Research Article
Several New Aspects of the Foraging Behavior of Osmia cornifrons in an Apple Orchard
Table 1
Fruit set of “Fuji” fruit formed by open-pollination.
| Flower morphology | Year | No. of flowers | No. of fruits | Rate of fruit set (mean S.E.%) | No. of seeds/fruit (mean S.E.%) |
| Anthers | 2007 | 21 | 18 | 85.7 | 8.2 | removed | 2007 | 20 | 15 | 75.0 | 9.7 | | 2008 | 20 | 15 | 75.0 | 8.5 | | 2008 | 20 | 15 | 75.0 | 8.9 | | 2007-2008 | | | 77.7 2.7 | 8.8 0.7 | Petals | 2007 | 21 | 14 | 66.7 | 7.7 | removed | 2007 | 20 | 9 | 45.0 | 8.7 | | 2008 | 20 | 10 | 50.0 | 6.3 | | 2008 | 20 | 13 | 65.0 | 5.5 | | 2007-2008 | | | 56.7 5.4 | 7.1 0.7 | Anthers and | 2007 | 20 | 13 | 65.0 | 7.1 | petals | 2007 | 20 | 5 | 25.0 | 5.8 | removed | 2008 | 20 | 4 | 20.0 | 5.0 | | 2008 | 20 | 4 | 20.0 | 3.8 | | 2007-2008 | | | 32.5 10.9 | 5.4 0.7 | Untreated | 2007 | 21 | 21 | 100.0 | 8.2 | | 2007 | 20 | 18 | 90.0 | 8.9 | | 2008 | 20 | 17 | 85.0 | 10.2 | | 2008 | 20 | 20 | 100.0 | 9.0 | | 2007-2008 | | | 93.8 3.8 | 9.1 0.4 |
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