?EFFECTS OF NaCI AND CaCl2 ON CALLUS TISSUE OF GOSSYPIUM HIRSUTUM L.CV. ACALA SJ2

Authors

  • Lal Hussain Akhtar RegionalAgricultural Research Institute,Bahawalpur,Pakistan
  • John Gorham Centre for Arid Zone Studies,University of Wales,Bangor,Gwynedd LL57 2UW,UK
  • Muhammad Nasrullah Cotton Research Station,Multan,Pakistan

Keywords:

Salinity, Calcium nutrition, Callus tissue, Gossypium hirsutum.

Abstract

The interactive effect of NaC1 and CaCI2 on the leaf and petiole-derived calli of Acala SJ2 (Gossypium hirsutum.
L.)grown on Murashige and Skoog (1962) tissue culture medium was studied. Relative growth rate was used to
assess the tolerance. NaCI reduced growth rate while calcium partially ameliorated the effects of NaCI. Water content
of the callus decreased significantly with increasing salinity levels in the culture medium while reverse was true at
high calcium level. NaCI resulted in higher Na' and lower K+and Mg+2.The reverse was true for calcium up to 30
mol m'. C+2concentration decreased with increasing salinity but increased at higher calcium levels. Cl contents
increased with increasing salinity and calcium levels in the medium. NO'3' SO/ and P04') were unaffected by salinity.
In both kinds of callus, the highest calcium (up to 60 mol m') and salinity (200 mol m") levels increased proline
accumulation. The correlation between relative growth rate and proline concentration was -0.98 (leaf callus) and -
0.97 (petiole callus). The results suggested that salinity reduced the callus growth while calcium ameliorated its toxic
effects. Proline acted as a compatible solute. The callus cultures from different explant sources of the same genotype
behaved differently in vitro.

Published

1999-10-18

How to Cite

Akhtar, L. H., Gorham, J., & Nasrullah, M. (1999). ?EFFECTS OF NaCI AND CaCl2 ON CALLUS TISSUE OF GOSSYPIUM HIRSUTUM L.CV. ACALA SJ2. Biological Sciences - PJSIR, 42(5), 260–272. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/2178

Most read articles by the same author(s)