Table of Contents Another slide show Pollination Ecology Home

Monitoring commercial seed fields: Methods


Weekly counts of open flowers, tripped flowers, bracts


along 3m transects 25, 50 and 100m from bee shelters


9 bee shelters in 7 fields near Parma, Idaho, USA

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Slide 9 of 21

We began to understand the relationship between standing crop and rate of pollination after monitoring bloom and pollination in commercial seed fields over the season.
We counted buds, open flowers, tripped flowers and bracts each week. Bracts are small hairs at the base of each flower. If all flowers and pods are removed from a raceme stem, the bracts can be counted to determine how many flowers bloomed on the raceme.