The Pollinating Fauna Of The Bean Vicia Faba L And The Quantitative And Qualitative Performance Role Of The Plant In The Region Of Mila (east Of Algeria)

Résumé: The bean is a protein plant cultivated in Algeria, with an economic and nutritional importance. The study was conducted in the Mila region in March-April 2019 and 2020. The results indicate the presence of ten forager bean species with the dominance of two species, Honeybee Apis mellifera and Wild bee Eucera numida. All Eucera numida visits are positive because Eucera numida is automatically more adapted due to the long (long-tongued bee) length. However, most Honey bee Apis mellifera visits are negative (non-pollinating) due to his short tongue, leading to stealing the nectar from the holes drilled by bumblebees. Depending on foraging speed, Eucera numida is the faster species. It visits ten flowers per minute on average. Concerning the number of pollen seeds filled by abandoned foragers on the bean flowers, Eucera numida filled 93 on average, and Apis mellifera filled 69 seeds. Other parameters were studied during the research period. The quantitative and qualitative performance was determined after the seed recuperation. The results show that the obtained performance by the free access flowers of insects is clearly improved compared to the bagged flowers. Thus, the insects perform a paramount role in the Vicia faba pollinating.

Publié dans la revue: AGROBIOLOGIA