The work was carried out in Ecologie Végétale, Université de Paris-Sud, Centre d'Orsay, France.
Carbon dioxide enrichment reduces shoot growth in sweet chestnut seedlings (Castanea sativa Mill.)*
Article first published online: 28 APR 2006
Plant, Cell & Environment
Volume 12, Issue 9, pages 927–934, December 1989
How to Cite
MOUSSEAU, M. and ENOCH, H. Z. (1989), Carbon dioxide enrichment reduces shoot growth in sweet chestnut seedlings (Castanea sativa Mill.). Plant, Cell & Environment, 12: 927–934. doi: 10.1111/j.1365-3040.1989.tb01972.x
- Issue published online: 28 APR 2006
- Article first published online: 28 APR 2006
- Received 1 May 1989; received in revised form 15 June 1989; accepted for publication 16 June 1989
- CO2 enrichment;
- dry matter distribution;
- root-to-shoot ratio;
- sweet chestnut
Abstract. Two-year-old potted sweet chestnut seedlings were grown at 350 ppm CO2 and 700 ppm, day and night in constantly ventilated tunnels during two full growing seasons, near Paris, France (48° N, 2° E). Enrichment with CO2 caused an unusual shoot growth response. After the end of July, stem elongation ceased in 62% of the CO2 enriched plants as compared with 37% in the control. The leaves of CO2-enriched seedlings showed early senescence, indicated by premature yellowing and a decrease in chlorophyll content. This was associated with nutrient dilution brought about by the rapid growth of these trees. The increase in total dry weight of the CO2-enriched seedlings was essentially the result of increase in the root dry weight (69%). Shoot weight decreased by 22% relative to the control. Total leaf area per enriched plant was 25% smaller than the control. This unusual pattern of growth and carbon allocation of the CO2 treated Chestnut trees emphasizes the concept of a response specificity within trees to an increase of atmospheric CO2.