TY - JOUR
AU1 - Carter, D.
AU2 - Peterson,  K.
AB - Festuca elatior L., C 3 , and Sorghum halepense (L.) Persoon, C 4 , were grown in mixed and unmixed cultures under 350 and 600 ppm CO 2 for 112 days. High CO 2 levels stimulated increases of total dry weight and leaf surface area in Festuca despite unfavorably high temperatures. In Sorghum , delay of leaf senescence and of floral initiation was attributed to high CO 2 concentrations. Growth of unmixed cultures of Sorghum under 600 ppm CO 2 was relatively poor because of an apparent interaction of high CO 2 with self-shading. All instances of culturexCO 2 interactions are offered in supported of the hypothesis that elevated CO 2 levels will effect the competitive interaction of C 3 and C 4 species. Peak net assimilation rates of C 3 and C 4 plants were seasonally separated at 350 ppm CO 2 but coincided at 600 ppm. Based on our observations of Festuca and Sorghum , we project that global CO 2 enrichment may alter competitive balance between C 3 and C 4 plants and subsequently affect seasonal niche separation, species distribution patterns, and net primary production within mixed communities.
TI - Effects of a CO 2 -enriched atmosphere on the growth and competitive interaction of a C 3 and a C 4 grass
JF - Oecologia
DO - 10.1007/BF00399215
DA - 1983-05-01
UR - https://www.deepdyve.com/lp/springer-journals/effects-of-a-co-2-enriched-atmosphere-on-the-growth-and-competitive-Q1XH1MNbpB
SP - 188
EP - 193
VL - 58
IS - 2
DP - DeepDyve
ER -