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Sugar mass per floret according to the F1 hybrid cultivar (coded name from 1 to 34 for the results of this present study). The data of Vear et al. (1990) and Ion et al. (2007) on the left are displayed for comparison. The nectar was extracted with microcapillary tubes in staminate florets of F1 hybrids in Vear et al. (1990), as in our study, or in florets of unspecified stage in Ion et al. (2007).
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