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| Authors: | Y. Saranga, J. Rudich, D. Zamir |
Abstract:
Lycopersicon esculentum, L. pennellii and their Interspecific progenles were tested under filed conditions for their physiologic responses to salinity (EC 1, 10, 20 mS/cm). L. esculentum seemed to exclude Na under salinity, its Na/K ratio increased slightly and growth was reduced.
Under the same conditions L. Pennellii accumulated Na and there was only a small effect on growth, indicating tissue tolerance to high Na content.
In the F1 Na/K ratio did not change in response to salinity, Na content increased and growth was not affected.
Significant linkage associations were found between isozyme markers and several phsiological characteristics in Interspecific segregating populations.
The results suggest that regulation of Na/K ratio combined with tissue tolerance to high Na contents is essential for salt tolerant tomato plants.
Isozyme markers may be useful for indentification of Loci responsible for salt tolerance of selected genotypes.
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