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Abstract Detail

Pollination Biology

Krosnick, Shawn Elizabeth [1], Cooper, Toby [2].

Preliminary studies of reproductive biology in Passiflora incarnata L. (Passifloraceae) in Middle Tennessee.

Passiflora incarnata is a flowering vine commonly encountered along roadsides and abandoned fields throughout the southeastern United States. While it has a broad distribution, its reproductive biology has only been studied in Virginia and Florida. In the present study, populations in Middle Tennessee were examined to determine the diversity and behavior of pollinators associated with this species. Mode and frequency of andromonoecy, the relationship between fruit set and floral gender, and the degree of self-incompatibility were investigated. Carpenter bees were found to be the primary floral visitors. Andromonecy was observed in all populations, with bisexual flowers more common than male flowers. Bees also visited bisexual flowers for greater lengths of time than male flowers. Prior fruit set on an individual vine was not associated with later development of either male or bisexual flowers. The presence of flowers was positively associated with the absence of mature fruit elsewhere on the vine. Studies on the extent of self-compatibility and autogamy present in P. incarnata are currently underway.

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1 - Tennessee Tech University, Dept. of Biology, 1100 North Dixie, Cookeville, TN, 38505, USA
2 - Tennessee Tech University, Dept. of Biology, 1100 North Dixie Avenue, Cookeville, TN, 38505, USA

Passiflora incarnata

Presentation Type: Oral Paper
Session: 36, Pollination Biology
Location: 203/Savannah International Trade and Convention Center
Date: Wednesday, August 3rd, 2016
Time: 8:00 AM
Number: 36001
Abstract ID:476
Candidate for Awards:None

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