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Pakistan Journal of Biological Sciences
  Year: 2000 | Volume: 3 | Issue: 5 | Page No.: 883-884
DOI: 10.3923/pjbs.2000.883.884
 
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Differential Growth Behaviour of Selected Wheat Genotypes for Phosphorus Deficiency Stress Tolerance I: Growth Characteristics

Yaseen, M. and T. Hussain

Abstract:
Response of genotypes was measured in terms of shoot (SDM) and root (RDM) dry matter weights, root-shoot ratio and relative SDM, P concentration. Relative reduction in SDM ranged from none to 54 percent. Genotypes with none or little influence of P deficiency stress on SDM were Kohinoor-83, Pb.85, Parvaz-94 and 4770. Highly P responsive genotypes includes Faisalabad-83, Chakwal-86, Pasban-90, 4072, 4943, 5039, 6529-11 and 6544-6. Differences in SDM exhibited the presence of genetic variation among wheat genotypes under P-deficient conditions. There was 29 percent increase in SDM with increase in P supply. Phosphorus supply levels significantly affect the root dry matter. High RDM at rock-P level indicated adoptation to the P stress. This was also clear from high root-shoot ratio at this P level. Genotypes with high root-shoot ratio showed better adoptation to low P conditions. Except Pak.81 and Parvaz-94 all the other wheat genotypes had greater ratio at rock-P than at adequate P level.
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How to cite this article:

Yaseen, M. and T. Hussain, 2000. Differential Growth Behaviour of Selected Wheat Genotypes for Phosphorus Deficiency Stress Tolerance I: Growth Characteristics. Pakistan Journal of Biological Sciences, 3: 883-884.

DOI: 10.3923/pjbs.2000.883.884

URL: https://scialert.net/abstract/?doi=pjbs.2000.883.884

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