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Sunflower Phenology Observations Collected by Great Sunflower Project Participants, 2009
Abstract:
These data are phenology observations of sunflower (Helianthus annuus) taken by participants in the Great Sunflower Project. For observation protocols, see: http://www.usanpn.org/monitoring-partners. For more information, please visit www.greatsunflower.org.
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