Inheritance of tolerance to leaf iron deficiency chlorosis in tomato

Dasgan H., Abak K., Cakmak I., Romheld V., Sensoy S.

Euphytica, vol.139, no.1, pp.51-57, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 139 Issue: 1
  • Publication Date: 2004
  • Doi Number: 10.1007/s10681-004-2033-6
  • Journal Name: Euphytica
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.51-57
  • Van Yüzüncü Yıl University Affiliated: Yes

Abstract

By using two tomato genotypes, "227/1" (Fe chlorosis susceptible) and "Roza" (Fe chlorosis tolerant), and their reciprocal F 1, F2 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 × 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 × 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. © 2004 Kluwer Academic Publishers.