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MEEC 2019: Riley Thoen’s Photosynthetic Hybrids

Next up from MEEC we have Riley’s poster about the photosynthetic rates of Hybrid plants in exPt7. Riley collected the data for this project in the summer of 2018, and has been working on aggregating and analyzing since then. The central question behind the research: do Echinacea hybrids between E. angustifolia and E pallida have higher photosynthetic rates than conspecifics?

Riley with his poster

Overall (as the title says), Riley found that E. angustifolia may be in trouble if it has to compete with E. pallida. Both the hybrids and conspecific E. pallida plants were more photosynthetically active than E. angustifolia. Additionally, they had higher survival rates. And to put the final nail in the coffin, the only plant that has flowered in exPt7 is an E. pallida plant. All things considered, Riley’s work is crucial to finding out how to protect E. angustifolia from this invasive species!

Click the link bel0w for a full .pdf of Riley’s Poster

echinaceaPoster2_Thoen

Title: Native Echinacea angustifolia has depressed viability relative to non-native E. pallida and reciprocal hybrids (E. angustifolia E. pallida) in a fragmented prairie habitat

Presented at: MEEC 2019 at Indiana State University in Terre Haute, IN

When: April 27th, 2019

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