Photosynthetica 2003, 41(1):27-32 | DOI: 10.1023/A:1025896025959

Combined Effect of Irradiance and Water Regime on Sorghum Photosynthesis

Qingzhang Xu1, M.B. Kirkham1
1 Department of Agronomy, Kansas State University, Manhattan, Kansas, USA

Grain sorghum [Sorghum bicolor (L.) Moench. cvs. TX430 and KS82] was grown in a Haynie very fine sandy loam (coarse-silty, mixed, superactive, calcareous, mesic Mollic Udifluvents) under constant 47 % shade or full irradiance in a greenhouse under two watering regimes to see the combined and individual effects of low irradiance (LI) and low water (LW) on the sorghum genotypes. Under the high-irradiance (HI) and high-water (HW) treatment (control) and the LI-HW treatment, TX430 grew taller than KS82. Both LI and LW reduced several times the fresh and dry masses. Under the control conditions, TX430 reached its maximum net photosynthetic rate (PNmax) of 28.93 μmol m-2 s-1 at a photosynthetic photon flux density (PPFD) of 1 707 μmol m-2 s-1, and KS82 reached its PNmax of 28.32 μmol m-2 s-1 at a PPFD of 2 973 μmol m-2 s-1. The fact that TX430 had PNmax under a lower PPFD than KS82 may relate to its taller growth under LI conditions. Hence genotypes of sorghum might be selected for low irradiance using curves relating PN to PPFD.

Additional key words: crop breeding programs; drought resistance; photosynthetic photon flux density (PPFD); Sorghum bicolor; stomatal resistance

Published: March 1, 2003  Show citation

ACS AIP APA ASA Harvard Chicago Chicago Notes IEEE ISO690 MLA NLM Turabian Vancouver
Xu, Q., & Kirkham, M.B. (2003). Combined Effect of Irradiance and Water Regime on Sorghum Photosynthesis. Photosynthetica, 41(1), 27-32. doi: 10.1023/A:1025896025959
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open full article

    References

    1. Allard, G., Nelson, C.J., Pallardy, S.G.: Shade effects on growth of tall fescue. I. Leaf anatomy and dry matter partitioning.-Crop Sci. 31: 163-167, 1991a. Go to original source...
    2. Allard, G., Nelson, C.J., Pallardy, S.G.: Shade effects on growth of tall fescue. II. Leaf gas exchange characteristics.-Crop Sci. 31: 167-172, 1991b. Go to original source...
    3. Allen, L.H., Jr.: Shade-cloth microclimate of soybeans.-Agron. J. 67: 175-181, 1975. Go to original source...
    4. Bahmani, I., Hazard, L., Varlet-Grancher, C., Betin, M., Lemaire, G., Matthew, C., Thom, E.R.: Differences in tillering of long-and short-leaved perennial ryegrass genetic lines under full light and shade treatments.-Crop Sci. 40: 1095-1102, 2000. Go to original source...
    5. Deutsch, C.H.: Together at last: Cutting pollution and making money.-New York Times, 9 Sept. 2001, p. BU1, BU7, 2001.
    6. Farquhar, G.D., Sharkey, T.D.: Stomatal conductance and photosynthesis.-Annu. Rev. Plant Physiol. 33: 317-345, 1982. Go to original source...
    7. Fay, P.A., Knapp, A.K.: Stomatal and photosynthetic responses to shade in sorghum, soybean and eastern gamagrass.-Physiol. Plant. 94: 613-620, 1995. Go to original source...
    8. Fay, P.A., Knapp, A.K.: Photosynthetic and stomatal responses to variable light in a cool-season and a warm-season prairie forb.-Int. J. Plant Sci. 157: 303-308, 1996. Go to original source...
    9. Haussmann, B.I.G., Obilana, A.B., Ayiecho, P.O., Blum, A., Schipprack, W., Geiger, H.H.: Yield and yield stability of four population types of grain sorghum in a semi-arid area of Kenya.-Crop Sci. 40: 319-329, 2000. Go to original source...
    10. Hébert, Y., Guingo, E., Loudet, O.: The response of root/shoot partitioning and root morphology to light reduction in maize genotypes.-Crop Sci. 41: 363-371, 2001. Go to original source...
    11. Jarvis, P.G.: The estimation of resistances to carbon dioxide transfer.-In: Šesták, Z., Čatský, J., Jarvis, P.G. (ed.): Plant Photosynthetic Production. Manual of Methods. Pp. 566-631. Dr W. Junk N.V. Publ., The Hague 1971.
    12. Jarvis, P.G., Čatský, J., Eckhardt, F.E., Koch, W., Koller, D.: General principles of gasometric methods and main aspects of installation design.-In: Šesták, Z., Čatský, J., Jarvis, P.G. (ed.): Plant Photosynthetic Production. Manual of Methods. Pp. 49-110. Dr W. Junk N.V. Publ., The Hague 1971.
    13. Kelliher, F.M., Kirkham, M.B., Hunt, J.E.: Photosynthesis and stomatal conductance of the New Zealand tree, Meryta sinclairii, grown under two watering regimes.-New Zeal. J. Bot. 38: 515-519, 2000. Go to original source...
    14. Klebnikov, P.: Clearing the air in China's polluted cities.-Environ. Defense 31(3): 7, 2000.
    15. Klebnikov, P.: China commits to reducing air pollution.-Environ. Defense 32(6): 1, 2001.
    16. Klebnikov, P.: Houston, we have a problem.-Environ. Defense 33(2): 4, 2002.
    17. Levitt, J.: Responses of Plants to Environmental Stresses. Vol. II.-Academic Press, New York 1980.
    18. Lichtenthaler, H.K., Babani, F., Langsdorf, G., Buschman, C.: Measurement of differences in red chlorophyll fluorescence and photosynthetic activity between sun and shade leaves by fluorescence imaging.-Photosynthetica 38: 521-529, 2000. Go to original source...
    19. McMurtrey, J.E., Jr., Barford, M.F.: Tobacco.-Encycl. brit. 22: 42-46, 1971. Go to original source...
    20. Raschke, K.: The influence of the CO2 content of the ambient air on stomatal conductance and the CO2 concentration in leaves.-In: Enoch, H.Z., Kimball, B.A. (ed.): Carbon Dioxide Enrichment of Greenhouse Crops. Vol. II. Physiology, Yield, and Economics. Pp. 87-102. CRC Press, Boca Raton 1986.
    21. Schussler, J.R., Westgate, M.E.: Assimilate flux determines kernel set at low water potential in maize.-Crop Sci. 35: 1074-1080, 1995. Go to original source...
    22. Slavík, B.: Determination of stomatal aperture.-In: Šesták, Z., Čatský, J., Jarvis, P.G. (ed.): Plant Photosynthetic Production. Manual of Methods. Pp. 556-565. Dr W. Junk N.V. Publ., The Hague 1971.
    23. Song, Y., Kirkham, M.B., Ham, J.M., Kluitenberg, G.J.: Dual probe heat pulse technique for measuring soil water content and sunflower water uptake.-Soil Tillage Res. 50: 345-348, 1999. Go to original source...
    24. Song, Y., Kirkham, M.B., Ham, J.M., Kluitenberg, G.J.: Rootzone hydraulic lift evaluated with the dual-probe heat-pulse technique.-Aust. J. Soil Res. 38: 927-935, 2000. Go to original source...

    Return to the content