Determination of Effective Heat Summation Requirements of Local Grape Cultivars Grown in Idil Ecology

This study were carried out in the Misab？k, Tayifi, Zeynebi, Ra？e Gurnik, Payizi, Sinceri, Bilbizeki, Bakari, Kerkü？, Zerine, Gawre, Ra？ekewnar, Bahdo, Beytilhamam, Goglani, Hasani, Mazrona, Nasiri, ？ikari, Zeyti local grape varieties grown in viticultural area of ？dil district of Sirnak province in 2017 and 2018. At the end of the research, Effective Head Summation (EHS) values were determined as 1837 degree-days (Misab？k)-2942 degree-days (Mazrone) between the bud breaking-ripening periods, while the vegetation period was between 126 days (Misab？k)-170 days (Mazrone). The EHS values were varied according to year and variety. As a result; Idil ecology, which is classified as hot climate, has been found to be highly suitable for high value late table grapes and dried grape varieties. While proposing about grape varieties with high commercial value that can be grown in Sirnak province, the right varieties can be selected with the suggestion of grape varieties close to the EHS values determined as a result of the research