The diversity of cultivated crops, kernel element of food security, seems today to be threatened by contemporary worldwide, regional and local agricultural mutations. This study shows that there are thirty seven (37) accessions among which one can find Musa paradisiaca (33), Musa sapientum (03) and Musa nana (01). This sharing does not depends on the ethnic diversity because many ethnic groups share among themselves a great deal of ways of using accessions which number varies between 4 to 26 in function of villages and quarters. The banana tree holds the second rank behind cassava and constitutes an important source of income and a means of food supply for peasants who are the producers. Cocoyam and yam are the most associated crops to banana trees with 48% of accessions that are on the move of disappearing. Among the causes of this disappearing, one can find the long cultural cycle of some accessions, the weak productivity, the height of bunches and fruits that are much reduced and their weakness to sickness. Any ameliorated crop has not been signaled the weak level of instruction and the lack of technical accompaniment are the main obstacles to the management of these resources.
Key words: Musa species, diversity, peasant, management, Pissa and Central African Republic.
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