Photosynthetica 1999, 36(1):99 | DOI: 10.1023/A:1007022904995

Influence of Phosphorus on Gas Exchange and Plant Growth of Two Morphologically Distinct Types of Capsicum Annuum

F.T. Davies Jr.1, S.A. Duray1, L. Phavaphutanon1, R.S. Stahl1
1 Department of Horticultural Sciences, Texas A&M University, College Station, USA

Tolerance to phosphorus stress was studied in Capsicum annuum L. Chile ancho cv. San Luis and bell pepper cv. Jupiter plants. Plants were fertilized weekly with Long-Ashton nutrient solution (LANS) modified to supply 0, 11, 22, 44, 66, or 88 g(P) m-3 (P0, P11, P22, P44, P66, P88). Phosphorus stress occurred in both cultivars at P0 and P11, with reduced plant growth and development. At P0, the lowest percentage of total biomass was directed toward reproductive growth. The root/shoot ratio was greatest at P0, reflecting greater dry matter partitioning to the root system. Growth of 'San Luis' was more sensitive to phosphorus stress than 'Jupiter'. A greater percentage of total biomass was directed towards reproductive growth in 'Jupiter' than 'San Luis'. Increasing P nutrition elevated leaf tissue P in both cultivars with highest leaf tissue P at P88. There were no differences in tissue P between P0 and P11 'San Luis' plants, whereas P0 'Jupiter' plants had the lowest tissue P. Low P-plants generally had the highest tissue N and lowest S, Mn, and B. In both cultivars, gas exchange was lowest at P0, as indicated by reduced stomatal conductance (gs) and net photosynthetic rate (PN). Internal CO2 concentration and leaf-to-air vapor pressure difference (VPD) were generally highest with P-stressed plants. Phosphorus use efficiency, as indicated by PN per unit of leaf tissue P concentration (PN/P), was highest at P11. Generally, no P treatments exceeded the gas exchange levels obtained by P44 (full strength LANS) plants. Both PN and gs declined during reproductive growth in 'San Luis', which fruits more rapidly than 'Jupiter', whereas no reduction in gas exchange occurred with 'Jupiter'.

Published: June 1, 1999  Show citation

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Davies, F.T., Duray, S.A., Phavaphutanon, L., & Stahl, R.S. (1999). Influence of Phosphorus on Gas Exchange and Plant Growth of Two Morphologically Distinct Types of Capsicum Annuum. Photosynthetica, 36(1-2), 99. doi: 10.1023/A:1007022904995
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    References

    1. Andrews, J.: The Domesticated Capsicums.-University of Texas Press, Austin 1995.
    2. Bosland, P.W.: Chiles: a diverse crop.-HortTechnology 2: 7-10, 1992. Go to original source...
    3. Brown, M.S., Bethlenfalvay, G.J.: The Glycine-Glomus-Rhizobium symbiosis. VII. Photosynthetic nutrient-use efficiency in nodulated, mycorrhizal soybeans.-Plant Physiol. 86: 1292-1297, 1988. Go to original source...
    4. Davies, F.T., Jr., Linderman, R.G.: Short term effects of phosphorus and VA-mycorrhizal fungi on nutrition, growth and development of Capsicum annuum L.-Scientia Hort. 45: 333-338, 1991. Go to original source...
    5. Davies, F.T., Jr., Potter, J.R., Linderman, R.G.: Drought resistance of mycorrhizal pepper plants independent of leaf P concentration - response in gas exchange and water relations.-Physiol. Plant. 87: 45-53, 1993. Go to original source...
    6. Dietz, K.J., Foyer, C.: The relationship between phosphate status and photosynthesis in leaves. Reversibility of the effects of phosphate deficiency on photosynthesis.-Planta 167: 376-381, 1986. Go to original source...
    7. Haas, J.H., Bar-Yosef, B., Krikun, J., Barak, J., Markovitz, T., Kramer, S.: Vesicular-arbuscular mycorrhizal fungus infection and phosphorus fertigation to overcome pepper stunting after methyl bromide fumigation.-Agron. J. 79: 905-910, 1987. Go to original source...
    8. Hansen, C.W., Lynch, J., Ottosen, C.O.: Response to phosphorus availability during vegetative and reproductive growth of Chrysanthemum: I. Whole-plant carbon dioxide exchange.-J. amer. Soc. hort. Sci. 123: 215-222, 1998. Go to original source...
    9. Hewitt, E.J.: Sand and Water Culture Methods in the Study of Plant Nutrition.-Tech. Commun. No. 22. 2nd Ed. Comonw. Agric. Bur., London 1966.
    10. Hewitt, E.J., Smith, T.A.: Plant Mineral Nutrition.-English Universities Press, London 1974.
    11. Kramer, P.J., Boyer, J.S.: Water Relations of Plants and Soils.-Academic Press, New York 1995. Go to original source...
    12. Lauer, M.J., Pallardy, S.G., Blevins, D.G., Randall, D.D.: Whole leaf carbon exchange characteristics of phosphate deficient soybeans (Glycine max L.).-Plant Physiol. 91: 848-854, 1989. Go to original source...
    13. Maynard, D.N., Hochmuth, G.J.: Knott's Handbook for Vegetable Growers. 4th Ed.-John Wiley and Sons, New York 1997.
    14. Radin, J.W.: Stomatal responses to water stress and abscissic acid in phosphorus-deficient cotton plants.-Plant Physiol. 76: 392-394, 1984. Go to original source...
    15. Radin, J.W., Eidenbock, M.P.: Carbon accumulation during photosynthesis in leaves of nitrogen-and phosphorus-stressed cotton.-Plant Physiol. 82: 869-871, 1986. Go to original source...
    16. Rao, I.M., Terry, N.: Leaf phosphate status and photosynthesis in vivo: Changes in sugar phosphates, adenylates and nicotinamide nucleotides during photosynthetic induction in sugar beet.-Photosynthetica 30: 243-254, 1994.
    17. SAS Institute: SAS/STATE User's Guide, Version 6.03.-SAS Institute, Cary 1988.

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