Effect of climate change on the phenology of "Bidaneh Sefid" table grape variety in West Azerbaijan province

Document Type : Original Article

Authors

1 Assistant Professor, Department of Water Engineering, Faculty of Agriculture, Urmia University, Urmia, Iran

2 Meteorology Expert of Agricultural Meteorology Research Agency, Meteorological Administration of West Azerbaijan Province, Iran

3 Associate Professor, Horticulture Crops Research Department, Research and Education Center of Kurdistan, Agricultural and Natural Resources Research Center, AREEO, Sanandaj, Iran

Abstract

Increasing temperature in recent years has led to changes in plants development cycle and the projections of Intergovernmental Panel on Climate Change (IPCC) implies significant increase of temperature by century 21. Table grape, as one of the most important crops in the world, is a greatly sensitive crop to temperature changes. Thus, assessing the response of grape phenology to temperature changes provides a suitable field for evaluating the varieties and adopting better decisions toward adaptation strategies for climate change. In this study, the phonological responses of the “Bidaneh Sefid” grape variety to temperature increase under RCP8.5 scenario was assessed in West Azerbaijan province. The comparison of the phenological phases occurrence during two future periods of 2021-2050 and 2071-2100 with historical period of 1976-2005 reveals the decrease in the phonological intervals. Moreover, the growing season length in short and long term future will decrease about 10 and 40 days in comparison with the historical period. According to the differences of grape varieties in response to the temperature changes and also different affectability of diverse microclimates from global warming, assessing the simultaneous contribution of grape varieties and microclimates is recommended for the future studies in this province.

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