The type of pollen of the date palm trees could have an effect on the outward and physical characteristics of date fruits, so far to determine its qualitative and quantitative aspects. Therefore , Careful selection of proper pollen for pollination of the date palms is considered of high importance. This research was conducted in order to best pollen source and to study the effects of pollen of five varieties of male trees, from shahdad area on the outward and physical characteristics of joroft Mazafati C.V. For analyzing the results of this experiment a randomized complete block design was implemented for a period of two years from 1991 to 1993. The site of this experiment was Jiroft area in Kerman Province. In this experiment, after pollination , samples of fruit were collected during unripe (Kharak) , semi-ripe, and fully ripe stages of fruit and required information were recorded.Fruit lenght and diameter, seed length and diameter, weigh of fruit , weight of seed , pulp weight , ratio of fruit pulp to seed, ratio of fruit length to diameter, volume of fruit , weight of one full cluster of fruits were measured and finally the time of ripening was recorded. Statistical caclulations, compound variance analysis, and evaluation of treatments by Ducan test indicate that different treatments of pollen have no significant effect on terms of the ratio of fruit pulp to seed and the ratio of fruit lenght to diameter. But they exert a significant effect of the other outward and physici1 characteristics of the fruit , and the differences from statistical Point of view are considerable.The surce of pollen are effective on the ripening time of the fruit and this difference ranges from 15 to 25 days for different treatments, which is important from early ripening point of view of the product.
)