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In this study, we will investigate salt stress on fertilization of tomato seeds. Twenty two genotypes of domestic tomato seeds (Lycopersicum esculentum) and three genotypes of wild type tomato seeds (Lycopersicum peruvianum, Lycopersicum penellii, Lycopersicum hirsitum) will be used. The seeds will be seeded in various conditions such as +25 °C, and irrigated by water containing 0, 25, 50, 75, 100, 125, 150 mM salt and will be observe during 15 days period. At the end of the study, we will determine the effects of salt stress by fertilization ratios of the seeds under the stress conditions. By the study, we will classify the domestic tomato genotypes as sensitive or resistant to the stress factors by compared the three wild type tomato seeds fertilization ratios as a reference values. By the way, we will determined the most resistant domestic tomato genotype to salt stress for future tomato grow in our region that the soil being salt by irrigation with water. Maximum salt concentration in varieties of tomato is determined at tolerable genotypes at the situation of 125-150mM salt (NaCl) however it is determined at sensitive genotypes at the situation of 50-75mM NaCl. [ABSTRACT FROM AUTHOR]

In this work, the effects of double, triple and quadruple combinations of gibberellic acid (GA3), kinetin (Kin), benzyladenine (BA), 24-epibrassinolide (EBR), ethylene (E) polyamines (cadaverine, putrescine, spermidine, spemine) on the mitotic index and chromosomal abberations of barley seeds (Hordeum vulgare L. var. Bülbül 89) germinated under saline conditions were studied. In paralel to the rises in salt concentrations rise, mitotic activity significantly decreased and percantage of chromosomal abberation increased. Most of the plant growth regulator combinations studied showed positive effect on mitotic activity in high salt concentrations. Besides, most of this growth regulators were succesful in alleviating of the negative effect of percantage of chromosomal abberation in all the salt levels. Consequently, it was determined that plant growth regulator combinations mentioned affected in different degrees on mitotic index and chromosomal abberations of barley seeds and this difference was statistically important. [ABSTRACT FROM AUTHOR]