Quality traits of maize inbred lines and hybrids with efficient photosynthetic functions

Abstract

This study confirms the hypothesis that new and prospective maize inbred lines and hybrids possess dominant property of an efficient photosynthetic model. This and other relevant traits are successfully used in breeding programmes, modern technologies of 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 fluorescence 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 and thylakoid membranes. Furthermore, a grain structure including its physical and chemical properties of new maize inbred lines and hybrids was analyzed in the present study. In addition, breeding procedures, seed production, technological traits, properties and parameters of new and prospective maize inbred lines and maize hybrids were observed in the present study. Presented results show that properties of these inbred lines and 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, seed production and commercial maize production.