Abstract
This experiment was carried out during the growing season of 2004 – 2005 Horticulture research fields, Agriculture and Forestry College, Mosul University to evaluate five faba bean cultivars for supplementary irrigations through applying supplementary irrigation whenever 25, 50 or 75% of soil AWC is depleted to a soil depth of 25 cm. The results revealed that supplementary irrigations should be applied whenever 25% of soil AWC is depleted to achieve optimal yield. Responses of the five tested cultivars could be categorized according to their performance under adequate and inadequate moisture availabilities as in the following sequence order : Local Syrian > Aqudulce > Towaytha > Babylon > Taka357. The disability of Taka357 in racing its corresponding cultivars under both adequate and inadequate moisture of soils , and therefore implying this cultivar in production was not worthy.
