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Van Yüzüncü Yıl Üniversitesi

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Browsing Van Yüzüncü Yıl Üniversitesi by Author "Abak, K"

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    Inheritance of Tolerance To Leaf Iron Deficiency Chlorosis in Tomato
    (Springer, 2004) Dasgan, HY; Abak, K; Cakmak, I; Römheld, V; Sensoy, S
    By using two tomato genotypes, "227/1" (Fe chlorosis susceptible) and "Roza" (Fe chlorosis tolerant), and their reciprocal F-1, F-2 and BC1 generations, the inheritance of tolerance to leaf Fe deficiency chlorosis of Roza was studied. Plants were grown in a nutrient solution and subjected to 2.0 x 10(-6) M Fe EDDHA and 10 mM NaHCO3 to induce Fe deficiency stress by stabilization of pH to 7.8-8.2. A rating scale of 1-3 for chlorophyll was used and both monogenic and polygenic inheritance hypotheses were tested. Better responses to Fe deficiency, as measured by SPAD meter values, were obtained from the cross "Roza x 227/1" than from the reciprocal cross. Data from F-2 and BC1 suggest Fe chlorosis tolerance of Roza is to be controlled by polygenic loci with a relatively high additive effect.