Even with the supposed protection offered by dormancy against the lack of water, periods of prolonged drought before flowering, still in dormancy, might lead to the formation of abnormal flowers (Huxley and Ismail 1969; Kumar 1979). Abnormal flowers may also be formed if high (Mes1957) or low (Gouveia 1984) temperatures are imposed. Kumar (1979) suggested three types of abnormal flowers based on the premature exposure of the internal parts of the flower, which would cause a reduction in flower setting. The first and the worst case, which would cause up to 80% loss in production, the style and anthers would be exposed.In the second type, that would cause an intermediate loss, up to 40%, part of the style and the tip of the anther would be exposed. Finally, in the less problematic type that would not cause a loss, only the corolla tip would open. In the worst cases, the flowers are almost green, not presenting the white-cream color from normal development during anthesis. Since water deficit might be one of the factors causing the formation of abnormal flowers, irrigation might reduce the frequency at which they appear (Portères 1946).