenmiş ve bunların verimlilik üzerine etkileri analiz edilmiştir. Bu analiz iki türlü yapılmıştır. Birincisi özel iklim istekleri analizi, ikincisi korelasyon ve basit lineer regresyon analizidir. Öncelikle, fındığın özel iklim isteklerine bağlı olarak günlük, aylık ve yıllık meteorolojik verilerin verimlilik üzerine etkisi yıldan yıla analiz edilmiştir. Sonrasında, iklim değişkenleri ve verimlilik arasındaki korelasyon analiz edilmiş ve basit lineer regresyon denklemi uygulanmıştır. Her iki analizin sonucuna göre; fındık verimliliğini etkileyen en önemli faktör olarak sıcaklık olarak tespit edilmiştir.

Giresun’da iklim koşulları’nın fındık (Corylus avellana) verimliliği üzerine etkisi

In this study the relationship between hazelnut yield and climatic conditions were analyzed. Black Sea Region, Turkey, is one of the most favorable habitat for hazelnut cultivation in the world. Having the highest economic value among various hazelnut cultivars cultivated in this region, Tombul hazelnut finds the optimum conditions- principal of these conditions is the climate one- in Giresun. Therefore, with the assumption that it can be accepted as the most suitable sample for this study, Giresun was selected. The time period between 1993 - 2007 which included reliable data on climate and production was analyzed. Among many factors effective on yield, climatic conditions have a principal role. With this purpose, the special climatic requirements of hazelnut during its each phenological period were examined and their effects on yield were analyzed. This analysis was made in two ways. The first one is the special climatic requirements analysis and the second one is the correlation and simple linear regression analysis. In the former the effect of daily, monthly and annual meteorological data in accordance with hazelnut’s special climatic requirements on yield was analyzed year by year. In the latter, the correlation between climatic variables and yield was analyzed and then simple linear regression was performed. According to both analyses, the most considerable climatic variable affecting the yield was determined as temperature.

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Adams, R.M, Chen C.C, Mc Carl BA, Schimmelpfennig DE (2001) “Climate variability and climate change: implications for agriculture”. Adv Econ Environ Resour 3: 95-113.

Alexandrov, V, Hoogenboom, G. (2000), “The impact of climate variability and change on crop yield in Bulgaria”. Agric For Meteorol 104:315-327.

Alexandrov, V., Hoogenboom, G., (2001), “Climate variations and agricultural crop production in Georgia”, USA. Clim Res 17:33-43.

Beyhan, N, Odabaş, F., (1996a) “The climate factor’s effects on the yield in hazelnut and importance for growing (in Turkish: iklimsel faktörlerin fındıkta verimlilik üzerine etkileri ve yetiştiricilik açısından önemi)”. Ondokuz Mayıs University Journal of Agricultural Faculty 11:177-188, Samsun.

Beyhan, N., Odabaş, F., (1996b) “A Research on the Flower and Fruit Drops of Hazelnut (in Turkish: Fındıkta çiçek ve meyve dökümlerinin incelenmesi üzerine bir araştırma).” The Symposium on hazelnut and other nut fruits. Ondokuz Mayıs University Faculty of Agriculture, Samsun.

Beyhan, N., Marangoz, D., (1999) “Investigation of blank nuts formation of hazelnut (in Turkish: Fındıkta boş meyve oluşumunun incelenmesi)”. III. National Congress on Horticulture, Ankara, p 585-589.

Beyhan, N., (2000), “Fertilization Biology of Hazelnut (in Turkish: Fındıkta döllenme biyolojisi)”. Ondokuz Mayıs University. Journal of Agricultural Faculty 15:116-122.

Beyhan, N, Marangoz, D., (2007), “An investigation of the relationship between reproductive growth and yield loss in hazelnut”. Scientia Horticulturae 113:208-215.

Challinor, A.J., Slingo, J.M, Wheeler, T.R., Craufurd, P.Q., Grimes, DIF., (2003) “Toward a combined seasonal weather and crop productivity forecasting system: determination of the working spatial scale.” J Appl Meteorol 42:175-192.

Dilley, M., (1997) “Climatic factors affecting annual maize yields in the valley of Oaxaca, Mexico.” Int. J. Climatol 17:1549-1557.

Fiskobirlik, (2008), “Records of Union of Agricultural Cooperatives for the Sale of Hazelnut. Giresun, Turkey.” Accessed 17 Jan. http://www.fiskobirlik.org.tr.

FAO (Food and Agriculture Organization), http://www.faostat.fao.org.tr. Gaál,M., Mézes, Z., Szabó, Z., Szenteleki, K 2011. “Evaluation of the Expected Climatic Conditions Regarding Cherry Production in Central Hungary” Applied Ecology And Environmental Research 9(3): 265-277.

IPCC (Intergovernmental Panel on Climate Change) (2001), “Third Assessment Report, Working Group II, Climate Change: Impact, Adaptation and Vulnerability” http://www.ipcc.ch/.

IPCC (Intergovernmental Panel on Climate Change) (2007), “Fourth Assessment Report, Working Group II, Climate Change:

Impact, Adaptation and Vulnerability” http://www.ipcc.ch/.

Kaymaz, B., İkiel C (2004), “The Effects of Climatic Conditions on Fruit Production in Geyve (Sakarya)” International Symposium on earth system science Istanbul.

Köksal A.İ. (2002), “Turkish hazelnut cultivars”. Hazelnut Promotion Group, Ankara ISBN: 975-92886-1-3 p 136.

Lobell, D., Field C, Cahill K, Bonfils C (2006), “Impacts of future climate change on California perennial crop yields”. Agric For Meteorol 141:208-218.

Lobell, DB., Kimberley NC (2007), “Historical effects of temperature and precipitation on California crop yields”. Clim. Change 81:187-203.

Mall, RK, Singh R, Gupta A, Srinivasan G, Rathore LS (2007)” Impact of climate change on Indian agriculture: a review” Clim. Change 82:1-2.

Mehlenbacher, SA. (1991), “Hazelnut (Corylus). Genetic resources of temperate fruit and nut crops”. Acta Horticulturae 290-XVII.

Özbek, S. (1978), “Special Orcharding (in Turkish: Özel Meyvecilik)”. Çukurova University Faculty of Agriculture Press 128 Course book: 11 p 486.

Peiris, TSG., Hansen JW, Zubair L., (2008), “Use of seasonal climate information to predict coconut production in Sri Lanka”. Int. J. Climatol 28:103-110.

Ramos, MC., Jones GV, Martinez-Casasnovas JA (2008), “Structure and trends in climate parameters affecting winegrape production in northeast Spain”. Clim Res 38:1-15.

Silva, A.P., Riberio RM, Santos ER, Rosa E (1996), “Blank fruits in Hazelnut (Corylus avellana L.) cv. “Butler”: Characterization and influence of climate”. J. Hort. Sci 71:709-720.

Sneyers, R. 1990. “On the Statistical Analysis of Series of Observations” ,Technical Note No. 143. World Meteorological Organization (WMO): Geneva; 192.

Sun, L., Huilan, L, Ward MN, and Moncunill, DF, (2007), “Climate variability and corn yields in Semiarid Ceará, Brazil”. J Appl Meteorol Climatol 46:226-240.

Szenteleki, K., Ladányi, M, Gaál, M., Zanathy, G., Bısztray, Gy., (2012), “Climatic Risk Factors of Central Hungarian Grape Growing Regions “Applied Ecology and Environmental Research 10(1): 87-105.

Tebaldi, C, Lobell, D.B., (2008), “Towards probabilistic projections of climate change impacts on global crop yields”. Geophys Res Lett 35.

TMARA, (The Turkish Ministry of Agriculture and Rural Affairs) (2007), Hazelnut report Ankara.

TSMS, (Turkish State Meteorological Service) (2008) Accessed 22 Jan. http://www.dmi.gov.tr

TSI, (Turkish Statistical Institute) (2008) Accessed 20 Oct. http://www.tuik.gov.tr

Tous, M.J. (2001), “Hazelnut technology for warm climates”, Proceedings ninth Australasian Conference on trees and nut crops, Perth, Western Australia.

Ustaoglu, Bç, (2010), “The Possible Effects of Climate Change on Hazelnut Farming in Turkey” (Climate change impact assessment, ESF-COST High-Level Research Conference Extreme Environmental Events, 13 - 17 December 2010, Selwyn College, Cambridge, United Kingdom.