Abstract：
:Honeybee-plant relationships are based on a conditioning process in which olfactory (plant aroma) and gustatory cues (mainly nectars) are closely linked, leading to a selective foraging behaviour. Among crops dependent upon entomophilous cross-pollination, the sunflower has recently undergone extensive expansion due to hybrid variety selection. Sunflower hybrid seed production is strictly dependent upon pollinating insects, mainly the honeybees, but foragers may have preferences among the parental lines, leading to a lack of pollen carriage and consequently to a decrease of hybrid seed yield. In order to define the role of plant chemicals (aromas, nectars) involved in the pollination process, we set up a study combining behavioural and chemical assays. It appears that even though volatile chemical blends are much more complex compared to glucidic blends, for both kinds of cues only a 'limited chemical pattern' is responsible for foragers' choices. Therefore, it is henceforth possible to take these molecular criteria into account for plant improvement.
journal_name
Biochimiejournal_title
Biochimieauthors
Pham-Delegue MH,Etievant P,Masson Cdoi
10.1016/0300-9084(87)90186-6subject
Has Abstractpub_date
1987-06-01 00:00:00pages
661-70issue
6-7eissn
0300-9084issn
1638-6183pii
0300-9084(87)90186-6journal_volume
69pub_type
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