USING SOME GROWTH SUBSTANCES TO IMPROVING RICE PLANT FOR SALINITY TOLERANCE CONDITIONS | ||||
Journal of Plant Production | ||||
Article 10, Volume 32, Issue 12, December 2007, Page 10047-10058 PDF (606.01 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/jpp.2007.221258 | ||||
View on SCiNiTO | ||||
Authors | ||||
M. T. Saker,1; M. H. M. Afifi2 | ||||
1Botany Dept., Faculty of Agriculure, Mansoura Univ. | ||||
2Crop Field Research, Centre National Research | ||||
Abstract | ||||
Two field experiments were conduct during summer season of 2006 and 2007 at Tag El-Ezz Research Station, Dakahlia Governorate, Egypt; to study the effects of gibberellins, cytokinins and urea to increase tolerance of rice plants for high levels of salts. In addition, the best treatment through the interaction between them, as well as the salt level that gives the best productivity of rice yield. High salinity levels led to decreased total chlorophyll, ascorbic acid and soluble sugars content in rice plant especially in the sensitive rice cultivar, on reverse of proline content. Using growth substances, urea, and their combinations increased total chlorophyll, ascorbic acid and soluble sugars content in rice plant especially in the sensitive rice cultivar, but on reversal that proline content. | ||||
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