Photosynthesis Research

, Volume 23, Issue 2, pp 171–180 | Cite as

Elevated atmospheric partial pressure of CO2 and plant growth

II. Non-structural carbohydrate content in cotton plants and its effect on growth parameters
  • Suan-Chin Wong
Regular Paper


Cotton plants were grown in late spring under full sunlight in glasshouses containing normal ambient partial pressure of CO2 (32±2Pa) and enriched partial pressure of CO2 (64±1.5Pa) and at four levels of nitrogen nutrition. Thirty-five days after planting, the total dry weights of high CO2-grown plants were 2- to 3.5-fold greater than plants grown in normal ambient CO2 partial pressure. Depending on nitrogen nutrition level, non-structural carbohydrate content (mainly starch) in the leaves of plants grown in normal CO2 was between 4 and 37% of the total leaf dry weight compared to 39 to 52% in the leaves of high CO2-grown plants. Specific leaf weight calculated using total dry weight was 1.6- to 2-fold greater than that based on structural dry weight. In high CO2-grown plants the amount of non-structural carbohydrate translocated from the leaves at night was between 10 and 20% of the level at the end of the photoperiod. This suggests that the plant was unable to utilize all the carbohydrate it assimilated in elevated CO2 atmosphere. While there was a 1.5-fold enhancement in the rate of CO2 assimilation in plants grown in 64 Pa CO2, there was, however, some evidence to suggest that the activities of other metabolic pathways in the plants were not stimulated to the same extent by the enriched CO2 atmosphere. This resulted in massive accumulation of non-structural carbohydrate, particularly at low level of nitrogen nutrition.

Key words

CO2 enriched atmosphere nitrogen nutrition cotton plants non-structural carbohydrate content growth analysis 



rate of CO2 assimilation


photosynthetic photo flux density


net assimilation rate


partial pressure of CO2


relative growth rate


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  1. Bishop PM and Whittingham CP (1968) The photosynthesis of tomato plants in a carbon dioxide enriched atmosphere. Photosynthetica 2: 31–38Google Scholar
  2. Cave G, Tolley LC and Strain BR (1981) Effect of carbon dioxide enrichment on chlorophyll content, starch content and starch grain structure in Trifolium subterraneum leaves. Physiol Plant 51: 171–174Google Scholar
  3. Cooper RL and Brun WA (1967) Response of soybeans to a carbon dioxide-enriched atmosphere. Crop Sci 7: 455–457Google Scholar
  4. Hewett EJ (1966) Sand and water culture methods used in the study of plant nutrition, p. 431. Commonwealth Agricultural Bureaux, Farnham RoyalGoogle Scholar
  5. Hicklenton PR and Jolliffe PA (1980) Alteration in the physiology of CO2 exchange in tomato plants grown in CO2-enriched atmospheres. Can J Bot 58: 2181–2189Google Scholar
  6. Hofstra G and Hesketh JD (1975) The effects of temperature and CO2 enrichment on photosynthesis in soybean. In: Marcelle R (ed) Environmental and biological control of photosynthesis, pp. 71–80, The Hague: Dr. W Junk PublishersGoogle Scholar
  7. Hurd RG (1968) Effects of CO2-enrichment on the growth of young tomato plants in low light. Ann Bot 32: 531–542Google Scholar
  8. Imai K and Murata Y (1976) Effect of carbon dioxide concentration on growth and dry matter production of crop plants. I. Effects on leaf area, dry matter, tillering, dry matter distribution ratio and transpiration. Proc Crop Sci Japan 45: 598–606Google Scholar
  9. Jones MGK, Outlaw WH and Lowry OH (1977) Enzymic assay of 10-7 to 10-14 moles of sucrose in plant tissue. Plant Physiol 60: 379–383Google Scholar
  10. Kriedemann PE and Wong SC (1984) Growth response and photosynthetic acclimation to CO2: Comparative behaviour in two C3 crop species. Acta Horticulturae 162: 113–120Google Scholar
  11. Madsen E (1968) Effect of CO2-concentration on the accumulation of starch and sugar in tomato leaves. Physiol Plant 21: 168–175Google Scholar
  12. Mauney JR, Quinn G, Fry KE and Hesketh JD (1979) Correlation of photosynthetic carbon dioxide uptake and carbohydrate accumulation in cotton, soybean, sunflower and sorghum. Photosynthetica 13: 260–266Google Scholar
  13. Sionit N, Hellmers H and Strain BR (1982) Interaction of atmospheric CO2 enrichment and irradiance on plant growth. Agron J. 74: 721–725Google Scholar
  14. Tognoni F, Halvey AH and Wittwer SH (1967) Growth of bean and tomato plants as affected by root absorbed growth substances and atmospheric carbon dioxide. Planta 72: 43–52Google Scholar
  15. Vu CV, Allen LH and Bowes G (1983) Effects of light and elevated CO2 on the RuBP carboxylase activity and RuBP level of soybean leaves. Plant Physiol 73: 729–734Google Scholar
  16. Wong SC (1979) Elevated atmospheric partial pressure of CO2 and plant growth. I. Interactions of nitrogen nutrition and photosynthetic capacity in C3 and C4 plants. Oecologia (Berl.) 44: 68–74Google Scholar

Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • Suan-Chin Wong
    • 1
  1. 1.Plant Environmental Biology Group, Research School of Biological SciencesAustralian National UniversityCanberraAustralia

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