Biologia plantarum 45:141-144, 2002 | DOI: 10.1023/A:1015193700547

Effects of Increased Supply of Potassium on Growth and Nutrient Content in Pearl Millet under Water Stress

M. Ashraf1, M. Ashfaq1, M.Y. Ashraf2
1 Department of Botany, University of Agriculture, Faisalabad, Pakistan
2 Nuclear Institute for Agriculture and Biology, Faisalabad, Pakistan

Influence of increased K supply on growth and nutrient content in pearl millet (Pennisetum glaucum) under severe water stress was assessed in a pot experiment under glasshouse conditions. Nineteen-day-old plants of two lines, ICMV94133 and WCA-78 were subjected for 30 d to 235, 352.5, and 470 mg(K) kg-1(soil) and two water regimes (100 and 30% field capacity). Increasing soil K supply did not alleviate the adverse effect of water deficit on the growth of two lines of pearl millet. Accumulation of N and K in the shoots of both lines was higher under water deficit than that under well-watered conditions, but such effect was not observed for P or Ca.

Keywords: drought stress; inorganic nutrients; Pennisetum glaucum
Subjects: drought stress, tolerance, resistance; pearl millet, water stress, potassium supply; Pennisetum glaucum; water stress, potassium supply

Published: March 1, 2002Show citation

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Ashraf, M., Ashfaq, M., & Ashraf, M.Y. (2002). Effects of Increased Supply of Potassium on Growth and Nutrient Content in Pearl Millet under Water Stress. Biologia plantarum45(1), 141-144. doi: 10.1023/A:1015193700547.
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References

  1. Abdel-Wahab, A.M., Abd-Alla, M.H.: The role of potassium fertilizer in nodulation and nitrogen fixation of faba beans (Vicia faba L.) plants under drought stress.-Biol. Fertil. Soil 20: 147-150, 1995. Go to original source...
  2. Allen, S.E., Grimshaw, H.M., Rowland, A.P.: Chemical analysis.-In: Moore, P.D., Chapman, S.B. (ed.): Methods in Plant Ecology. 2nd Ed. Pp 285-344. Blackwell Scientific Publications, Oxford 1986.
  3. Ashraf, M., Naz, F.: Responses of some arid zone grasses to K deficiency.-Acta Physiol. Plant. 16: 69-80, 1994.
  4. Ashraf, M., Zafar, Z.U., Cheema, Z.A.: Effect of low potassium regimes on some salt-and drought-tolerant lines of pearl millet.-Phyton 34: 219-227, 1994.
  5. Bänziger, M., Edmeades, G.O., Lafitte, H.R.: Selection for drought tolerance increases maize yields across a range of nitrogen levels.-Crop Sci. 39: 1035-1040, 1999. Go to original source...
  6. Barnett, N.M., Naylor, A.W.: Amino acids and protein metabolism in Bermuda grass during water stress.-Plant Physiol. 41: 1222-1226, 1966. Go to original source...
  7. Bidinger, F.R., Mahalakshmi, V., Rao, G.D.P.: Assessment of drought resistance in pearl millet (Pennisetum americanum (L.) Leeke). II. Estimation of genotype response to stress.-Aust. J. agr. Res. 38: 49-59, 1987. Go to original source...
  8. Epstein, E.: Mineral Nutrition of Plants: Principles and Perspectives.-Wiley, New York 1972.
  9. Evans, H.J., Sorger, G.J.: Role of mineral elements with emphasis on the univalent cations.-Annu. Rev. Plant Physiol. 17: 47-77, 1966. Go to original source...
  10. Flowers, T.J., Läuchli, A.: Sodium versus potassium: substitution and compartmentation.-In: Läuchli, A., Bieleski, R.I. (ed.): Encyclopedia of Plant Physiology. Vol. 15. Part B. Pp. 651-681. Springer-Verlag, Berlin-New York 1983.
  11. Jacoby, B., Abas, S., Steinitz, B.: Rubidium and potassium absorption by bean-leaf slices compared to sodium absorption.-Physiol. Plant. 28: 209-214, 1973. Go to original source...
  12. Jones, M.M., Osmond, C.B., Turner, N.C.: Accumulation of solutes in leaves of sorghum and sunflower in response to water deficits.-Aust. J. Plant Physiol. 7: 193-205, 1980.
  13. Kirkby, E.A.: Nitrogen Nutrition of Plant.-The University of Leeds Press, Leeds 1970.
  14. Läuchli, A., Pflüger, R.: Potassium transport through plant cell membranes and metabolic role of potassium in plants.-In: Potassium Research Review and Trends. Pp. 111-163. Potash Institute, Berne 1978.
  15. Lindhauer, M.G.: Influence of potassium nutrition and growth of sunflower (Helianthus annuus L.).-Z. Pflanzenernähr. Bodenk. 148: 654-669, 1985. Go to original source...
  16. Loneragan, J.F., Snowball, K.: Calcium requirements of plants.-Aust. J. agr. Res. 20: 465-478, 1969. Go to original source...
  17. Marschner, H.: Mineral Nutrition of Higher Plants. 2nd Ed. Academic Press, London 1995.
  18. Mengel, K., Kirkby, E.A.: Principles of Plant Nutrition. International Potash Institute, Berne 1987.
  19. Mengel, K., Pflüger, R.: The release of potassium and sodium from young excised roots of Zea mays under various efflux conditions.-Plant Physiol. 49: 16-19, 1972. Go to original source...
  20. Morgan, J.M.: Osmotic components and properties associated with genotypic differences in osmoregulation in wheat.-Aust. J. Plant Physiol. 19: 67-76, 1992.
  21. Quintero, J.M., Fournier, J.M., Ramos, J., Benlloch, M.: K+ status and ABA affect both exudation rate and hydraulic conductivity in sunflower roots.-Physiol. Plant. 102: 279-284, 1998. Go to original source...
  22. Sinha, S.K.: Influence of potassium on tolerance to stress.-In: Sekhon, G.S. (ed.): Potassium in Soils and Crops. Pp. 223-243. Potash Research Institute, New Delhi 1978.
  23. Snedecor, G.W., Cochran, W.G.: Statistical Methods. 7th Ed. The Iowa State University Press, Ames 1980.
  24. Van Oosterom, E.J., Mahalakshmi, V., Arya, G.K., Dave, H.R., Gothwal, B.D., Joshi, A.K., Joshi, P., Kapoor, R.L., Sagar, P., Saxena, M.B., Singhania, D.L., Vyas, K.L.: Effect of yield potential, drought escape and drought tolerance on yield of pearl millet (Pennisetum glaucum) in different stress environments.-Indian J. agr. Res. 65: 629-635, 1995.