Differential Response of a Maize Hybrid and its Parental Lines to Salinity Stress

0395064 - ÚEB 2014 RIV CZ eng J - Journal Article
Procházková, Dagmar - Sairam, R. - Lekshmy, S. - Wilhelmová, Naděžda
Differential Response of a Maize Hybrid and its Parental Lines to Salinity Stress.
Czech Journal of Genetics and Plant Breeding. Roč. 49, č. 1 (2013), s. 9-15. ISSN 1212-1975. E-ISSN 1805-9325
R&D Projects: GA ČR GA521/07/0470
Institutional research plan: CEZ:AV0Z50380511
Keywords : antioxidant enzymes * Na+ * proline
Subject RIV: GE - Plant Breeding
Impact factor: 0.486, year: 2013
http://agriculturejournals.cz/publicFiles/84696.pdf

We studied differences in salt stress response between two parental maize genotypes and their hybrid of the first filial (F1) generation. We determined their membrane stability index in addition to the content of photosynthetic pigments, superoxide radical, Na+, proline and sugars and the activities of ascorbate peroxidase, catalase and glutathione reductase. The F1 hybrid, known as Pusa Early Hybrid Makka 3 (PEHM 3), showed a higher membrane stability index and chlorophyll content and lower superoxide radical and Na+ content than its parents, the sensitive CM 142 line and the tolerant CM 213 line. This heterosis allows the conclusion that the hybrid might be better equipped to cope with salinity stress than both parental lines, although it did not show the best antioxidant protection or the highest sugar or proline content.
Permanent Link: http://hdl.handle.net/11104/0223219