ISHS Acta Horticulturae 441: V Temperate Zone Fruit in the Tropics and Subtropics
GROWTH AND CHEMICAL COMPOSITION OF GRAPE TRANSPLANTS AS AFFECTED BY SOME IRRIGATION REGIMES |
| Authors: | I. Shawky, M.A. Rawash, Z. Behairy, M. Bondok, M. Mostafa |
| Abstract:
A pot experiment was conducted in 1987 and 1988 on Banaty and Red Romi grape transplants to study the effect of four irrigation regimes i.e. irrigation after the depletion of 20 % 40 % 60 % and 80 % of available water on vegetative growth and chemical composition of transplants. Increasing water stress (irrigation after the depletion of 50 % or 80 % of available water) significantly reduced plant growth and the content of chlorophyll, IAA and GAs in leaves. On the other hand, these treatments increased proline and ABA in leaves. Red Romi transplants usually showed greater growth and higher content of proline and Gas but lower ABA in leaves than Banaty ones. In both grape cvs., and in both seasons, N, P and K contents in leaf petiols were not affected significantly by different irrigation treatments. | |
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