Fortune Citrus sp. Hybridní mandarina
'Fortune' is a very late, extremely fertile variety that is cultivated mostly in Spain. It is a cross of Celmentine tangerine 'Fina' ('Algerian') and tangerine 'Dancy' bred in California by J. R. Furre between 1948 and 1964. It was named after an English botanist from the 19th century, Robert Fortune.
'Fortune' is a very vigorous tree that grows to average heights. It has wide and dense crown made of long, overhanging branches. Its broad dark green leaves shade the fruit from sun and cold. This cultivar is very adaptive; it has problems with sudden temperature changes
but is used to desert conditions (which is important mainly in California and Arizona). It has some spikes, but they can disappear as the tree matures. What might pose a great problem are very fragile branches. They can easily be knocked down by a strong wind or storm. Small flowers soon change into small or average (5-7cm), flattened fruit that weighs in average 85g, but the largest pieces can be as heavy as 90-130g (it resembles Unshiu tangerine fruit). Its rind is intensively orange, quite thin (2-3 mm), slightly pebbled and very well attached to the flesh. It isn't really difficult to peel the fruit, and that's why it can be so easily damaged even before ripening on the tree. The orange fruit's pulp is tasty, contains lots of sugars, but even fully ripe fruit has some acids (therefore it is wise to wait until the fruit has fully ripened before harvest). There is a significant amount of juices in the fruit (up to 59%) and lots of sugars (13%). The pulp is usually divided into 12 segments and contains only very few seeds (if it is pollinated by another variety, there can be 15-22 seeds inside the fruit). 'Fortune' requires hot climatical conditions and fertile soils. Low temperatures and high relative humidity cause lesser quality (pitting...). The fruit tends to remain smaller, even after the unfitting, small, slowly developing or otherwise insufficient fruit is removed. 'Fortune' usually ripens in Spain around from April and the fruit muse be cut off the tree, not just collected. The quality of the ripe fruit hanging on the tree gets worse the more the fruit hangs there. It is necessary to use giberelin. The fruit can even rot on the tree, to suppress this negative effect farmers usually use the rootstock 'Volkameriana' (there are less juices in the fruit). Fruit should be at any time well protected by the leaves!