8:00 AM: Rout, Marnie^*,1, Gough, Laura^*,1, ¹ University of Texas at Arlington, Arlington, TX, Sorghum halepense displaces the common native prairie grass Schizachyruim scoparium: the possible role of allelopathy.

FULL ABSTRACT

8:20 AM: Perry, Laura^*,1, Paschke, Mark¹, Vivanco, Jorge¹, ¹ Center For Rhizosphere Biology, Fort Collins, Colorado, USA, Dual role for an allelochemical: (±)-catechin from Centaurea maculosa root exudates regulates conspecific seedling establishment.

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8:40 AM: Ridneour, Wendy^*,1, Callaway, Ragan¹, ¹ Division of Biological Sciences, Missoula, Montana, USA, Centaurea maculosa from North America are better competitors and better defended than conspecifics from Europe.

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9:00 AM: Falik, Omer^*,1, Novoplansky, Ariel¹, ¹ Ben-Gurion University of the Negev, Beer-Sheva, Israel, Directional self/nonself discrimination in roots.

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9:20 AM: Novoplansky, Ariel¹, ¹ Mitrani Department of Desert Ecology, Institute for Desert Research, Midreshet Ben-Gurion, Israel, Competitive self/nonself discrimination in plants.

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9:40 AM: , BREAK.

9:50 AM: Weidenhamer, Jeffrey^*,1, ¹ Ashland University, Ashland, OH, Measurement of allelochemical dynamics in the rhizosphere.

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10:10 AM: Weston, Leslie^*,1, Bertin, Cecile¹, Yang, Xiaohan¹, Scheffler, Brian², ¹ Cornell University, Ithaca, NY, USA² USDA ARS, Stoneville, MS, USA, The ecology and chemistry of novel allelochemicals in graminaceous root exudates and their potential utilization as bioherbicides or weed suppressive agents.

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10:30 AM: Zeng, Ren-sen¹, ¹ South China Agricultural University, Wushan, Microbial allelopathy in agroecosystems.

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10:50 AM: Mallik, Azim¹, Zeng, Ren-Sen, Walker, Gregg, ¹ Lakehead University, Thunder Bay, Ontario, Canada, Overcoming Kalmia induced allelopathic growth inhibition of black spruce by mycorrhizal inoculation: disagreement between laboratory and field experiments.

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