Tomato hybrid cultivars were extensively used in commercial production since tomato growers prefer to grow their hybrids in order to maximize the net return, since, the hybrids are usually known to be characterized by high yield and good quality as well as many other attractive traits. The hybrid cultivar is, usually, produced through the crossing of two, or more, inbred lines or cultivars. It is necessary to tomato breeders to test and evaluate the ability of a great numbers of cultivars and inbred lines to be combined and select those which can combine well with others to produce good...