Genetic basis of heterosis in photosynthetic characteristics of maize (Zea mays L.) grown under low-temperature conditions

Abstract

Structural and functional photosynthetic parameters were studied in two hybrid combinations of maize grown under optimum and suboptimum conditions. Hybrid genotypes were better adapted to low temperature compared to inbred lines.

Keywords

• photosynthesis
• stress
• low temperature
• intraspecific variability
• photosynthetic activity
• chloroplasts
• ultrastructure
• antioxidants
• chlorophylls
• carotenoids
• heterosis
• genetic analysis
• maize