Photosynthetica, 2008 (vol. 46), issue 2

Photosynthetica 2008, 46(2):216 | DOI: 10.1007/s11099-008-0035-7

Photosynthetic photon flux density, carbon dioxide concentration, and vapor pressure deficit effects on photosynthesis in cacao seedlings

V. C. Baligar1,*, J. A. Bunce2, R. C. R. Machado3, M. K. Elson1
1 USDA-ARS-Sustainable Perennial Crops Laboratory, Beltsville, USA
2 USDA-ARS Crop Systems and Global Change Laboratory, Beltsville, USA
3 Mars Center for Cacao Science, Almirante, Itajuipe Bahia, Brazil

Independent short-term effects of photosynthetic photon flux density (PPFD) of 50-400 µmol m-2 s-1, external CO2 concentration (C a) of 85-850 cm3 m-3, and vapor pressure deficit (VPD) of 0.9-2.2 kPa on net photosynthetic rate (P N), stomatal conductance (g s), leaf internal CO2 concentration (C i), and transpiration rates (E) were investigated in three cacao genotypes. In all these genotypes, increasing PPFD from 50 to 400 µmol m-2 s-1 increased P N by about 50 %, but further increases in PPFD up to 1 500 µmol m-2 s-1 had no effect on P N. Increasing C a significantly increased P N and C i while g s and E decreased more strongly than in most trees that have been studied. In all genotypes, increasing VPD reduced P N, but the slight decrease in g s and the slight increase in C i with increasing VPD were non-significant. Increasing VPD significantly increased E and this may have caused the reduction in P N. The unusually small response of g s to VPD could limit the ability of cacao to grow where VPD is high. There were no significant differences in gas exchange characteristics (g s, C i, E) among the three cacao genotypes under any measurement conditions.

Keywords: leaf internal CO2 concentration; net photosynthesis; stomatal conductance; Theobroma cacao; transpiration rate

Received: August 31, 2007; Accepted: December 17, 2007; Published: June 1, 2008Show citation

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Baligar, V.C., Bunce, J.A., Machado, R.C.R., & Elson, M.K. (2008). Photosynthetic photon flux density, carbon dioxide concentration, and vapor pressure deficit effects on photosynthesis in cacao seedlings. Photosynthetica, 46(2), 216. doi: 10.1007/s11099-008-0035-7.
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    References

    1. Ahenkorah, Y., Akrofi, G.S., Adri, A.K.: The end of the first cacao shade and manurial experiment at the Cocoa Research Institute of Ghana.-J. hort. Sci. 49: 43-51, 1974. Go to original source...
    2. Baligar, V.C., Bunce, J.A., Bailey, B.A., Machado, R.C., Pomella, W.V.: Carbon dioxide and photosynthetic photon flux density effects on growth and mineral uptake of cacao.-J. Food Agr. Environ. 3: 142-147, 2005.
    3. Balasimha, D.: Stomatal conductance and photosynthesis in cocoa trees.-Plant Physiol. Biochem. 20: 16-18, 1993.
    4. Balasimha, D., Daniel, E.V., Bhat, P.G.: Influence of environmental factors on photosynthesis in cocoa trees.-Agr. Forest Metereol. 55: 15-21, 1991. Go to original source...
    5. Bastid, P., Jimmy, I.: Gas transfer measurements on young cocoa trees in field and modeling of photosynthetic activity.-In: 14th Inter. Cocoa Res. Conf. Pp. 195-203. Accra 2003.
    6. Bolin, B.: The Kyoto negotiation on climate change: a science perspective.-Science 279: 330-331, 1998. Go to original source...
    7. Bunce, J.A.: Effects of doubled atmospheric carbon dioxide concentration on the responses of assimilation and conductance to humidity.-Plant Cell Environ. 16: 189-197, 1993. Go to original source...
    8. Cure, J.D., Acock, B.: Crop responses to carbon dioxide doubling: a literature survey.-Agr. Forest Meteorol. 38: 127-145, 1986. Go to original source...
    9. Curtis, P.S., Wang, X.Z.: A meta-analysis of elevated CO2 effects on woody plant mass, form and physiology.-Oecologia 113: 299-313, 1998. Go to original source...
    10. Daymond, A.J., Hadley, P.: The effects of temperature and light integral on early vegetative growth and chlorophyll fluorescence of four contrasting genotypes of cacao (Theobroma cacao).-Ann. appl. Biol. 145: 257-262, 2004. Go to original source...
    11. Daymond, A.J., Hadley, P., Machado, R.C.R., Ng, E.: Canopy characteristics of contrasting clones of cacao (Theobroma cacao L).-Exp. Agr. 38: 359-367, 2002a. Go to original source...
    12. Daymond, A.J., Hadley, P., Machado, R.C.R., Ng, E.: Genetic variability in partitioning to the yield component of cacao (Theobroma cacao L.).-HortScience 37: 799-801, 2002b. Go to original source...
    13. Eamus, D.: The interaction of rising CO2 and temperatures with water use efficiency.-Plant Cell Environ. 14: 843-852, 1991. Go to original source...
    14. Fanjul, L., Arreola-Rodriguez, R., Mendez-Castrejon, M.P.: Stomatal responses to environmental variables in shade and sun grown coffee plants in Mexico.-Exp. Agr. 21: 249-258, 1985. Go to original source...
    15. Franks, P.J., Farquhar, G.D.: A relationship between humidity response, growth form and photosynthetic operating point in C3 plants.-Plant Cell Environ. 22: 1337-1349, 1999. Go to original source...
    16. Galyuon, I.K.A., McDavid, C.R., Lopez, F.B., Spence, J.A.: The effect of irradiance level on cocoa (Theobroma cacao L): I. Growth and leaf adaptations.-Trop. Agric. (Trinidad) 73: 23-28, 1996a.
    17. Galyuon, I.K.A., McDavid, C.R., Lopez, F.B., Spence, J.A.: The effect of irradiance level on cocoa (Theobroma cacao L.): II. Gas exchange and chlorophyll fluorescence.-Trop. Agr. (Trinidad) 73: 29-33, 1996b.
    18. Hutcheon, W.V.: Breeding for tolerance of exposure and the ability to respond to increased radiation.-Rep. Cocoa Res. Inst. Ghana 1971-1972: 203-204, 1973.
    19. Hutcheon, W.V.: Photosynthesis of cocoa: Photosynthesis in relation to the light and plant nutrient status.-Rep. Cocoa Res. Inst. Ghana 1973-1974: 186-188, 1976.
    20. International Cocoa Germplasm Database (http://www.icgd.rdg.ac.uk)-The University of Reading, Reading 2006.
    21. Jones, H.G.: Plants and Microclimate.-Pp. 130-169. Cambridge University Press, Cambridge-London-New York-New Rochelle-Melbourne-Sydney 1983.
    22. Kimball, B.A., Kobayashi, K., Bindi, M.: Response of agricultural crops to free-air CO2 enrichment.-Adv. Agron. 77: 293-368, 2002. Go to original source...
    23. Kirschbaum, M.U.F., Pearcy, R.W.: Gas exchange analysis of the relative importance of stomatal and biochemical factors in photosynthetic induction in Alocasia macrorrhiza.-Plant Physiol. 86: 782-785, 1988. Go to original source...
    24. Kumar, D., Tieszen, L.L.: Photosynthesis in Coffea arabica L. Effects of light and temperature.-Exp. Agr. 16: 13-19, 1980. Go to original source...
    25. Lanaud, C., Motamayor, J.C., Risterucci, A.M.: Implications of new insight into the genetic structure of Theobroma cacao L. for breeding strategies.-In: Bekele, F., End, M., Eskes, A.B. (ed.): Proceeding of the International Workshop on New Technologies and Cacao Breeding. Pp. 89-107. Kota Kinabalu, Sabah 2001. [htpp://www.koko.gov.my/CacaoBioTech/ING_Workshop(89-97).html] INGENIC Press, Malaysia 2001.
    26. Lemee, G.: Influence of irrigation and shade on water economy and photosynthesis in cacao.-Agron. Tropics 10: 592-603, 1955.
    27. Liang, N., Tang, Y., Okuda, T.: Is elevation of carbon dioxide concentration beneficial to seedling photosynthesis in the understory of tropical rain forests?-Tree Physiol. 21: 1047-1055, 2001. Go to original source...
    28. Lodge, R.J., Dijkstra, P., Drake, B.G., Morison, J.I.L.: Stomatal acclimation to increased CO2 concentration in a Florida scrub oak species Quercus myrtifolia Willd.-Plant Cell Environ. 24: 77-88, 2001. Go to original source...
    29. Medlyn, B.E., Barton, C.V.M., Broadmeadow, M.S.J., Ceulemans, R., De Angelis, P., Forstreuter, M., Freeman, M., Jackson, S.B., Kellomäki, S., Laitat, E., Rey, A., Roberntz, P., Sigurdsson, B.D., Strassmeyer, J., Wang, K., Curtis, P.S., Jarvis, P.G.: Stomatal conductance of forest species after long-term exposure to elevated CO2 concentration: a synthesis.-New Phytol. 149: 247-264, 2001. Go to original source...
    30. Miyaji, K.I., Da Silva, W.S., Alvim, P. de T.: Longevity of leaves of a tropical tree, Theobroma cacao, grown under shading, in relation to position within the canopy and time of emergency.-New Phytol. 135: 445-454, 1997. Go to original source...
    31. Morison, J.I.L., Gifford, R.M.: Stomatal sensitivity to carbon dioxide and humidity. A comparison to two C3 and two C4 grass species.-Plant Physiol. 71: 789-796, 1983. Go to original source...
    32. Okali, D.U.U., Owusu, J.K.: Growth analysis and photosynthetic rates of cocoa (Theobroma cacao) seedlings in relation to varying shade and nutrient regimes.-Ghana J. agr. Sci. 8: 51-67, 1975.
    33. Pound, F.J.: A note on the cocoa population of South America.-In: Report and Proceedings of the Cocoa Research Conference, London, Colonial Office, May-June 1945. Pp. 131-133. The Colonial Office, His Majesty's Stationary Office, London 1945.
    34. Prentice, I.C., Farquhar, G.D., Fasham, M.J.R., Goulden, M.L., Heinmann, M., Jaramillo, V.J., Kheshgi, H.S., Le Quéré, C., Scholes, R.J., Wallace, D.W.R.: The carbon cycle and atmospheric carbon dioxide.-In: Houghton, J.T., Ding, Y., Griggs, D.J., Noguer, M., van der Linden, P.J., Dai, X., Maskell, K., Johnson, C.A. (ed.): Climatic Change 2001: The Scientific Basis. Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climatic Change. Pp. 183-238. Cambridge University Press, Cambridge 2001.
    35. Raja Harun, R.M., Hardwick, K.: The effects of prolonged exposure to different light intensities on the photosynthesis of cocoa leaves.-In: 10th Inter. Cocoa Res. Conf. Pp. 205-209, Santo Domingo 1988.
    36. Raja Harun, R.M., Kamariah, H.: The effects of shading regimes on the growth of cocoa seedlings (Theobroma cacao L.).-Pertunika 6: 1-5, 1983.
    37. Rena, A.B., Barros, R.S., Maestri, M., Sondahl, M.R.: Coffee.-In: Schaffer, B., Anderson, P.C. (ed.): Handbook of Environmental Physiology of Fruit Crops. Vol. II. Pp. 101-122. CRC Press, Boca Raton 1994.
    38. Serrano, P., Biehl, B.: The effect of light luminous stress on the cocoa plant: Fluorometric measurements under experimental (laboratory) conditions and in the field.-In: 12th Inter. Cocoa Res. Conf. Pp. 581-588. Salvador 1999.
    39. Sharkey, T.D.: Transpiration-induced changes in the photosynthetic capacity of leaves.-Planta 160: 143-150, 1984. Go to original source...
    40. Wood, G.A.R., Lass, R.A.: Cocoa. 4th Ed.-Blackwell Science, Oxford 2001. Go to original source...
    41. Wong, S.C.: Elevated atmospheric partial pressure of CO2 and plant growth. I. Interactions of nitrogen nutrition and photosynthetic capacity in C3 and C4 plants.-Oecologia 44: 68-74, 1979. Go to original source...
    42. Yapp, J.H., Hadley, P.: Inter-relationships between canopy architecture, light interception, vigor and yield in cocoa: Implications for improving production efficiency.-In: Proceedings of International Cocoa Conference: Challenges in the 90s. Pp. 332-350. Malaysian Cocoa Board, Kuala Lumpar 1994.
    43. Ziska, L.H., Hogan, K.P., Smith, A.P., Drake, B.G.: Growth and photosynthetic response of nine tropical species with long-term exposure to elevated carbon dioxide.-Oecologia 86: 383-389, 1991. Go to original source...

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