Effect of saline irrigation on chemical constituents of one-year-old rooted vines. 1.- Sugars and N.P.K. content [Egypt]
1983
Sourial, G.F. (Zagazig Univ. (Egypt). Faculty of Agriculture) | Meligi, M.A. | Tawfik, A.A. | El-Demerdash, A.E.
Study was carried out in 1979 and 1980 to determine the effect of different salinity levels on sugars and N.P.K. contents of one-year-old rooted grapevines CVS. Banati (Thompson Seedless) and Roumi Red. Salinity treatments, particularly at the higher levels, reduced the percentage of reducing, non-reducing and total sugar in leaves of both cultivars and in Roumi Red roots and stems. All tested salinity levels decreased N and K percentage in roots, stems, and leaves, and P percentage in leaves of both tested cultivars. The actual amounts of N, P and K in roots, stems and leaves of the two cultivars showed clear reductions with all tested salinity levels. Such reductions were directly associated with the reduction in dry matter content.
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