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  3. 190-201
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Journal of Plant Sciences

Year: 2011 | Volume: 6 | Issue: 5 | Page No.: 190-201
DOI: 10.3923/jps.2011.190.201

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Authors


N. Arabzadeh

Country: Iran

Keywords


  • resistance to dryness
  • free proline
  • drought stress
  • Haloxylon
Research Article

A Study on the Impact of Drought Stress on Changes of Free Proline in Two Species of Haloxylon persicum and Haloxylon aphyllum

N. Arabzadeh
For the purpose of studying the changes of free proline as one of the important metabolites in plants under drought stress, the seeds of two types of Haloxylon persicum and Haloxylon aphyllum were planted in vase. Then their resulting twigs were taken care for one year and after one month compatibility with greenhouse environment, they underwent drought stress operations. The study of changes of this osmolyte in the branchlet and roots of the twigs of these two types of haloxylons were programmed within the format of a Completely Randomized Design with two treatments of species and fifteen treatments of tension (avoiding irrigating the twigs). The two species of Haloxylon persicum and Haloxylon aphyllum and the levels of 0 (control), 2, 4 … and 28 days of no-irrigation were determined as treatments of the experiment. The free proline was measured by using Bates. method. The analysis of data was done through the method of two sides' variance analysis and averages were compared by using Duncan's test. The study of the data of branchlet showed that the impact of drought stress on the increase of the rate of proline in both types of haloxylons was meaningful with a 99% possibility, however, no meaningful changes was observed between these two species. The analysis of the data of the both species roots confirmed a very meaningful impact of the factor of tension and the meaningful impact of the factor of species on changes of free proline. The study of the impact of drought stress on changes of the quantity of total proline showed that the changes of this feature is in a full similarity with the changes of the proline of the root and following the same model. The increase of the rate of proline of branchlet, root and total proline was in agreement with tension intensity.
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How to cite this article

N. Arabzadeh, 2011. A Study on the Impact of Drought Stress on Changes of Free Proline in Two Species of Haloxylon persicum and Haloxylon aphyllum. Journal of Plant Sciences, 6: 190-201.

DOI: 10.3923/jps.2011.190.201

URL: https://scialert.net/abstract/?doi=jps.2011.190.201

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