Oral Session #61: Plant Responses to Nutrients.

Presiding: P.J. Sinton, Colorado State University.
Wednesday, August 9, 2000
8:00 AM to 11:30 AM
Cottonwood Room IV - Sports Event Center

8:00 AM	The role of soil amino acids in the structure and functioning of upland grassland swards in Great Britain. NETTLETON, T.K. , W.D. DAVIES, J.S. RODWELL
8:15 AM	Differential utilization of N by co-occurring alpine tundra species: Field and greenhouse evidence. MILLER, A.E. , W.D. BOWMAN
8:30 AM	Modeling plant competition for soil nutrients. LEADLEY, P.
8:45 AM	SIR microscopic visualization of legume root responses to low-phosphorus. RAAB, T.K. , M.C. MARTIN
9:00 AM	Species-specific responses of tall-grass prairie legumes to nitrogen addition. BASSIRIRAD, H. , D. NYBERG
9:15 AM	Effects of a nitrogen and competition gradient on the growth of an exotic invasive annual and a slow-growing native perennial. LOWE, P.N. , W.K. LAUENROTH, I.C. BURKE
9:30 AM	Physiological and demographic response of the desert perennial, Cryptantha flava, to simulated Mule deer excretions. PEEK, M.S , I.N FORSETH
9:45 AM	Nutrient resorption in shrubs growing by design, and by default along a Chihuahuan Desert arroyo. KILLINGBECK, K.T. , W.G. WHITFORD
10:00 AM	Break
10:15 AM	Calcium uptake from different soil depths explains chemical differences between surface soils under sugar maple or ash and under hemlock. DIJKSTRA, F.
10:30 AM	Biotic control of calcium decline in forest soils. HAMBURG, S.P. , R.D. YANAI, M.A. ARTHUR
10:45 AM	Foliar nutrient contents and concentrations and their relation to stem volume growth in Pinus taeda L. and Pinus elliottii Engelm. stands of differing densities. BARRON, G.A. , R.E. WILL, R.O. TESKEY
11:00 AM	Simultaneous optimization of canopy nitrogen and water use. BUCKLEY, T.N. , J.M. MILLER, G.D. FARQUHAR
11:15 AM	Maternal effects and heritability of host preference in a hemiparasitic plant. ADLER, L.S. , J.I. YODER