Paper Title
Assessment Of The Response Of Potato Varieties To Ecological Conditions In North Iraq

Abstract
The ecological conditions in north Iraq are suitable for potato cropping due to moderate climate; rainfall, suitable temperature, fertile soil , water availability and farmers skills. Potato is considered an important global food crop. So it is important to improve production and quality by; by selection of suitable and high productive varieties and usage of modern technology, such as irrigation and fertilization techniques to increase yield. This study was performed as a field experiment in two regions; Khazir and Kalakchi in north Iraq. Three varieties from Netherland were used these are: Laperla, Lanorma and Actrice. The results showed; that the Khazir region; produced the highest tuber number 113110 / dunum, total tuber weight 14.2959 tons / d and higher yield 14.2959 tons/d compared with 11.4513 tons/d in the Kalakh region, Laperla variety was significantly superior in yield which reached 15.8103 tons/d, while the lanorma variety gave 13.5440 tons/d and at last the Actrice variety which gave 9.2662 tons/d, the interaction between regions and varieties gave the highest yield (khazir+Laperla) which reached 16.7330 tons/d while the same variety yielded 14.8883 tons/d. Key words - Potato, Response, Laperla, Lanorma, Actrice, Iraq.