Eissa,, A., Haggag, M., EI-Sabrout, M., Abd EI-Rahman, M. (2003). EFFECT OF SOME SODIUM SALTS ON THE GROWTH, MINERAL COMPOSITION AND ORGANIC CONTENT Of SOME GRAPE ROOTSTOCKS \II. THE ORGANIC CONTENT. Journal of Plant Production, 28(8), 6271-6287. doi: 10.21608/jpp.2003.244797
A. M. Eissa,; M. N. Haggag; M. B. EI-Sabrout; M. E. Abd EI-Rahman. "EFFECT OF SOME SODIUM SALTS ON THE GROWTH, MINERAL COMPOSITION AND ORGANIC CONTENT Of SOME GRAPE ROOTSTOCKS \II. THE ORGANIC CONTENT". Journal of Plant Production, 28, 8, 2003, 6271-6287. doi: 10.21608/jpp.2003.244797
Eissa,, A., Haggag, M., EI-Sabrout, M., Abd EI-Rahman, M. (2003). 'EFFECT OF SOME SODIUM SALTS ON THE GROWTH, MINERAL COMPOSITION AND ORGANIC CONTENT Of SOME GRAPE ROOTSTOCKS \II. THE ORGANIC CONTENT', Journal of Plant Production, 28(8), pp. 6271-6287. doi: 10.21608/jpp.2003.244797
Eissa,, A., Haggag, M., EI-Sabrout, M., Abd EI-Rahman, M. EFFECT OF SOME SODIUM SALTS ON THE GROWTH, MINERAL COMPOSITION AND ORGANIC CONTENT Of SOME GRAPE ROOTSTOCKS \II. THE ORGANIC CONTENT. Journal of Plant Production, 2003; 28(8): 6271-6287. doi: 10.21608/jpp.2003.244797
EFFECT OF SOME SODIUM SALTS ON THE GROWTH, MINERAL COMPOSITION AND ORGANIC CONTENT Of SOME GRAPE ROOTSTOCKS \II. THE ORGANIC CONTENT
Department of Pomology, Faculty of Agriculture, Alexandria University, Alexandria, Egypt.
Abstract
The present investigation was carried out during 2000 and 2001 growing seasons In order to study the effect of sodium chloride and sodium carbonate treatments on organic content of four grapevine cultivars (commonly used as rootstocks) namely, Harmony, 1103 Paulsen, Oogridge and Thompson seedless.
The main results can be summarized In the following pOints:
A, Effect of salinity treatments
1· Total chlorophyll content signiflCSnlly decreased in the leaves with different sod um chloride and sodium carbonate treatments as compared with the control in oth seasons.
2· Total phenols content significanlly decreased in the leaves with salinity treatments, in the firsl season, while it increased in the second one.
3- Both 3000 ppm sodium chloride and 750 ppm sodium carbonate treatments signiflCanUy decreased root total sugars than the other treatments.
4- Plants treated with 1500 ppm sodium carbonate had significantly higher root reducing sugars than the other treatments, except the control.
5- In the first season, no significant differences among.the studied treatments ere recorded with respect to leaf starch content. In the second season, 1500 ppm sodium carbonate trealment significantly increased leaf starch content than the other treatments, except Ihe cootrot, The plants treated with 750 ppm sodium carbonate had Significantly higher root starch content than the other treatments.
6· No significant differences were found among the studied treatments with respect to leaf C/N rano, in the first season. In the second season, 1500 ppm sodium carbonate had significantly higher leaf ClN ratio than the other treatments. Sodium carbonate treatments significantly increased root C/N ratio Ihan the control W ich had significanUy higher value than sodium chloride treatments.
Effect of rootstocks
1· In both seasons, Thompson seedless had signifICantly higher leaf reducing sugars and lower non - reducing sugars. However, lhe roots had higt'ler reducing sugars and lower CIN rallo.
2· The leaves of Dogridge had Significantly low phenols in both seasons and reducing sugars, in the second season. And their roots contained significantly tow total and non - reducing sugars.
3- The leaves of Harmony contained significantly high non - reducing sugars. In the meantime, their roots had significantly high phenols, tolal and non - redUCing sugars, and low starch and total carbohydrates contents.
4- 1103 Pautsen leaves contained significantly high phenols content. whereas the roots had high starch, lotat carbohydrates and CIN ratio and low phenols conlent, however.
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