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In sexually reproducing cultivated crops, the rproductive system varies from - obligate cross fertilization to almost complete selfing . Some changes in percent of self— or cross- fertilization are expected for different cultivars or even for a — specific cultivar under different enviromental conditions. An experiment was conducted to estimate the percentage of crossfertilization in gram ( Cicer aretinum L.) which is a naturally self fertilized crop. Two pure lines of gram, one with purple - and the other with whi te flowers were used in this study . Seeds of these two - pure lines were mixed in different proportions and a sample of each mixture was planted in the field in spring 1351. White- and purple - flowered plants were labelled at flowering and seeds of white — flowered plants were harvested for further study The harvested seeds were planted separately in spring 1973 and the number of hybrids and total plants were counted for each separate Plot. The following results were obtained . 1). Almost complete self - fertilization is the rule in gram and percent of cross fertilization is less than one percent. 2). Different amount of out - crossing observed in different plots (0 to 1. 16 percrnt ) can be partly due to different environmental condition