Traits of new maize inbred lines and hybrids with efficient photosynthetic functions
2010
Radenović, Č., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia) | Filipović, M., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia) | Sečanski, M., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia) | Stanković, G., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia) | Gračić, N., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia) | Pavlov, J., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia) | Čamdžija, Z., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia)
This study confirms the hypothesis that there are new elite maize inbred lines and prospective hybrids, which have a dominant property of an efficient photosynthetic model that is successfully used in breeding programmes, modern technologies of the seed and commercial maize production. This statement is supported by the displayed results on the erect position of the top leaves of new maize inbred lines and photosynthetic and florescence parameters: the change of the delayed chlorophyll fluorescence intensity during its course and dynamics, the Arrhenius criterion for the determination of critical temperatures (phase transition temperatures) and the activation energies, as a measure of conformational changes in chloroplasts the thylakoid membrane. Furthermore, a grain structure, including its physical and chemical parameters, of new maize inbred lines was analysed in the present study. Also, relevant breeding, seed production and technological traits, properties and parameters of new inbred lines and prospective maize hybrids were observed in the present study. The presented results show that properties of new inbred lines and prospective maize hybrids are based on the nature of conformational and functional changes that occur in their chloroplasts and thylakoid membranes, as well as, on progressive effects in maize breeding, modern hybrid seed production and the commercial maize production.
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